Physics, 14.07.2019 01:10 Daveandemily17
Two metal spheres, each of mass 18 g and initially at rest, are dropped from a height of 9 m in an evacuated chamber. one sphere has a charge of +70 μc, and the other has a charge –70 μc. find the difference in final speeds of the two spheres (the speeds just before each one hits the ground). assume that there is a downward electric field of about 150 v/m near the earth’s surface.
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