Physics, 29.11.2019 23:31, jaylanmahone223
The bob of a pendulum has 600 j of kinetic energy at the bottom of its swing. as the bob rises to a height of 4 m above the bottom, it gains 400 j of potential energy. how much kinetic energy does it have at this point?
200 j
300 j
400 j
1000 j
Answers: 1
Physics, 22.06.2019 09:00, cameronbeaugh
Yvette hangs a 2.4kg bird feeder in the middle of a rope tied between two trees. the feeder creates a tension of 480 n in each side of the the rope.
Answers: 1
The bob of a pendulum has 600 j of kinetic energy at the bottom of its swing. as the bob rises to a...
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