B. Power supplies are rated for efficiency based on watts. The efficiency of a power supply is determined by the ratio of its output power (in watts) to its input power (also in watts).
The lesser the effectiveness, the lower power is wasted as heat and the lesser the power given to the computer's factors. In addition to effectiveness, power inventories are rated for maximum affair power, which is generally expressed in watts. This standing represents the loftiest quantum of power that the power force can deliver to the computer's factors.
Other conditions, similar as voltage and amperage conditions for their different affair connections, may be assigned to power inventories. The maximum voltage and current that the power force can produce on each connection are indicated by these conditions. Ohms, on the other hand, are a resistance unit that's infrequently used to grade power force.
Learn more about power at
https://brainly.com/question/30562600
#SPJ4
Use the drop-down menu to answer the question. "Take a Closer Look" shows the Hubble telescope. Where is the Hubble telescope located?
Answer:
space
Explanation:
I got it right on E d i n u i t y
A space telescope called the Hubble was put into low-Earth orbit. Therefore, Hubble telescope is located in space.
What is Hubble telescope?A space telescope called the Hubble was put into low-Earth orbit around 1990 and continues to be in use today. Although it wasn't the initial space telescope, it is one of the biggest and most useful ones. It is famous for being both an essential scientific instrument and a public relations success for astronomy.
One of NASA's Big Observatories, the Hubble telescope being dedicated after astronomer Edwin Hubble. Hubble's targets are chosen by the Space Telescope Scientific Institute, which also handles the data processing, while the spacecraft is managed by the Goddard Space Flight Center at NASA. Hubble telescope is located in space.
Therefore, Hubble telescope is located in space.
To know more about Hubble telescope, here:
https://brainly.com/question/30246219
#SPJ6
The electric field 0.385 m from a very long uniform line of charge is 810 N/C
How much charge is contained in a section of the line of length 2.50 cm?
The charge contained in a section of the line of length 2.50 cm is 8.87 × 10⁻¹⁰ C.
The formula for electric field intensity of a line charge is given by:E= λ/2πε₀rwhere,λ is the linear charge density of the line.ε₀ is the permittivity of free space.r is the perpendicular distance of the point from the line charge.
Electric field intensity, E = 810 N/CandDistance, r = 0.385 mUsing the above formula, we can find the value of linear charge density of the line.λ = 2πε₀Erλ = 2 × π × 8.85 × 10⁻¹² × 810 × 0.385λ = 3.55 × 10⁻⁸ C/mLength of the section of the line, L = 2.5 cm = 0.025 mWe need to find the charge present in a section of the line of length 2.50 cm.Since the linear charge density of the line is 3.55 × 10⁻⁸ C/m,Charge in a section of the line of length 0.025 m = λLq = λLq = 3.55 × 10⁻⁸ × 0.025q = 8.87 × 10⁻¹⁰ C
To know more about charge visit:-
https://brainly.com/question/13871705
#SPJ11
A flux of 0.6Wb passes through a motor field pole with an area of 120 cm2. Calculate the flux density
We will have that the flux density will be:
\(^{}\rho=\frac{0.6Wb}{120cm^2}\Rightarrow\rho=5\cdot10^{-3}Wb/cm^2\)When a car goes around a curve of smaller and smaller radius, the centripetal force on it decreases. True or False?
The given statement, "When a car goes around a curve of smaller and smaller radius, the centripetal force on it decreases." is false.
The centripetal force required to keep a car moving in a curved path at a constant speed is directly proportional to the square of its velocity and inversely proportional to the radius of the curve.
As the radius of the curve decreases, the required centripetal force increases, not decreases. If the centripetal force on the car decreases, it would move out of its circular path, implying a decrease in velocity or radius of curvature.
To know more about the centripetal force, here
brainly.com/question/11324711
#SPJ4
A copper sphere with density 8900 kg/m3, radius 5. 00 cm, and emissivity e = 1. 00 sits on an insulated stand. The initial temperature of the sphere is 300 K. The surroundings are very cold, so the rate of absorption of heat by the sphere can be neglected.
a. How long does it take the sphere to cool by 1. 00 K due to its radiation of heat energy? Neglect the change in heat current as the temperature decreases.
b. To assess the accuracy of the approximation used in part A, what is the fractional change in the heat current H when the temperature changes from 300 K to 299 K?
a.The time it will take the sphere to cool by 1. 00 K due to its radiation of heat energy is 3225s.
b. The fractional change in the heat current H when the temperature changes from 300 K to 299 K is 3.18 %.
(a) The rate of cooling of a copper sphere is given by Newton's law of cooling, i.e.,
H = kA(Ts - T0),
where k is the heat-transfer coefficient, A is the surface area of the sphere, Ts is the temperature of the surroundings, and T0 is the temperature of the sphere.
Since the surroundings are very cold, Ts can be taken to be zero.The heat transfer coefficient k depends on the emissivity e of the sphere and is given by:
k = σeA,
where σ is the Stefan-Boltzmann constant.
The surface area A of the sphere is:
A = 4πr²,
where r is the radius of the sphere.
The heat transfer coefficient k is therefore k = 4πr²σe.
Substituting the values of the parameters for the copper sphere in the above equations, we get
k = 4π(0.05 m)²(5.67 × 10^-8 W/m²K⁴)(1) = 0.0562 W/m²K⁴
H = kA(Ts - T0) = 0.0562(4π(0.05 m)²)(300 K - 0) = 1.41 W.
The rate of cooling of the sphere is therefore 1.41 W.
The heat capacity C of the sphere is given by
C = mCp,
where m is the mass of the sphere and Cp is the specific heat capacity of copper.
The mass of the sphere is m = (4/3)πr³ρ= (4/3)π(0.05 m)³(8900 kg/m³) = 0.0118 kg
The specific heat capacity of copper is Cp = 385 J/kgK.
The heat capacity of the sphere is therefore
C = 0.0118 kg × 385 J/kgK = 4.54 J/K.
The time Δt taken for the sphere to cool by ΔT = 1.00 K is given by
Δt = ΔQ/H = CΔT/H = (4.54 J/K)/(1.41 W) ≈ 3225s.
(b) The fractional change in the heat current H when the temperature changes from 300 K to 299 K is given by
ΔH/H = (dH/dT)ΔT/H,
where ΔT is the change in temperature and dH/dT is the rate of change of the heat current H with temperature.
To find dH/dT, we differentiate the equation
H = kA(Ts - T0) with respect to T and get dH/dT = -kA = -4πr²σe.
Substituting the values of the parameters for the copper sphere, we get
dH/dT = -4π(0.05 m)²(5.67 × 10^-8 W/m²K⁴)(1) = -0.0449 W/K/m².
The fractional change in the heat current is therefore:
ΔH/H = (dH/dT)ΔT/H = (-0.0449 W/K/m²)(-1 K)/(1.41 W) = 0.0318 or 3.18%.
Learn more about Law of cooling:
https://brainly.com/question/13748261
#SPJ11
which labeled structure is in charge of editing and sorting incoming sensory stimuli, and controlling information entry into the cerebral cortex?
The central sulcus is located in front of the parieto-occipital sulcus, which divides the parietal lobe from the occipital lobe. The somatosensory cortex is contained within it, which is in charge of processing sensory data.
The cerebral cortex is located where in the brain?The top layer of your cerebrum is called the cerebral cortex. Your brain's largest region is called your cerebrum. Your brain is split into two parts by your cerebrum, which is known as hemispheres. A group of nerve fibers known as the corpus callosum holds the hemispheres together.
Which area of the spinal cord controls the processing of sensory information?Processing of sensory data is carried out by the posterior horn. To the skeletal muscles, the anterior horn transmits motor signals. The primary structure of the sympathetic division of the autonomic nervous system is the lateral horn, which is only present in the thoracic, upper lumbar, and sacral regions.
To know more about brain visit:-
https://brainly.com/question/29407892
#SPJ4
Describe how we know the plates once formed a supercontinent and how we know this.
*at least 10 sentences*
thank you so much for your help :)
Answer:
How did scientists “discover” Pangea and other supercontinents of the past?Nowadays, they can study the geologic record and use radioactive dating, seismic surveys, and other technologies to construct maps of how the world looked at various points in Earth's history.
body composition is?
Answer: body composition is the proportion of fat and non fat mass in your body.
