5. A helicopter scoops a load of water out of a lake, to dump on a forest fire. The helicopter exerts 6480 N of force on the water while rising high enough to fly over a mountain. If the helicopter does 1.62 x
10%) of work on the water while lifting it, how high does it lift the water.

h = 250 m

Explanation:

Given that,

The helicopter exerts 6480  N of force on the water while rising high enough to fly over a mountain.

The helicopter does of work on the water lifting it.

We need to find how high does it lift the water. Work done is given by :

So, it can lift the water to a height of 250 m.

v=ir = 3x15 =45 v

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid