A co-axial cable is a cable that has two concentric conductors, the outer conductor and the inner conductor.
It is used for high-frequency applications because it has low signal loss, noise immunity, and high bandwidth. The equivalent circuit of a co-axial cable can be shown in the figure below:Equation 1The equivalent inductance, L, of the cable is given by,Equation 2where r1 and r2 are the radii of the inner and outer conductors of the cable, respectively. Similarly, the capacitance of the cable per unit length can be shown as:Equation 3where ε is the permittivity of the dielectric material used between the conductors and l is the length of the cable.The assumptions made while deriving the characteristic impedance of the co-axial cable are as follows
Using Kirchhoff's voltage law in the outer conductor,Equation 5By applying Ampere's law to the magnetic field around the inner conductor,Equation 6By applying Ampere's law to the magnetic field around the outer conductor,Equation 7From the equations 4 and 5,Equation 8From equations 6 and 7,Equation 9Solving equations 8 and 9 for V and I, respectively,Equation 10Equation 11Substituting equation 10 and equation 11 in equation 2 and simplifying, we get:Equation 12where R is the resistance per unit length of the cable. To derive the characteristic impedance of the cable, Equation 13Substituting equation 12 in equation 13 and solving, we get the characteristic impedance of the cable as,Equation 14Thus, the characteristic impedance of the co-axial cable is given by equation 14.
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After a strong storm, a worker does not realize that a power transmission line has fallen on his car and is electrocuted while opening the car door. What is this an example of?.
Answer:
This is an example of the conduction of electricity through metal. Free moving electrons on the car will conduct a electric field when a voltage is applied to the car; in this case the transmission line, and would flow through the metal to the door handle causing electrocution.
What does efficiency measure?
Answer:
Efficiency is defined as any performance that uses the fewest number of inputs to produce the greatest number of outputs. Simply put, you're efficient if you get more out of less.
Explanation:
A typical discounted price of a AAA battery is $0.75. It is designed to provide 1.5 volts and 1.0 amps for about an hour. Now we multiply volts and amps to obtain power of 1.5 watts from the battery. Thus, it costs $0.75 for 1.5 Watt-hours of energy. How much would it cost to deliver one kilo Watt-hour? How does this compare with the cost of energy from your local electric utility at $0.10 per kilo Watt-hour?
Answer:
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Explanation:
doing for points
The Cost of 1 kilowatt hour of energy at the rate of $0.75 per 1.5 watt hour is $500 which is 5000 times greater than the cost of energy at $0.10 per kilowatt hour.
Battery power = Current × Voltage
Cost of 1.5 Watt-hour = $0.75
Converting Energy to Watt - hour :
1 kilowatt = 1000 watt
1 kilowatt hour = 1000 watt - hour
Hence,
Cost of 1 kilowatt - hour = 1000 watt - hour can be calculated thus :
1.5 Watt-hour = $0.75
1000 Watt-hour = c
Cross multiply :
1.5c = $0.75 × 1000
1.5c = 750
c = 750 / 1.5
c = 500
Therefore, cost of 1 kilowatt - hour of energy will be $500
Comparing the cost of Energy at $500 per Kilo-Watt hour to Cost at $0.10:
$500 / $0.10 = 5000
Therefore, the cost of energy at $500 per kilowatt hour is 5000 times greater than cost at $0.10 per kilowatt hour.
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The acrylic plastic rod is 200 mm long and 10 mm in diameter. If a tensile load of 300 Nis applied to it, determine: 300 N 300 N 200 mm a)The normal stress b)The final length of the rod , If the strain (c) of the rod is 0.04.
a) The normal stress on the acrylic plastic rod is approximately 191.013 N/mm².
b) The final length of the rod, considering a strain of 0.04, is 208 mm.
c) The strain (ε) of the acrylic plastic rod is 0.04.
To calculate the normal stress, we use the formula: Normal stress = Force / Area. Given that the force applied is 300 N and the diameter of the rod is 10 mm, we first need to calculate the area of the rod's cross-section.
The area is determined using the formula: Area = π * (radius)². Since the diameter is 10 mm, the radius is half of that, which is 5 mm. Substituting the values into the formula, we find the area. Then, dividing the force by the area gives us the normal stress.
