It says mechanical energy is the sum of an objects potential energy and kinetic energy. consider the positions of this swinging pocket watch. at which positions will the potential energy be the highest? assume the pendulum can swing forever (ignore circles are the answer choices.
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Ответ:
Explanation:
Potential energy is the energy possessed by an object due to its position. Therefore, when an object is at rest then it has potential energy.
Therefore, when pendulum of stop watch is moving then potential energy will be highest at the extreme left and extreme right position.
This is because at extreme left and extreme right position the kinetic energy will be zero. Hence, it possesses only potential energy which is maximum as compared to the rest of position.
Ответ:
Chemical to Electrical
Explanation:
The answer is B, because if you think about it, people always say you need to eat food to get energy, so you would be able to move. This saying comes in use in this question, as the food provides Chemical Energy, and gets transferred to Electrical Energy, to help you move around.