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loris [4]
2 years ago
12

A coal - fired power station produces 100MJ of electrical energy when it is supplied with 400MJ of energy from its fuel. The eff

iciency of the power station is ______
Physics
1 answer:
Alexus [3.1K]2 years ago
8 0

Answer:

100 divide by 400 times 100 percent

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Please Help On These 2 Questions!!!!! I severely need help!!!!!!
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3. In a uniform electric field, the equation for the magnitude of the magnetic field is E=(V/d). V= voltage d= distance. If the magnetic field magnitude is constant , as stated in your problem, then the voltage must stay the same otherwise the value of "E" would change". And the problem already told us the "E" is uniform and so, not changing. Does that make sense?

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3 0
3 years ago
The valve in the exit pipe is closed . The density of water is 1000kg / m and the gravitational force on free fall of water is 1
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7 0
2 years ago
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The time delay between transmission and the arrival of the reflected wave of a signal using ultrasound traveling through a piece
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Answer:

10.01 cm

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d = 10.01 cm

So, the reflection will occur at 10.01 cm.

8 0
2 years ago
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