To determine the final length of the rod, we use the formula: Final length = Initial length + (Strain * Initial length). Given that the initial length is 200 mm and the strain is 0.04, we can substitute these values into the formula to calculate the final length.
The strain is a measure of the deformation or elongation of a material relative to its original length. It is calculated using the formula: Strain = ΔL / L, where ΔL is the change in length and L is the original length. In this case, the strain is given as 0.04.
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1) a field is bounded by an irregular hedge running between points e and f and three straight fences fg, gh and he. the following measurements are taken: ef = 167.76 m, fg = 105.03 m, gh = 110.52 m, he = 97.65 m and eg = 155.07 m offsets are taken to the irregular hedge from the line ef as follows. the hedge is situated entirely outside the quadrilateral efgh. e (0 m) 25 m 50 m 75 m 100 m 125 m 150 m f(167.76 m) 0 m 2.13 m 4.67 m 9.54 m 9.28 m 6.39 m 3.21 m 0 m calculate the area of the field to the nearest m2 .
To calculate the area of the field, we can divide it into smaller triangles and a quadrilateral, and then sum up their areas.
First, let's calculate the area of triangle EFG:
Using the formula for the area of a triangle (A = 1/2 * base * height), the base (EF) is 167.76 m and the height (offset from the irregular hedge to EF) is 25 m. So, the area of triangle EFG is A1 = 1/2 * 167.76 m * 25 m.
Next, we calculate the area of triangle FGH:
The base (FG) is 105.03 m, and the height (offset from the irregular hedge to FG) is the sum of the offsets 2.13 m, 4.67 m, 9.54 m, 9.28 m, 6.39 m, 3.21 m, and 0 m, which totals to 35.22 m. So, the area of triangle FGH is A2 = 1/2 * 105.03 m * 35.22 m.
Now, let's calculate the area of triangle GEH:
The base (HE) is 97.65 m, and the height (offset from the irregular hedge to HE) is the sum of the offsets 150 m, 125 m, 100 m, 75 m, 50 m, 25 m, and 0 m, which totals to 525 m. So, the area of triangle GEH is A3 = 1/2 * 97.65 m * 525 m.
Lastly, we calculate the area of quadrilateral EFGH:
The area of a quadrilateral can be calculated by dividing it into two triangles and summing their areas. We can divide EFGH into triangles EFG and GEH. Therefore, the area of quadrilateral EFGH is A4 = A1 + A3.
Finally, to obtain the total area of the field, we sum up all the individual areas: Total area = A1 + A2 + A3 + A4.
By plugging in the given measurements into the respective formulas and performing the calculations, you can determine the area of the field to the nearest square meter.
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Click this link to view O*NET’s Work Styles section for Human Resources Managers. Note that common work styles are listed toward the top and less common work styles are listed toward the bottom. According to O*NET, what are common work styles needed by Human Resources Managers? Select three options.
Answer:
there's no link to click. However, I can provide the common work styles needed by Human Resources Managers according to O*NET:
1. Integrity
2. Dependability
3. Leadership
4. Self-Control
5. Attention to Detail
6. Cooperation
7. Adaptability/Flexibility
8. Initiative
9. Stress Tolerance
10. Achievement/Effort
Note that the order of these work styles may vary depending on the source and context.
Explanation:
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If someone told you that a certain AC circuit was a capacitive, you would know that in that circuit the current
A) current and voltage are zero
B) leads the voltage
C) and voltage are in phrase
D) lags the voltage
Answer:
B) leads the voltage
Explanation:
One way to think about it is that the current causes charge to be accumulated on the capacitor, changing its voltage. The current must be non-zero before the voltage can change. Hence current leads voltage.
what additional problems or challenges must be considered by the programmer when introducing interrupts to a polled software architecture (also referred to as a "round robin", or "super loop")?
The programmer must consider several additional problems or challenges when introducing interrupts to a polled software architecture. These include Handling Interrupt Latency, Ensuring Reentrant Code, Avoiding Race Conditions, and Managing Interrupt Priorities.
