Chan Hee is inflating a basketball using an air pump. He notices that the pump gets warm as he uses it. What is a good hypothesis that could lead to new experimentation?
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Explanation:
it gets heated because mechanical energy is distributed in the form of heat energy
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Answer:force of friction/pressure
Explanation:when we inflate a ball using a pump we first pull the handle so as to suck air to fill in the ball. When we push it down we exert a lot of force to pump in air through the tiny hole of the pin due to this force of resistance present in air we find that the tube gets heated
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