QUESTION IMAGE
Question
abin is doing work by lifting a bowling ball. which statement could be made about the energy in this situation?
energy is being transferred from the ball to his arm muscles.
energy is being transferred from his arm muscles to the ball.
energy would be recorded in units of hertz and power.
energy would change from potential to chemical.
When Abin lifts the bowling ball, his arm muscles do work. Work is the transfer of energy. The energy from his arm muscles (chemical energy from food) is used to do work on the ball. As the ball is lifted, its height increases, and it gains gravitational potential energy. Hertz is a unit of frequency, not energy. And the energy is going from his muscles (chemical energy) to the ball (potential energy as it is lifted), not the other way around.
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Energy is being transferred from his arm muscles to the ball.