For a PTC with a rim angle of 80º, aperture of 5.2 m, and receiver diameter of 50 mm,
determine the concentration ratio and the length of the parabolic surface.

The speed of water in the reduced-size pipe is 10 m/s, and the pressure depends on the density of water.

To determine the speed and pressure of water in the new, reduced-size pipe, we can apply the principle of continuity and Bernoulli's equation.

According to the principle of continuity, the mass flow rate of water remains constant in a closed system. Therefore, the product of the water's velocity and the cross-sectional area of the pipe remains constant.

Let's denote the initial diameter of the first section of pipe as D1 and the diameter of the reduced pipe as D2 (which is half of D1).

Since the cross-sectional area is directly proportional to the square of the diameter, we have:

A1/A2 = (D1^2)/(D2^2) = 1/4

Now, let's apply Bernoulli's equation between the two sections of the pipe:

P1 + (1/2)ρV1^2 = P2 + (1/2)ρV2^2

where P1 and P2 are the pressures at the respective sections, ρ is the density of water, V1 is the initial velocity, and V2 is the velocity in the reduced pipe.

Since the pipe is horizontal, we can neglect the height term in Bernoulli's equation.

Given:

V1 = 2.5 m/s

P1 = 160 kPa (which can be converted to Pa: 160,000 Pa)

D2 = (1/2)D1

First, let's solve for V2 using the principle of continuity:

A1V1 = A2V2

(D1^2)(2.5) = (D2^2)V2

(D1^2)(2.5) = [(1/4)D1^2]V2

V2 = 10 m/s

Now, substitute the known values into Bernoulli's equation to solve for P2:

P1 + (1/2)ρV1^2 = P2 + (1/2)ρV2^2

160,000 + (1/2)(ρ)(2.5^2) = P2 + (1/2)(ρ)(10^2)

160,000 + (1/2)(ρ)(6.25) = P2 + (1/2)(ρ)(100)

160,000 + 3.125ρ = P2 + 50ρ

160,000 = P2 + 46.875ρ

P2 = 160,000 - 46.875ρ

The pressure in the reduced-size pipe, P2, depends on the density of water. To determine the exact value of P2, we would need to know the density of water.

In summary, the speed of water in the reduced-size pipe is 10 m/s, and the pressure depends on the density of water.

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Answer:

359.046 Ib

Explanation:

density = m / v ---- ( 1 )

m = mass

v = volume = l * b * h

Given data :

density = 30 Ib / ft^3

l = 2 inches = 0.1667 ft

b = 8 inches = 0.6667 ft

h = 11 ft

v ( volume ) = 0.1667 * 0.6667 * 11 = 1.22 ft^3

back to equation 1

m = 30 * 1.22  = 36.6 Ib

Actual weight ( F ) = m * g

                              = 36.6 * 9.81 = 359.046 Ib.

Answer:

For most applications, it is simple, dependable, efficient, and straightforward to apply - a simple trigger signal may be provided, with appropriate processing if necessary. This implies that an appropriate trigger signal may be generated using other electrical circuits and then applied to the SCR.

Explanation:

The color of white light bends the most when it is refracted by a prism is green after the violet.

The shorter the wavelength of the mild, the greater its miles refracted. As a result, crimson mild is refracted the least, and violet mild is refracted the most - inflicting the colored mild to unfold out to shape a spectrum.

The hues of white mild withinside the order of lowering wavelength are crimson orange-yellow inexperienced blue indigo violet. Fro the listing we are given withinside the alternatives inexperienced has the shortest wavelength than others. Therefore inexperienced will bend the most.

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Answer:

Technician B

Explanation:

Technician A is incorrect

The two technicians A and B gave a statement about the airbag being replaced in a vehicle. Technician B is correct.

An airbag is an occupant restraint device for cars that uses a bag that, in the event of a collision, instantly inflates and deflates. It is made up of an impact sensor, an inflating module, a flexible fabric bag, and an airbag cushion.

When a collision occurs, airbags, which are inflatable cushions installed into cars, shield the occupants from being struck by the inside of the car or by outside objects like other cars or trees.

Without an airbag, you run the risk of suffering more serious injuries from blunt impact trauma. This frequently happens to passengers in cars where the airbag did not deploy.

Therefore, Technician B is correct.

