Physics, 24.11.2020 07:40, nickocasamplonp6mlob
!25 PTS A 2 kilogram rock is a the edge of a cliff 20 meters above a lake. The rock becomes loose and falls toward the water below. What is the potential energy of the rock at the top?
What is the kinetic energy at the top?
What is the potential energy of the rock half way down?
What is the kinetic energy of the rock half way down if the velocity at that point is 14 m/s?
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Answers: 3
Physics, 21.06.2019 23:00, 12camtheman
How is acceleration calculated? a. initial velocity - final velocity / timeb. initial velocity + final velocity / timec. final velocity - initial velocity / timed. final velocity / timele select the best answer from the choices provided0oood00save and exitnextmark this and return
Answers: 1
Physics, 22.06.2019 19:00, Geo777
Abatter hits a 0.140-kg baseball that was approaching him at 30 m/s and, as a result, the ball leaves the bat at 40 m/s in the reverse of its original direction. the ball remains in contact with the bat for 2.0 ms. what is the magnitude of the average force exerted by the bat on the ball?
Answers: 1
!25 PTS A 2 kilogram rock is a the edge of a cliff 20 meters above a lake. The rock becomes loose an...
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