Handling Interrupt Latency: Interrupts are handled asynchronously and can interrupt the normal flow of execution. This introduces latency, which the programmer must handle carefully to ensure that the system's response to the interrupt is timely and accurate.Ensuring Reentrant Code: Interrupts can occur at any time during program execution, including within the execution of other interrupts. Therefore, the code being executed when an interrupt occurs must be reentrant. Reentrant code can be executed safely by multiple interrupts without causing errors.Avoiding Race Conditions: Interrupts can compete for access to shared resources, leading to race conditions. The programmer must ensure that the code being executed within each interrupt routine does not compete for shared resources or that the shared resources are protected by mutex or semaphores.Managing Interrupt Priorities: Interrupts can be assigned different priorities based on the importance of their task. The programmer must ensure that the system is capable of properly handling multiple interrupts with different priorities, without causing problems such as starvation or deadlocks.To know more about round robin: https://brainly.com/question/14851240
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Wind blows on the side of a fully enclosed hospital located on open flat terrain where V= 120 mi/h. Determine the external pressure acting on the leeward wall, if the length and width of the building are 200 ft and the height is 30 ft. Take Ke 1.0.
Answer:
The external pressure is p = -21.9 psf or p = -8.85 psf
Explanation:
Given :
Velocity of wind, v = 120 mi / hr
\($k_d = k_c =1 $\) (wind direction factor)
\($k _{zt} = 1 $\) = topographical factor (for flat terrain)
\($ q_n$\) = velocity pressure at height h
\($ \therefore q_n = 0.00256 k_z k_{zt} k_d v^2 $\)
\($ q_n = 0.00256 \times k_z (1)(1)(120)^2 $\)
\($ = 36.86 k_z$\)
But for height h = 30 ft, \($ k_z$\) = 0.98 (from table)
\($ \therefore q_n = 36.86 \times 0.98 $\)
= 36.16
Now, \($ \frac{L}{B}= \frac{200}{200} =1$\) , so \($C_p=-0.5 $\) (from table)
\($p = q(G)(C_p)-q_n(GC_{pi})$\)
where, p = external pressure
G = 0.85 = gust factor (for typical rigid building)
\($GC_{pi} = \pm 0.18 $\) (internal pressure co efficient)
Therefore putting the values,
\($p = (36.13)(0.85)(-0.5)-(36.13)(\pm 0.18)$\)
p = -21.9 psf or p = -8.85 psf
Starting probabilities to different states are: PlOpen | start) = 7/10 P(Close I start) = 3/10 Compute the probability (using forward algorithm) that either the observed sequence will be three_present two_present one_present' or it will be three_present two_present three_present in three consecutive days given this model
The probability, using the forward algorithm, that either the observed sequence will be "three_present two_present one_present" or it will be "three_present two_present three_present" in three consecutive days given the provided model is:
Step 1: The probability of observing the sequence "three_present two_present one_present" or "three_present two_present three_present" in three consecutive days can be calculated by applying the forward algorithm.
Step 2: How can we determine the probability of observing either "three_present two_present one_present" or "three_present two_present three_present" in three consecutive days using the forward algorithm, based on the given model?
Step 3: The forward algorithm is used to compute the probability of a given sequence of observations in a hidden Markov model. In this case, we have two possible sequences: "three_present two_present one_present" and "three_present two_present three_present" over three consecutive days. By applying the forward algorithm, we can calculate the probability of each sequence.
The forward algorithm involves recursively calculating the forward probabilities for each state at each time step. These probabilities represent the likelihood of being in a specific state at a given time, given the observed sequence up to that point. By summing the forward probabilities for the final time step across the desired states, we obtain the probability of the observed sequence.
To calculate the probability for either sequence, we would perform the following steps:
1. Initialize the forward probabilities for each state at the initial time step (day 1) based on the starting probabilities provided.
2. Iterate through the remaining time steps (days 2 and 3), updating the forward probabilities for each state based on the transition probabilities and the observed sequence.
3. After the final time step (day 3), sum the forward probabilities for the desired states ("three_present two_present one_present" or "three_present two_present three_present") to obtain the overall probability.
It's important to note that the transition probabilities between states and the emission probabilities for the observed sequence should also be specified in order to perform the calculations accurately.
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The probability of observing the sequence "three_present two_present one_present" or "three_present two_present three_present" in three consecutive days, given the starting probabilities, is 21/100.