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The bending moment at point C, where the load P is applied, is Pl/4

To find the bending moment at point C, where the load P is applied on a beam with equal lengths from points B to C and C to A (both l/2), follow these steps:

1. Identify the given values:
  Load, P
  Length from B to C, l/2
  Length from C to A, l/2

2. Determine the reactions at supports A and B:
  Since the beam is symmetric and the load is applied at the midpoint, the reactions at supports A and B will be equal. To find the reactions, use the equilibrium equation:
  ΣFy = 0 (sum of vertical forces equals zero)
  RA + RB - P = 0

  Since the beam is symmetric, the reactions will be:
  RA = RB = P/2

3. Calculate the bending moment at point C:
  To find the bending moment at point C, consider either the left or right half of the beam. We'll use the left half (from point A to C) in this example.

  Bending moment at C = RA * (l/2)

  Since RA = P/2,
  Bending moment at C = (P/2) * (l/2)

4. Simplify the equation:
  Bending moment at C = Pl/4

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For tornado strike probabilities, it may not be necessary to have four-decimal-point accuracy.

A computer model might be used to study tornado strike probabilities for an organization located in central Oklahoma. These results may yield more accurate results but is four-decimal-point accuracy necessary?No, four-decimal-point accuracy is not necessary as it's impractical and often not required. Instead, it's best to strike a balance between precision and practicality. It's because too much precision may not result in significant differences in results and may even lead to errors.The need for accuracy depends on the application of the model. For instance, if the model is used to track satellite orbits, then more precision would be required. In contrast, for many other applications, a level of precision to the nearest hundredth or even thousandth of a percent is adequate.As such, the precision of the model should be matched to the degree of accuracy required by the intended use.

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A Turing machine is a theoretical machine that performs computations by reading and writing symbols on an infinitely long tape. It has a head that can read, write, and move left or right on the tape. A state diagram is a visual representation of a Turing machine that shows the states, transitions, and actions that it performs.

The Turing machine that accepts L can be designed as follows:

1. Start in state q0.
2. Read the first symbol of the input.
3. If the symbol is a or b, move right and go to state q1.
4. If the symbol is blank, move left and go to state q3.
5. In state q1, read the next symbol of the input.
6. If the symbol is a or b, write the same symbol, move right, and stay in state q1.

The state diagram of this Turing machine is shown below:

[state-diagram-of-a-Turing-machine-that-accepts-L-ww2]

In this diagram, each state is represented by a circle, and each transition is represented by an arrow with the input symbol, the symbol to write, and the direction to move.

The accept state is represented by a double circle. The transitions are labeled with the input symbol, the symbol to write, and the direction to move. The blank symbol is represented by a square.

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The compressive capacity of the member in the lateral bracing truss can be checked by considering the properties of the single angle member.

To calculate the compressive capacity of the member, we need to determine the slenderness ratio and compare it to the allowable slenderness ratio for the given grade of the angle member. The slenderness ratio is the ratio of the effective length of the member to its radius of gyration. First, let's calculate the radius of gyration (r) for the angle member. The radius of gyration can be calculated using the formula:

Where Ix and Iy are the moments of inertia about the x and y axes, respectively, and A is the cross-sectional area of the angle member. Next, we need to determine the effective length of the member. The effective length is dependent on the end conditions of the member. Since the specific end conditions are not provided in the question, I'll assume the member is pinned at both ends, resulting in an effective length equal to the actual length of the member. With the radius of gyration (r) and the effective length of the member .

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Matter can be defined as anything (physical object or body) that has mass and takes up space. Thus, the mass of a physical object measures the amount of matter the object contains.

In Science, water is an example of matter and it exists in three (3) main states or phases such as the following:

Based on scientific records and information, we know that all particles have various degrees of attraction to one another and this can be described as follows:

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Complete Question:

A student is investigating the particles in a glass window, raindrops on the window, and the air around the window. Assume the window, raindrops, and the air are all at 25 degrees Celsius. Identify the particle structure in each sample of matter.

Answer:

engine suspension brake and more

Explanation:

Answer:

Cool I think u should do Marvel first

Answer:

Dispersion modeling uses mathematical formulations to characterize the atmospheric processes that disperse a pollutant emitted by a source. Based on emissions and meteorological inputs, a dispersion model can be used to predict concentrations at selected downwind receptor locations

Explanation:

Technician A says if the EVAP system is purging vapors from the charcoal canister while the engine is idling, rough engine operation will occur. Technician B says the system should not have more than 0.5 liters of flow during the 240 seconds of an I/M 240 test.

