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21-02-2017
Physics

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Determine the mechanical energy of this object: a 1-kg pendulum has a speed of 2 m/s ar a height of 1 meter.

A. 9.8 J
B. 11.8 J
C. 2 J
D. 7.8 J

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Аноним Аноним

24-02-2017

B 11.8j took the test

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