Physics, 18.10.2019 11:30, victoriahuntley12148

If mechanical energy is conserved, then a pendulum that has a potential energy of 20 j at its highest point and 0.5 j at its lowest point has as its kinetic energy at its lowest point.

20 j
0.5 j
19.5 j
20.5 j

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If mechanical energy is conserved, then a pendulum that has a potential energy of 20 j at its highes...