The correct technician is Technician A.EVAP SystemThe EVAP system or Evaporative Emissions Control System is a vital part of modern automotive emission control systems. It prevents the emission of fuel vapors from escaping into the atmosphere. The system collects the vapors produced when the fuel evaporates in the fuel tank and stores them in a charcoal canister. When the engine runs, the system allows the vapors to be drawn into the engine and burned, producing fewer pollutants.

Technician A is correct in saying that if the EVAP system is purging vapors from the charcoal canister while the engine is idling, rough engine operation will occur. This is because the system relies on a tight seal to function correctly. Any leaks in the system will cause it to malfunction, leading to rough engine operation and poor fuel economy. Leaks can also lead to the check engine light illuminating and trigger a diagnostic trouble code (DTC).

Technician B is incorrect in saying that the system should not have more than 0.5 liters of flow during the 240 seconds of an I/M 240 test. The I/M 240 test is a state-mandated emissions test that checks for a vehicle's emissions performance. It is not a measure of the flow rate of the EVAP system. The flow rate of the EVAP system should be tested using a smoke machine to detect leaks in the system. Therefore, technician A is the correct technician.

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False. Commercial photographers attempt to produce images that will stand out and make a big impact on the public.

What is photographers?
A photographer often works as a freelancer, getting hired by different customers for specialised tasks. A client who hires a part-time or freelance photographer is expected to adhere to their every demand, as well as to put up a business strategy that makes options and price readily visible and understandable.

Photographers are in charge of the digital and physical development of their photos, as well as any or all editing that may be necessary. Simple cropping, adding/changing colours and shading, modifying sharpness and lighting, or deleting things to tidy up the image are all examples of editing techniques.

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The design brief that identified the problem of mine headgear is:

The structural structure above an underground mine shaft that facilitates the hoisting of machinery, persons, or supplies is known as a headframe (also called as a gallows frame, winding tower, hoist frame, pit frame, shafthead frame, headgear, headstock, or poppethead).

Mine headgear supports wheel systems that suspend winding cables that convey employees and ore up and down deep level shafts. These weird humanoid constructions have become the mining industry's defining emblem.

A miner's helmet consists of four major components:

Part 1: The hoist or winch is in a winding house. This component of the system is responsible for winding and unwinding the steel cable.

A motor and a control system are connected to the hoist.

When a steel cable unwinds from the winch, the mine cage and skips are lowered into the mine.

When the steel cable is wound up again, the mine cage and skips are elevated.

The sheave wheel is a pulley wheel that stands above the mining shaft in Part 2. The hoist rope travels over the sheave wheel and down the mine shaft.

The sheave wheel minimizes the mine cable's sliding friction.

Part 3: The head frame is the framework that holds the sheave wheel in place. When lifting the heavy mine cage, it must be robust enough to maintain the sheave wheel in place.

The head frame's left "legs" slope towards the hoist. This is due to the cable's strain dragging the entire frame in that direction. The sloping legs keep the head frame from tipping or collapsing.

Part 4: The cage and the jumps. Miners and equipment are transported up and down the mine in the cage. Skips are attached beside or beneath the cage.

Skips are used to transport ore and waste materials from mines.

A design brief, also called as a creative brief, is a program management document that identifies the scope, scale, and key aspects of your impending design project.

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Answer: 75,000 Hz

Explanation:

To calculate the frequency of the supply voltage, we need to use the formula:

frequency = 1 / time period

where the time period is the time it takes for one complete cycle of the waveform. For a sine wave, the time period is given by:

time period = 2π / angular frequency

where the angular frequency is the rate of change of the angle with respect to time and is given by:

angular frequency = 2π × frequency

Comparing the given voltage expression v = 240 sin (471,239t) V to the general form of a sine wave:

v = Vm sin(ωt + θ)

where Vm is the amplitude, ω is the angular frequency, t is time, and θ is the phase angle, we can see that the amplitude is 240 V, the angular frequency is 471,239 rad/s, and there is no phase angle (θ = 0).

Using the formula for angular frequency, we can find the frequency:

angular frequency = 2π × frequency

471,239 = 2π × frequency

frequency = 471,239 / (2π) ≈ 75,000 Hz

Therefore, the frequency of the supply voltage is approximately 75,000 Hz.

Hope this helps, :^)

The expansion angle is the angle formed between the diffuser inlet axis and the diffuser outlet axis. It is calculated as follows:θ = tan−1((A2/A1)^(1/n)-1) * (180/π)Where θ is the expansion angle, A1 is the cross-sectional area of the diffuser inlet, A2 is the cross-sectional area of the diffuser outlet, and n is the diffuser expansion coefficient.