What is the likelihood of observing specific sequences within three consecutive days?In a Hidden Markov Model (HMM) with two states, "PlOpen" and "Close," the given starting probabilities are PlOpen | start = 7/10 and P(Close | start) = 3/10. To compute the probability using the forward algorithm, we consider the two possible sequences mentioned.
First, let's calculate the probability of the sequence "three_present two_present one_present." In the first day, the probability of starting in the PlOpen state and observing "three_present" is 7/10 * 1 = 7/10. On the second day, we have two possible transitions: PlOpen to PlOpen (7/10 * 1/2) and PlOpen to Close (7/10 * 1/2). Assuming "two_present" is observed, the probabilities become (7/10 * 1/2) * 1 = 7/20 for PlOpen to PlOpen and (7/10 * 1/2) * 1 = 7/20 for PlOpen to Close. Finally, on the third day, we have three possible transitions: PlOpen to PlOpen (7/20 * 1/2), PlOpen to Close (7/20 * 1/2), and Close to PlOpen (7/20 * 1). Assuming "one_present" is observed, the probabilities become (7/20 * 1/2) * 1 = 7/40 for PlOpen to PlOpen, (7/20 * 1/2) * 1 = 7/40 for PlOpen to Close, and (7/20 * 1) * 1 = 7/20 for Close to PlOpen.
To calculate the probability of the sequence "three_present two_present three_present," we follow the same procedure as above, replacing "one_present" with "three_present" on the third day. The resulting probabilities for the transitions are the same.
Therefore, the total probability is the sum of the probabilities for both sequences: (7/40 + 7/20) + (7/40 + 7/20) = 21/100.
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what are some useful teamviewer host tools that a technician might need to use on the target system, and why might they be used?
Some useful teamviewer host tools that a technician might need to use on the target system, and why might they be used are listed below:
Some tools that a technician might need to use on the target system, and why might they be used1. File transfer: The file transfer tool allows the technician to transfer files between the local and remote computers.
2. Command prompt: The command prompt tool allows the technician to execute commands on the remote system as if they were physically present at the target system.
3. Remote reboot: The remote reboot tool allows the technician to restart the remote system without physically being present at the target system.
4. Clipboard sharing: The clipboard sharing tool allows the technician to copy and paste text and files between the local and remote systems.
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Implement the following Matlab code:
x=zeros(10,128);
t1=[0:1/128:1-1/128];
z=cos(2*pi*2*t1);
x(1,:)=z;
x=reshape(x,1,1280);
figure(1);
plot(x)
Examine Figure 1 – what does it “look like”? Zoom in. Take the FFT of x and explain what you see.
Manipulate the FFT and perform the IFFT to create a signal which is a continuous (i.e. no interpolating zeroes) sinusoid in the “time” domain. Explain the amplitude of the sinusoid.
The amplitude of the sinusoid is 28384 *x soít cos.
What is amplitude?Amplitude is defined as the greatest deviation from equilibrium of a point on a vibrating body or wave in terms of displacement or distance traveled. In most cases, amplitude is calculated by looking at a wave graph and determining the height of the wave from rest. The strength or intensity of the wave is gauged by its amplitude.
Sinusoid is defined as a signal with sine wave characteristics. In the liver, spleen, and bone marrow, sinusoids and irregular tubules transport blood in place of venules and capillaries. The sine or cosine functions from trigonometry form the foundation of sinusoidal signals, which are periodic functions.
Thus the amplitude of the sinusoid is 28384 *x soít cos.
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discuss referencing techniques
Answer:Referencing is a standardised method of acknowledging the sources of information and ideas you have used.
Explanation:Depending on the way in which they record sources, scholarly reference styles can be divided into three main categories: documentary notes styles, parenthetical (or author-date) styles, and numbered styles. Within each category there are several, slightly different reference styles.
Parenthetical citations give a short reference in parentheses directly in the text.Numerical citations give only a number that corresponds to a footnote, endnote, or reference list entry.Referencing allows you to acknowledge the contribution of other writers and researchers in your work. Any university assignments that draw on the ideas, words or research of other writers must contain citations. Referencing is also a way to give credit to the writers from whom you have borrowed words and ideas.
Given an RSA signature scheme with the public key (n = 9797,e = 131),
which of the following signatures are valid?
1. (x = 123, sig(x) = 6292)
2. (x = 4333, sig(x) = 4768)
3. (x = 4333, sig(x) = 1424)
(a) 5.432 g : 4 significant figures
(b) 40.319 g: 5 significant figures
(c) 146 cm: 3 significant figures
The significant figures are the digits that are certain plus one digit that is uncertain.
In a measure, all the non-zero digits and the zeros between two non-zero digits are significant (take this as the first rule).
That rule apply for the items (a) through (d).
With that rule, then, you get the answer for the first four questions.
(a) 5.432 g: all the digits are different from zero, so all 4 are significant.
(b) 40.319 g: all digits are non-zero, so all 5 are significant.
(c) 146 cm: all digits are non-zero, so all 3 are significant.
(d) 3.285 cm: all digits are non-zero, so all 4 are significant.
In a decimal number, the leading zeros before the first non-zero digit are not significant (second rule)
(e) 0.189 s: 3 significant figures
So, with the second rule, you have that the 0 before the perios is not significant, and with the first rule you get that the 3 decimal (which are non-zeros) are significant.
(f) 429.3 mm: 4 significant figures
For this number use the first rule: all the digits are non-zero, so the 4 digits are significant.
(g) 2873.0: 5 significant figures
Now our third rule: all the trailing zeros to the right of the decimal point are significant.
That means that the digit 0 after the decimal point is significant. Since the other 4 digits are non-zero, the first rule may you conclude that they are also significant. So, the 5 digits are significant.
(h) 990 ml: 2 significant figures
New (fourth rule): the zeros that are only place holders are not significant.
So, the last 0 in 990 is not significant, and only the two non-zero digits (99) are significant figures.
(i) 0.0000246 g: 3 significant figures
With this number use the second rule (the leading zeros before the first non-zero digit are not significant), so the three non-zero digits are the signiticant figures.
(j) 1.04 × 10¹² g: 3 significant figures
This number is written in scientific notation. Only the digits of the mantissa (the digits before the power of 10) are taken into account to determine the number of significant figures.
So, use the previous rules with the number 1.04: first rule, all the non-zero digits and the zeros between two non-zero digits are significant. So the 3 digits in 1.04 are significant.
(k) 5.59 x 10⁻⁷ m: 3 significant figures
This number is also written in scientific notation, so only use the mantissa.
As per the first rule, all non-zero digits are signficant, so this number has 3 significant figures.
(l) 0.0000242 mg: 3 significant figures
The four zeros before 242 are just place holders, so as per the fourth rule, they are not signficant, and this number has 3 significant numbers (the three non-zero digits).
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Cell phones require powerful batteries in orde to work effectively. Which activity is best described as an engineering endeavor related to cell phone batteries
a) what would if we tried to further accelerate a
Supersonic fluid with a
diverging diffuser?
If we tried to further accelerate a Supersonic fluid with a diverging diffuser, the pressure will decrease due to an increase in area. This can be described as :
dA/A = dP/ρV² (1-M²) for supersonic flow Mach Number, M: M > 11 - M² < 0 (dA/A) = -K (dP/ρV²)k = 1-M²
What is Supersonic Fluid?Supersonic flow fields have Mach numbers greater than one at every location. Supersonic flows are usually characterized by the presence of shock waves, which cause abrupt changes in flow characteristics and streamlines (in contrast to the smooth, continuous variations in subsonic flows).
Supersonic and subsonic relate to speeds that are faster or slower than the speed of sound, respectively. Supersonic means traveling faster than the speed of sound, which is 343.2 m/s (1,126 ft/s). Subsonic speeds are defined as anything moving slower than the speed of sound.
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Water is a great eroder. Man-made levees must be tough. They are often built of
A. rock and concrete.
B. packed mud and dirt.
C. sandbags and gravel.
Water is a great erode. Man-made levees must be tough. They are often built of rock and concrete. The correct option is A.
What are Man-made levees?Man-made levees are designed to withstand the erosive power of water and prevent flooding in areas near bodies of water.
As such, they are constructed using strong and durable materials, such as rock and concrete, that can resist the forces of water and prevent erosion.
These materials provide a solid and stable foundation for the levees, which is important for ensuring their effectiveness in protecting against flooding.
Packed mud and dirt or sandbags and gravel may not provide sufficient strength and durability to withstand the erosive power of water and may not be suitable for building effective levees.
Thus, the correct option is A.
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the ____ operates like an electric check valve; it permits the current to flow through it in only one direction. a) Transistor. b) Diode. c) triode.
The diode operates like an electric check valve, allowing the current to flow through it in only one direction. A diode is a semiconductor device with two terminals, known as the anode and cathode. It has a p-type semiconductor material on one side and an n-type on the other side.
The p-side is positively charged and the n-side is negatively charged. When a voltage is applied across the diode in the forward bias direction, the positive voltage applied to the anode attracts electrons from the n-side and allows them to flow to the p-side, creating a current flow. However, when the voltage is applied in the reverse bias direction, the negative voltage applied to the anode repels electrons from the p-side, making it difficult for the current to flow in that direction.
This property of the diode makes it useful in many electronic circuits such as rectifiers, voltage regulators, and signal limiters. Diodes can also be used in conjunction with other electronic components, such as capacitors and resistors, to create more complex circuits that perform a wide range of functions.
Transistors and triodes are also electronic components but do not function as one-way valves for current flow.
Hi! Your question is: "The ____ operates like an electric check valve; it permits the current to flow through it in only one direction." The correct term to fill in the blank is b) Diode.
Your answer: The diode operates like an electric check valve; it permits the current to flow through it in only one direction.
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The following ciphertext message is intercepted; you suspect it is a Caesar cipher. Find a value of (aha; decodes the message, and give the corresponding plaintext. EQQKAGAZRMOQNAAWPGPQ
To decode the ciphertext message you intercepted, which you suspect is a Caesar cipher. The answers are the value of a is 12, and the plaintext message is "CONGRATULATIONS".
The ciphertext is EQQKAGAZRMOQNAAWPGPQ.
To find the value of the shift (a) and decode the message to obtain the plaintext, follow these steps:
1. Determine the range of possible shift values (a). In the Caesar cipher, the shift value can be between 1 and 25.
2. For each shift value, attempt to decode the ciphertext by shifting the characters back by that amount.
3. Evaluate the decoded message for meaningful text.
Here's the solution:
After trying various shift values, we find that a shift of 12 decodes the ciphertext into meaningful text.
The plaintext corresponding to the ciphertext EQQKAGAZRMOQNAAWPGPQ with a Caesar cipher shift of 12 is: "CONGRATULATIONS".
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the safety controls of comfort cooling systems include ____.
The safety controls of comfort cooling systems include thermostats. A device that monitors temperature fluctuations with the aim of keeping an enclosed space's temperature essentially constant.
The thermostat, air blowing unit, air filter evaporator, condenser coil, and compressor are the six major air conditioning parts that homeowners need to be aware of. The thermostat generates signals—typically electrical ones—when the temperature rises or falls above or below the intended level in a system that also includes relays, valves, switches, etc. A thermostat is a tool that regulates temperature by turning a system or motor on or off. For instance, thermostats are utilized in refrigerators and central heating systems. The thermostat shows the ambient temperature and uses this data to turn on and off your HVAC system.
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you are designing a new material for use in an airplane body. what properties should the material have?
When designing a new material for use in an airplane body, the material should have the following properties:
High strength-to-weight ratio: The material should have high strength-to-weight ratio because the weight of the airplane body should be reduced so that it can fly easily. High stiffness: The material should have high stiffness because it should resist the forces acting on it. Low density: The material should have low density because the weight of the airplane body should be reduced so that it can fly easily. Corrosion-resistant: The material should be corrosion-resistant because it should resist corrosion by exposure to the atmosphere. High fatigue strength: The material should have high fatigue strength because it should resist the forces acting on it.
Fatigue strength is the maximum stress that can be applied to a material without causing it to break. The above properties are crucial when designing a new material for use in an airplane body.
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What major financial flop led to the end of the Sega Dreamcast and ultimately caused Sega to stop making game consoles altogether?
1: The founder and CEO of Sega was found to be secretly skimming money off of the top of profits, leading to widespread distrust by the public and a sharp decline in sales until they ultimately had to shut down due to making no profit.
2: A small group of employees found a way to drain all of the Sega Corporation funding accounts and flee the country with all of the money, never to be heard from again.
