Physics, 20.01.2021 06:00 gonzalesnik
What is the acceleration of a train moving west at a velocity of 15 m/s that slows to 5 m/s in 20 seconds?
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Calculate the mass of an object that has a momentum of 100kg x m/sec and velocity of 4 m/sec
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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.
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Two identical stars with mass m orbit around their center of mass. each orbit is circular and has radius r, so that the two stars are always on opposite sides of the circle. (a) find the gravitational force of one star on the other. (b) find the orbital speed of each star and the period of the orbit. (c) how much energy would be required to separate the two stars to infinity?
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What is the acceleration of a train moving west at a velocity of 15 m/s that slows to 5 m/s in 20 se...
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