Explanation:
Answer:
Body composition is the percentage of a body's weight
Explanation:
Body composition is the body's amount of fat relative to fat-free mass. Individuals with optimal body composition are typically healthier, move more easily and efficiently, and generally feel better.
A steel ball whose mass is 100 g is rolling at a rate of 2.8 m/sec. What is it’s momentum?
Answer:
The momentum of the steel ball is 0.28 kg m/sec.
Explanation:
The momentum of an object can be calculated using the formula: momentum = mass x velocity. In this case, the mass of the steel ball is 100 g, which is equivalent to 0.1 kg. The velocity of the ball is 2.8 m/sec. Plugging in the values into the formula, we get:
momentum = 0.1 kg x 2.8 m/sec
momentum = 0.28 kg m/sec
So the momentum of the steel ball is 0.28 kg m/sec.
how do units and direction describe position and motion?
Answer:
In science, motion is defined as a change in position. Position is the location of the object (whether it's a person, a ball, or a particle) at a given moment in time
Explanation:
Which of the following is not a method used to improve management of tropical rainforests? a. Increased logging b. Establishing special reserves for critical species c. Utilize better agricultural techniques d. The use of plantations Please select the best answer from the choices provided A B C D.
Increased logging is not a method used to improve management of Rainforests, the most beautiful natural ecosystems on the planet, are home to an incredible number of species, many of which are endangered. The tropical rainforests have suffered considerable destruction over the last few years.
Although efforts have been made to improve the management of tropical rainforests, many challenges still remain that threaten the conservation of these critical habitats.
Various strategies and methods have been employed to manage tropical rainforests. These techniques are intended to enhance the effectiveness of tropical forest management. Some of these methods include: Establishing special reserves for critical species, utilizing better agricultural techniques, and using plantations, are some of the most common methods used to improve the management of tropical rainforests. Nevertheless, increased logging is not a method used to improve management of tropical rainforests.In fact, overlogging is a significant cause of rainforest degradation.
learn more about Rainforests
https://brainly.com/question/12361143
#SPJ11
What causes seafloor spreading, subduction, and the movement of
tectonic plates?
Answer:
Subduction happens where tectonic plates crash into each other instead of spreading apart. At subduction zones, the edge of the denser plate subducts, or slides, beneath the less-dense one. The denser lithospheric material then melts back into the Earth's mantle. Seafloor spreading creates new crust.
Explanation:
hope it helps i do not know if that is the kind of answer you wanted or not but i tried
numeade how much work does a supermarket checkout attendant do on a can of soup he pushes 0.600 m horizontally with a force of 5.00 n?
Work done on the can of soup by the attendant is 3J.
A supermarket checkout attendant can do a considerable amount of work on a can of soup when they apply a force of 5.00 N over a distance of 0.600 m.
Work is defined as the product of force and displacement and is calculated by multiplying the force applied (5.00 N) by the distance moved (0.600 m). Therefore, the work done on the can of soup is:
5.00 N * 0.600 m = 3.00 Nm.
To understand this concept further, it's important to know that the unit of work, joule (J), is equal to 1 Newton meter (Nm). So, the 3.00 Nm of work done on the can of soup is also equal to 3.00 J.
The amount of work done on the can of soup by the checkout attendant is directly proportional to the amount of force and displacement applied. If either of the two is increased, then the total work done will increase.
For example, if the checkout attendant applies a force of 10.00 N over a distance of 0.600 m, then the total work done will be 10.00 N * 0.600 m = 6.00 Nm, or 6.00 J.
In conclusion, a supermarket checkout attendant can do a considerable amount of work on a can of soup when they apply a force of 5.00 N over a distance of 0.600 m. This work is equal to 3.00 Nm or 3.00 J.
To know more about work, refer here:
https://brainly.com/question/13662169#
#SPJ1
A football thrown by a professional quarterback goes farther than one thrown by a 10-year old. What Newton Law is this?
Answer:
2nd law of motion
Explanation:
Answer:
Newton's 2nd Law of Motion
Explanation:
The amount of force needed to make an object change its acceleration depends on the mass of the object. In other words, the amount of force thrown by a professional quarter-back has more acceleration from his mass.
what is the change in entropy o 100 g o water when it is heatedrom room temperature (20°c) to body temperature (37°c)? use c p ,m = 75.5 j k − 1 mol − 1 .