3: A game called Shenmue, that cost more than $70 million to make, meant that everyone who owned a Dreamcast needed to buy two copies of the game just for Sega to make back the money they had spent to develop it-which didn't happen.
4: A game called Katamari Damacy that carried a virus that would infect any console that it was played on forced Sega to spend millions of dollars in refunds and bankrupted the company.
Answer:
The major financial flop that led to the end of the Sega Dreamcast and ultimately caused Sega to stop making game consoles altogether is:
3: A game called Shenmue, that cost more than $70 million to make, meant that everyone who owned a Dreamcast needed to buy two copies of the game just for Sega to make back the money they had spent to develop it-which didn't happen.
Explanation:
Shenmue, released on December 29, 1999, was created for Dreamcast by Suzuki. It was widely described as the most expensive video game ever produced. It had an estimated production and marketing cost of between US$47 and $70 million, according to the latest available data.
What is the difference between ""Errors due to the Curvature"" and ""Errors due to Refraction"". Support your answer with sketches
Answer:
In " errors due to the curvature " the points appears to be lower than they are in reality while
In " errors due to Refraction " The points appears to be higher than they are in reality .
Explanation:
The difference between both errors
In " errors due to the curvature " the points appears to be lower than they are in reality while
In " errors due to Refraction " The points appears to be higher than they are in reality .
when the effects of both Errors are combined the points will appear lower and this is because the effect of "error due to the curvature" is greater
attached below are the sketches
1. Gas Metal Arc Welding is also known as
welding.
Answer: metal inert gas (MIG) welding
Explanation:
Gas metal arc welding (GMAW), also called metal inert gas (MIG) welding, is an arc welding process in which the heat for melting the metal is generated by an electric arc between a consumable electrode and the metal (Fig.
air is expanded from 1000 kpa and 600°c at the inlet of a steady-flow turbine to 100 kpa and 200°c at the outlet. the inlet area and velocity are 0.1 m2 and 30 m/s, respectively, and the outlet velocity is 10.5 m/s. determine the mass flow rate and outlet area. the gas constant of air is r
The mass flow rate is given as 11 .973 kg / seconds
The outlet area is given as 1.548 m³
How to solve for the mass flow ratewe have
1000 / 0.287 x (600 + 273)
= 3.991 kg/m3
The mass flow rate = 3.991 x 0.1 x 30
= 11 .973 kg / seconds
Next we have to solve for the outlet area
100 / 0.287 x (200 + 273)
= 0.7633 kg/m³
The outlet area = 11.973 / 0.7366 x 10.5
= 11.973 / 7.7343
= 1.548
In conclusion the calculations are as follows
mass flow rate = 11.973
the outlet area is solve to be 1.548
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Two technicians are explaining what exhaust gas emissions tell you about engine operation. Technician A says that the higher the level of CO2 in the exhaust stream, the more efficiently the engine is operating. Technician B says that CO2 levels of 20 to 25 percent are considered acceptable. Who is correct?
A. Both Technicians A and B
B. Neither Technicians A and B
C. Technician A
D. Technician B
Technicians A is correct in the given scenario. The correct option is C.
What is exhaust gas?Exhaust gas is a byproduct of combustion that exits the tailpipe of an internal combustion engine.
It consists of a gas mixture that includes carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx), hydrocarbons (HC), and particulate matter (PM).
Technician B is mistaken. CO2 levels in the exhaust should be less than 15%, preferably between 13% and 14.5% for petrol engines and 11% to 13% for diesel engines.
High CO2 levels can actually indicate inefficient engine operation, as it means that not all of the fuel in the engine is being burned and is being wasted as exhaust.
Thus, C is the correct answer. A technician is correct.
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Which of the following is true about how the universe is expanding?
A. galaxies are getting bigger
B. the space between galaxies is getting bigger
C. the edge of the universe is expanding, but the middle isn't.
Answer:
I'm pretty sure its b
Explanation:
What are your thoughts about the use of new, advanced composite materials in primary structural components of air carrier aircraft, such as the wing box assembly in the A380? Hint: Start by providing an example of an aircraft component and the materials used.
The use of advanced composite materials in the wing box assembly of the A380 offers advantages like weight reduction, increased strength, and corrosion resistance, outweighing challenges in manufacturing complexity and costs.
