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OpenStudy (anonymous):
A simple pendulum has a mass of 0.250kg and a length of 1.50 m. It is displaced through an angle of 15.0(deg) and then released. Calculate the total energy of the bob when the angular displacement is 13.0(deg)...I got the answer, but I don't understand why am I going to consider KE=Et at this point...
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OpenStudy (anonymous):
YOLO!
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