The change in entropy of 100 g of water when it is heated from room temperature to body temperature is 7180.93 J/K.
The change in entropy of 100 g of water when it is heated from room temperature (20°C) to body temperature (37°C) can be calculated using the equation:
ΔS = nCpΔT, where n is the number of moles,
Cp is the heat capacity at constant pressure,
and ΔT is the change in temperature.
First, we need to find the number of moles of water in 100 g.
The molar mass of water is 18.015 g/mol,
so we can calculate the number of moles as follows:
n = 100 g / 18.015 g/mol = 5.55 mol
Next, we can plug in the values for n, Cp,
and ΔT into the equation:
ΔS = (5.55 mol)(75.5 J K−1 mol−1)(37°C - 20°C)
ΔS = 7180.93 J/K
Therefore, the change in entropy of 100 g of water when it is heated from room temperature to body temperature is 7180.93 J/K.
Learn more about the temperature at https://brainly.com/question/11464844
#SPJ11
Light passing through a double slit
with separation d = 2. 42x10-5 m
creates its second maximum (m = 2)
at an angle of 2. 74 deg. What is the
wavelength of the light, IN
NANOMETERS?
(Hint: The answer will be between 400 and
700. ) (Unit = nm)
The wavelength of the light with specified separation and angle is calculated to be 578.45 nm.
The formula for light going through a double slit with separation is,
d = 2.42 × 10⁻⁵ m.
Line number m = 2
Angle θ = 2.74°
The wavelength is the separation between the peak and trough of two sound waves.
To find the wavelength, here we use the formula as,
sin θ = Line number × λ ÷ (distance)
where,
λ is wavelength
By substituting all the given values,
Sin (2.74°) = 2 × λ ÷ (2.42 × 10⁻⁵)
Rearranging the equation,
λ = [Sin (2.74°)×(2.42 × 10⁻⁵] ÷ (2)
λ = 578.45 nm.
Thus, wavelength λ of the light is calculated to be 578.45 nm.
To know more about wavelength:
https://brainly.com/question/12924624
#SPJ4
Fully describe or explain the solid state of matter. You should include at least 5 ways to characteristics or descriptors that prove a solid is a solid.
Answer:
Explanation:
The solid state is one of the 3 stages which matter undergoes in addition to the liquid and the gaseous state. Matter in it's solid state contains atoms which are closely packed, In this stage, matter exhibits the least amount of kinetic energy of all three stages hence hindering movement of its particles and exhibiting firmness and rigidity. Solids exhibits a regular arrangement of it's molecules which differs from the scattered nature of gaseous particles and slightly ordered nature of liquid molecules. Solids exhibits a defined volume , and shape with molecules held together by string attractive forces. Solids can change into liquid through melting or transform directly into gaseous state through sublimation.
2. a car traveling at 27 m/s runs out of gas while traveling up a slope. if the car coasts 85 m up the slope before starting to roll back down, what is the angle of incline?
The angle of inclination is 25.92°. The gravitational force is equal and opposite to the force component parallel to the inclined surface on a block placed on an inclined surface.
We can find the angle of inclination by using this information. This can be illustrated with the following formula;
mg sin θ = f
Here, m = Mass of car = 1,000 kg
g = acceleration due to gravity = 9.8 ms⁻²
sin θ = Opposite / Hypotenuse
= Height / Length
f = Force component parallel to slope
= Weight × sin θ
= mg sin θ
We'll need to utilize the following data:
Initial velocity, u = 27 m/s
Displacement, S = 85 m
Acceleration, a = -9.8 m/s²
By using the kinematic equation of motion, the time it takes to travel up the slope can be calculated;
v² = u² + 2as,
Where, v = Final velocity = 0 m/s
u = Initial velocity = 27 m/s
a = Acceleration = -9.8 m/s²
s = Displacement = 85 m.
After calculating for t, we can use this time value to calculate the angle of inclination by utilizing the aforementioned formula.
mg sin θ = f
Here, m = 1,000 kg,
g = 9.8 ms⁻²,
f = mgsinθsinθ = f / mg.
Now, solve for f, f = ma
Therefore, f = 1,000 kg × 9.8 m/s² × sin θ
The angle of inclination can now be calculated:
sinθ = f / mg
= 1,000 kg × 9.8 m/s² × sin θ / 1,000 kg × 9.8 m/s²
= sin θ= (u² - v²) / 2as
= (27 m/s)² / 2(-9.8 m/s²)(85 m)
= 25.92°
Therefore, the angle of inclination is 25.92°.
To learn more about gravitational visit;
https://brainly.com/question/3009841
#SPJ11
Jimmy the ant was 15cm south for some tasty leaves, he then runs 12cm north when he heard a bird. After the bird left, jimmy walks 10 cm east for a drink of water therthe finishes his trip by walking 6cm west, 3 cm north and 4 cm west. What was his total distance for the trip?
Jimmy's total distance for the trip was 16 cm.
1. Jimmy initially starts 15 cm south.
2. He runs 12 cm north when he hears a bird. This cancels out part of his initial distance, as he is moving in the opposite direction.
Net distance traveled so far: 15 cm - 12 cm = 3 cm south.
3. After the bird leaves, Jimmy walks 10 cm east for a drink of water.
Net distance traveled so far: 3 cm south + 10 cm east = 3 cm south, 10 cm east.
4. Finally, Jimmy walks 6 cm west, 3 cm north, and 4 cm west.
Net distance traveled: 3 cm south, 10 cm east - 6 cm west + 3 cm north - 4 cm west = 3 cm south, 3 cm north.
5. To calculate the total distance, we add up the absolute values of the distances traveled in each direction.
Total distance = |3 cm south| + |3 cm north| = 3 cm + 3 cm = 6 cm.
6. However, we also need to consider the distance traveled east.
Total distance = 6 cm + |10 cm east| = 6 cm + 10 cm = 16 cm.
7. Therefore, Jimmy's total distance for the trip is 16 cm.
Thus, Jimmy's total distance for the trip was 16 cm.
For more such questions on distance, click on:
https://brainly.com/question/26550516
#SPJ8
two charges are separated by a distance d, how would the strength of the electrostatic force change if the distance was reduced to a quarter?
If the distance between two charges is reduced to a quarter of its original value, the strength of the electrostatic force between the charges would increase by a factor of 16.
The electrostatic force between two charges is governed by Coulomb's law, which states that the force is directly proportional to the product of the charges and inversely proportional to the square of the distance between them.
Mathematically, the formula for the electrostatic force (F) is given as:
F = (k * q1 * q2) / d^2
Where k is the electrostatic constant, q1 and q2 are the magnitudes of the charges, and d is the distance between the charges.
If the distance is reduced to a quarter (d/4), the force can be expressed as:
F' = (k * q1 * q2) / (d/4)^2
= (k * q1 * q2) / (d^2 / 16)
= 16 * (k * q1 * q2) / d^2
Therefore, the strength of the electrostatic force increases by a factor of 16 when the distance between the charges is reduced to a quarter.
To learn more about electrostatic force click here
https://brainly.com/question/9774180
#SPJ11
Choose the correct order of the Sun's layers from the center outward. a. corona, chromosphere, photosphere, convective zone, radiative zone, core b. core, magnetosphere, heliosphere, atmosphere c. atmosphere, heliosphere, magnetosphere, core, solar wind d. corona, chromosphere, convective zone, photosphere, radiative zone, core e. core, radiative zone, convective zone, photosphere, chromosphere, corona
The correct order of the Sun's layers from the center outward is e. core, radiative zone, convective zone, photosphere, chromosphere, corona.
The chromosphere is the layer above the photosphere and below the corona. It is characterized by a reddish glow that is visible during a total solar eclipse.
The core is where nuclear fusion occurs, generating the Sun's energy. The radiative and convective zones transport this energy outward. The photosphere is the visible surface of the Sun, while the chromosphere is a layer above it, giving rise to solar phenomena. Finally, the corona is the Sun's outermost layer, characterized by its high temperature and plasma emissions.
Learn more about Sun's layers here:
https://brainly.com/question/15891213
#SPJ11
1. What are the different types of waves? Give examples of each type.
2.When light travels from air to glass, the light bends at the interface. What
is the reason for this phenomenon of bending of light at the interface of the
two media?
