Physics, 25.06.2019 06:30 miguegen6225
Two friends, al and jo, have a combined mass of 195 kg. at the ice skating rink, they stand close together on skates, at rest and facing each other. using their arms, they push on each other for 1 second and move off in opposite directions. al moves off with a speed of 10.2 m/sec in one direction and jo moves off with a speed of 11.4 m/sec in the other. assuming that friction is negligible, find al's mass.
Answers: 3
Physics, 22.06.2019 09:30
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
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When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
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Two friends, al and jo, have a combined mass of 195 kg. at the ice skating rink, they stand close to...
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