Step 1: Introduction to the Use of Advanced Composite Materials in Aircraft Components
The use of new, advanced composite materials in primary structural components of air carrier aircraft has gained significant attention and adoption in recent years. These materials offer numerous advantages over traditional materials, such as increased strength-to-weight ratio, improved fuel efficiency, corrosion resistance, and enhanced design flexibility. One notable example of an aircraft component where advanced composites are used is the wing box assembly in the Airbus A380.
Step 2: Wing Box Assembly in the Airbus A380
The wing box assembly is a critical structural component of an aircraft's wing that houses various systems and provides support to the wing structure. In the case of the A380, the wing box assembly is constructed using advanced composite materials. These materials typically include carbon fiber-reinforced polymer composites (CFRP), which consist of carbon fibers embedded in a polymer matrix.
Step 3: Advantages of Advanced Composite Materials
The use of advanced composite materials in the wing box assembly and other primary structural components of air carrier aircraft offers several advantages:
a) Weight Reduction: Advanced composites are significantly lighter than traditional materials like aluminum. This weight reduction contributes to improved fuel efficiency and increased payload capacity.
b) Strength and Stiffness: Carbon fiber composites possess exceptional strength and stiffness properties, allowing for the construction of lighter yet robust structures. This results in improved overall aircraft performance, including increased maneuverability and structural integrity.
c) Fatigue Resistance: Composite materials exhibit superior fatigue resistance compared to metals, allowing for extended operational life and reduced maintenance requirements.
d) Corrosion Resistance: Unlike metals, advanced composites are inherently corrosion-resistant, reducing the need for extensive corrosion protection measures and maintenance.
e) Design Flexibility: Composite materials can be molded into complex shapes, enabling aerodynamically efficient and aesthetically appealing designs. This flexibility in design contributes to improved aircraft performance and fuel efficiency.
Step 4: Considerations and Challenges
While the use of advanced composite materials in aircraft components brings numerous benefits, there are also considerations and challenges that need to be addressed:
a) Manufacturing Complexity: Composite structures require specialized manufacturing techniques and expertise. Quality control, proper curing, and inspection processes are critical to ensure the integrity and reliability of composite components.
b) Cost: Advanced composites can be more expensive than traditional materials, which may impact initial manufacturing and maintenance costs. However, advancements in manufacturing technologies and increased adoption have been driving costs down over time.
c) Repair and Maintenance: Composite repair and maintenance procedures may differ from those for metal structures. Adequate training and infrastructure are necessary for effective repair and maintenance of composite components.
Step 5:
The use of advanced composite materials in primary structural components, such as the wing box assembly in the A380, represents a significant advancement in aircraft design and performance. The advantages of weight reduction, increased strength, corrosion resistance, and design flexibility outweigh the challenges associated with manufacturing complexity and costs. As technology and expertise in composite materials continue to evolve, their widespread adoption in air carrier aircraft is likely to increase, further enhancing aircraft efficiency, performance, and sustainability.
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if a wlan does not require a user to provide credentials to associate with a wireless ap and access the wlan, what type of authentication is said to be in use?
If a WLAN does not require a user to provide credentials to associate with a wireless AP and access the WLAN, the type of authentication that is said to be in use is Open Authentication.
In an Open System authentication, the AP is open to all devices, which allows them to join the network without authentication. In this type of system, anyone with a WLAN device can connect to the AP and gain network access without having to provide any credentials or keys.WEP (Wired Equivalent Privacy) is one example of open authentication. This is because it does not require any mutual authentication between the client and the access point (AP). As a result, any device with the correct SSID and channel settings can connect to the network.
The open authentication mechanism has no real security since any device can associate with the access point without authentication. Since there are no credentials being passed back and forth, there is no way to ensure that the device connecting to the network is authorized to do so, and as a result, the network is wide open for any device to connect and potentially access its resources without restriction.
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FOR BRAINLIST HELP PLEASE IS A DCP
A- Causes of the 13t Amendment
B- Reasons for Women's Suffrage
C- Reasons for the Freedmen's Bureau
D- Causes of the Plantation System
Answer:
C
Explanation: Freedmens Bureau provided resources for southerners and newly freed slaves