What function does a generator perform inside a power plant?A.The generator stores electrical energy for later use in homes and businesses.
B.The generator transforms the mechanical energy of the turbine into electrical energy.
C.The generator spins the turbine to create mechanical energy.
D.The generator spins the turbine to create electrical energy.
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that wasn't there before.
The power plant uses water, steam, or wind, to spin a turbine, and
the generator transforms the mechanical energy of the turbine into
electrical energy (which wasn't there before). (Choice-B)
B. The generator transforms the mechanical energy of the turbine into electrical energy.
Note that a generator uses mechanical energy to turn the wire loop in the magnetic field. This causes electric current to flow, creating electrical energy.
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What is the momentum of a 2-kg toy truck that moves at 10 m/s
Which of the following do waves carry?a) matter b) energy c) matter and energy d) the medium
Which one of the following types of electromagnetic radiation causes certain substances to fluoresce? A. Cosmic raysB. Ultraviolet rays(C. X rays)D. Infrared wavesA virtual image produced by a lens is always A. located in front of the lens.(B. located in the back of the lens.)C. smaller than the object.D. larger than the object.Reflecting telescopes are popular because they're A. more durable than a refracting telescope.B. more powerful than a refracting telescope.C. easier to build than a refracting telescope.(D. smaller than a refracting telescope.)The unit for measuring the rate at which light energy is radiated from a source is the A. lux.B. lumen.(C. candela.)D. AngstromA magnifying glass is an example of a _______ lens. A. plano-concave(B. plano-convex)C. double-concaveD. convergingmy answer is in ( ) and the answers are wrong please tell me the correct answer because i dont have a clue
Who is the president of kenya
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Answer:
2.00 m/s. Brainliest appreciated, you’re welcome
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Answer:
Boiling is the "rapid vaporization of liquid" when the liquid is heated at the point where the pressure of the vapor is equal to the pressure exerted by the atmosphere in the liquid.
So during the boiling, the vaporization of the water is also occurring but is a little bit more complex.
Some questions that you may ask your friend to differentiate those two phenomena are:
Which one is used to cook things like pasta? (boiling)
in which process, a liquid is transformed into a gas? (evaporation)
Which one includes the other? (boiling)
Final answer:
Evaporation and boiling are both phases changes, but they differ in the specifics of how and when they happen. These differences involve the temperature and location within the liquid where they occur, as well as the speed of the process.
Explanation:
To differentiate between evaporation and boiling, you could ask your friend these questions:
- Does the process occur at any temperature or only at a specific temperature (the boiling point)? (Evaporation can occur at any temperature while boiling only occurs at the boiling point.)
- Does the process occur throughout the liquid or only at the surface? (Boiling occurs throughout the liquid while evaporation happens only at the surface.)
- Is the process slow or fast? (Evaporation is a slow process while boiling is relatively quick.)
By asking these questions, your friend will be able to identify the key differences that separate evaporation from boiling.
Learn more about Evaporation vs Boiling here:
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Answer:
eah
I don't believe in destiny
I just do what's best for me
Don't listen to my enemies
They're just full of jealousy
Duh
This legacy
You gon see what's left of me
You gon see success in me
You ain't seen the rest of me
I just wanna be the best at what I know
Better than the rest just watch me grow
Put me to the test and watch me go
This is my quest, I'ma make it known
They call me obsessive, oh I know
Call me selective with my notes
Call me agressive with my flow
Call me offensive even though
Explanation:
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Hope it helped u!
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Answer:
Explanation:
speed of bat = 6 m/s
sound wave frequency emitted by bat = 30.0 kHz
as we know,
speed of sound (c)= 343 m/s
now frequency received by bat is equal to
hence the frequency hear by bat will be 29.98 Hz
Final answer:
The Doppler effect represents the change in frequency of a wave due to the motion of the source or the observer. In this case, the bat hears a higher frequency because of its motion towards the wall and the reflection of the sound wave back towards it.
Explanation:
The question is asking for the frequency the bat hears when it emits a sound and the sound is reflected back after hitting a wall. This is an example of the Doppler effect, where the frequency of a wave changes for an observer moving relative to the source of the wave.
Let's denote the emitted frequency as f (30.0 kHz), the speed of the bat as v (6.0 m/s), and the speed of sound in air as v_s (approximately 343 m/s).
First, when the bat emits the ultrasonic wave, the frequency of the wave will increase because of the motion of the bat towards the wall. The formula for observed frequency (f') when source and observer are getting closer is given by f' = f * (v_s + v) / v_s.
Next, the wall will reflect this wave back towards the bat. Since the wave is moving towards the bat, the frequency will increase again by the same factor, resulting in a final observed frequency of f'' = f' * (v_s + v) / v_s. When you substitute f' into this equation, you'll get: f'' = f * (v_s + v)^2 / v_s^2
Learn more about Doppler effect here:
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average volume= volume per atom.
density*mass per atom = volume per atom
1cm^3 / 7.87 gram * 9.27 *10^-26 kg /atom* 1000 gram / kg=
=1.178 * 10^-22 cm^3 per atom
Convert that to mass
1 cm^3 * (1 m / 100 cm)^3
average volume= 1.178 *10^-29 m^3 per atom
distance:
Volume of a cube is L^3
so L = (1.178*10^-29)^(1/3)
Half way through the cube is distance 1/2 L.
Second cube is 1/2 L
So distance between the center of 2 cubes = L
=2.28 *10^-10 m