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3 years ago

10

Some students fire a rocket of mass 0.150kg into the air. If at the top of it's flight it has a gravitational potential energy o

f 150J, What height did it reach?

1 answer:

mamaluj [8]3 years ago

4 0

PE=mgh
150J=(0.150)*(9.8)*h
h=102m

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The force required to pull the two hemispheres is 46622.72N

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2 years ago

If light intensity obeyed an inverse square law you would expect to find the intensity of light to decrease as the square of the

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3 years ago

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Answer:

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From energy conservation theorem,

Spring potential energy converted into kinetic energy,

$\frac{1}{2} m v^{2} = \frac{1}{2} k x^{2}$

$v = \sqrt{\frac{k x^{2} }{m} }$

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3 years ago

Parker (73.2 kg) is being dragged down the hall with an applied force of 123 N. If the frictional force is 27.4 N, what is the c

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Answer:

The coefficient of friction in the hall is 0.038

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3 years ago