Which of the following choices is a reason for replace my needs
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Physics, 21.06.2019 13:50
Aboat that travels with constant speed of 6.10 m/s in still water is to go directly across a river. the current in the river flows at 1.95 m/s. (a) at what angle must the boat be steered?
Answers: 1
Physics, 22.06.2019 11:50
Amoving electron has kinetic energy k1. after a net amount of work w has been done on it, the electron is moving one-quarter as fast in the opposite direction. (a) find w in terms of k1. (b) does your answer depend on the final direction of the electron's motion?
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Physics, 22.06.2019 20:30
Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.
Answers: 3
Physics, 22.06.2019 21:10
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius í
=0.381meters and mass í=3.1íí. initially í"is on the ground and í#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of í#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
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