Physics, 10.03.2020 09:16 amandagewecke88
A student makes a simple pendulum by attaching a mass to the free end of a l.50-meter length of string suspended from the ceiling of her physics classroom. She pulls the mass up to her chin and releases it from rest, allowing the pendulum to swing in its curved path. Her classmates are surprised that the mass doesn't reach her chin on the return swing, even though she does not move. Why does the mass not have enough energy to return to its starting position and hit the girl on the chin?
Answers: 1
Physics, 22.06.2019 12:10, saniyawilliams1207
Energy flows from the producer level to the level. is called
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Physics, 22.06.2019 12:30, ayoismeisjjjjuan
Cathy is pedaling down a steep hill on her bicycle and wants to be able to coast up the next hill, which is 25 meters high, without pedaling. cathy and her bicycle have a mass of 75 kg. assuming her bicycle is 100% efficient, what would her speed have to be?
Answers: 3
Physics, 22.06.2019 15:30, bloodry
Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples
Answers: 1
A student makes a simple pendulum by attaching a mass to the free end of a l.50-meter length of stri...
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