Physics, 13.11.2021 07:30 NayeliNoel
A 2 kg ball is rolling down a hill at a constant speed of 4 m/s. When it is 5 m above the bottom of the hill, how much mechanical energy does the ball have? (Assume the bottom of the hill is 0 height)
Answers: 3
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The chemical effect of the endocrine system is longer lasting than the chemical effect of the nervous system. select the best answer from the choices provided t f
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What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration
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Amass weighing 24 pounds, attached to the end of a spring, stretches it 4 inches. initially, the mass is released from rest from a point 8 inches below the equilibrium position. find the equation of motion. (use g = 32 ft/s2 for the acceleration due to gravity.)
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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?
Answers: 1
A 2 kg ball is rolling down a hill at a constant speed of 4 m/s. When it is 5 m above the bottom of...
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