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# Two satellites are in circular orbits around the earth. satellite a is at an altitude equal to the earth's radius, while satellite b is at an altitude equal to three times the earth's radius. what is the ratio of their periods, tb/ta?   ### Another question on Physics Physics, 22.06.2019 06:00
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Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
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Two satellites are in circular orbits around the earth. satellite a is at an altitude equal to the e...
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