Answer:
See explanation
Explanation:
1) There are two main types of waves;
Mechanical waves and electromagnetic waves.
Mechanical waves usually require a medium for propagation, e.g sound, waves on a spiral spring, etc
Electromagnetic waves do not require a medium for propagation e.g microwaves, x-rays etc
2) The phenomenon is known as refraction. Refraction occurs at the boundary between two media because of the change in the speed of a wave as it moves from one medium to another.
The yangtze river is the world’s third-largest river and is used extensively as a trade avenue.
The yangtze river is the world’s third-largest river and is used extensively as a trade avenue. The given statement is true.
What is trade avenue?Trade avenue is a street or road used to do trading or exchange of goods.
Yangtze river is in China. It runs for 3900 miles right from the Tibetan Plateau to the estuary of East China near to Shanghai.
The Yangtze river is the world’s third-largest river and is used extensively as a trade avenue.
Thus, the statement is true.
Learn more about trade avenue.
https://brainly.com/question/3304374
#SPJ1
an object whose center of gravity is above its base of support will be unstable if a vertical line projected downward from the center of gravity falls outside of the base of support. true false
An object whose center of gravity is above its base of support will be unstable if a vertical line projected downward from the center of gravity falls outside of the base of support. This statement is true.
The center of gravity of an object is the point at which its weight can be considered to act. If the center of gravity is above the base of support, the object will tend to tip over or fall if the vertical line projected downward from the center of gravity falls outside of the base of support.
If the base of support is not wide enough to counteract this torque, the object will become unstable and tip over.
To know more about the center of gravity, here
brainly.com/question/21511900
#SPJ4
All moving objects don’t have momentum
A. True
B. False
Answer:
No
Explanation:
Some objects gain momentum.
Answer:
B. False
Hope you could understand.
If you have any query, feel free to ask.
how was youll day still in school by the way.
My day is alright! I just finished school for the day.. and I’m excited for the weekend! How was your day?
What are the similarities and differences between an electric bell and a circuit breaker
Answer:
differences and similarities
Explanation:
An electric bell is a mechanical or electronic bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound. whereas,
A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected.
1. A 500.0 g metal block absorbs 5.875 × 103 J of heat to raise its temperature by 50.0 K. What is the substance? Show your work.
Specific Heats of Selected Substances
Substance
C [J/(kg·K)]
Water (ice)
2,060
Iron
450
Aluminum
897
Gold
130
Copper
385
Silver
235
Ammonia (liquid)
4,700
Water (liquid)
4,180
Water (steam)
2,020
Lead
128
The name of the substance is silver based on the specific heat capacity value.
What is the specific heat capacity of the substance?The specific heat capacity of the substance is calculated by applying the following formula for heat capacity.
Q = mcΔθ
where;
m is the mass of the substancec is the specific heat capacity of the substanceΔθ is the change in temperaturec = Q / mΔθ
The specific heat capacity of the substance is calculated as;
c = (5875 J ) / ( 500 g x 50 )
c = 0.235 J/kgK
The substance that has the same specific heat capacity calculated above is silver.
Learn more about specific heat capacity here: https://brainly.com/question/16559442
#SPJ1
A cart moving at a constant speed of 25 m/s possesses 438 J of kinetic energy what is the mass?
A cart moving at a constant speed of 25 m/s possesses 438 J of kinetic energy, and the mass of the car is 1.6 kg.
What is kinetic energy?The energy an object has as a result of motion is known as kinetic energy. A force must be applied to an object to accelerate it. We must put in the effort to apply force. After the work is finished, energy is transferred to the item, which then moves at a new, constant speed.
What does "constant speed" refer to?Definition: When an object is moving at a constant speed—that is, its speed does not change—we say it is moving at a constant speed. steady rate
Given:
KE = 500 J
v = 25 m/s
The formula for Kinetic Energy is given:
KE = ½ mv²
where: KE - Kinetic Energy
m - mass
v - velocity
Substituting the value of KE and v in the formula,
500 J = (½)(m)(25 m/s)²
m = (500 J)(2)/(25 m/s)²
m = 1.6 kg
To know more about kinetic energy visit:
brainly.com/question/25959744
#SPJ1
wait how does this work hehe this is kinda fun lol yay