A water diffuser is a hydraulic device that enlarges and diffuses a fluid stream. Water diffusers are primarily used to decrease the flow velocity of the fluid entering a pipe, channel, or other hydraulic structure, or to reduce the kinetic energy and momentum of the fluid.A water diffuser is constructed similarly to the one in the figure, which is designed to expand the volume flow rate while minimizing losses due to turbulence. The entrance to the diffuser has a volumetric flow rate that is less than the area of the diffuser outlet, so the fluid velocity at the entrance is higher than the fluid velocity at the outlet to satisfy the continuity principle.The expansion angle is the angle formed between the diffuser inlet axis and the diffuser outlet axis. It is calculated as follows:θ

= tan−1((A2/A1)^(1/n)-1) * (180/π)

Where θ is the expansion angle, A1 is the cross-sectional area of the diffuser inlet, A2 is the cross-sectional area of the diffuser outlet, and n is the diffuser expansion coefficient.

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The basic characteristic of the taxi service is that some taxi services are as extensive in range as either urban mass transit or commercial airlines.

A taxi is a cab that one hired b a single person or a group and they have a nonshared ride. The taxi service is found in various international destinations all over the world and especially at the airports, restaurants and hotels. Some place's taxi services are extensive and include the urban transits.

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Answer:

The answer is B) False

The expression that evaluates to True if s1 is greater than s2 is in the explanation part.

A string is sometimes implemented as an array data structure of bytes (or words) that contains a succession of elements, typically characters, using some character encoding. A string is generally thought of as a type of data.

The > operator, which compares two strings lexicographically based on their ASCII values, can be used to determine whether s1 is greater than s2, or vice versa.

Here is an illustration of an expression that evaluates to True if s1 exceeds s2:

s1 > s2

This expression returns True if s1 comes after s2 in alphabetical order, and False otherwise. .

Thus, this comparison is case-sensitive, so uppercase letters come before lowercase letters in ASCII order.

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The risk value of a risk whose impact score is 5, with a probability score is 5. The detection score is 25. The correct option is D.

The analysis's output, the risk score, is produced by dividing the Risk Impact Rating by the Risk Probability. It's the quantitative statistic that enables important individuals to decide about risks swiftly and with confidence.

Risk = probability x loss

The probability is 5

The impact score is 5

substituting the values in the equation

Risk = 5 x 5 = 25

Therefore, the correct option is D. 25.

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The question is incomplete. Your most probably complete question is given below:

A. 5

B. 1

C. 10

D. 25

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.

Answer:

Talcum powder!

Explanation:

How to find the source of an oil leak:

This method simply involves using Talcum Powder as a visual aid to help pinpoint the location of an oil leak,

so you use Talcum powder for small oil leak :]

Have a wonderful day!

When a neuron sends a signal, they create electrical events called actions potentials and chemical neurotransmitters.

Basically, a neuron is a fundamental units of the brain and nervous system. They are nerve cells responsible for: receiving sensory input from the external world, sending motor commands to the muscles, and for transforming and relaying electrical signals.

Being that neurons also communicates, they do so using electricals and chemicals means. So one neuron can communicate to the other via electrical events which are action potentials and chemical neurotransmitters.

An action potential causes one neuron to release chemical neurotransmitter which will help or hinder the other neuron from firing its own action potential.

In summary, neurons are essentially electrical devices having action potentials and chemical neurotransmitters as the fundamental units of sending signals or communicating with other neurons.

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Answer:

Timing Diagrams 15 pts. A 10 MHz clock that generates a 0 to 5V pulse train with a 30% duty cycle is connected to input X of a two input OR gate that has a 20nS propagation delay. The clock also goes to an inverter with a 10 ns propagation delay. The output of the inverter goes to the Y input of the OR gate. a) Draw the circuit. 2 pts. b) Plot the output of the clock for two cycles. Show times and voltages. 5 pts. c) On the same page as part (b) plot the output of the inverter. Show times and voltages. 3 pts. d) On the same page as parts (b & c) plot the output of the OR gate. Show times and voltages. 5 pts.

Answer:

System analysis can be defined as a deep analysis of a part of the structure of a module that has been designed before. System design means to make any module or a part of the structure from scratch and build it completely without estimation.

Explanation: