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A 2.4mm -diameter sphere is charged to -4.5nC . An electron fired directly at the sphere from far away comes to within 0.32mm of the surface of the target before being reflected.
A) What was the electron's initial speed?
B) At what distance from the surface of the sphere is the electron's speed half of its initial value?
C) What is the acceleration of the electron at its turning point?
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A playground merry-go-round has radius 2.50mand moment of inertia 2800kg?m2 about a vertical axle through its center, What is the average power supplied by the child
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A light ray initially in water enters a transparent substance at an angle of incidence of 39.0°, Calculate the speed of light in the transparent substance
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The drawings show three charges that have the same magnitude but may have different signs. Determine the magnitude of the net force on charge
You lower a weight of metal in a beaker filled with water standing on a scale. When metal weight hangs above the water weighs 179.6 grams, What is the metal weights density
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