What charge must be placed on ball for it to be suspended
A Styrofoam ball of mass 0.120 g is placed in an electric field of 6000 N/C pointing downward. What charge must be placed on the ball for it to be suspended?
A) -16.0 nC
B) -57.2 nC
C) -125 nC
D) -196 nC
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A point particle with charge q = 52 µC is placed at a corner of a cube of edge a = 7.8 cm. What is the flux through (a) each cube face forming that corner and (b) each of the other cube faces?
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The ball is launched at an angle of 55.1 ° above the ground. Determine the (a) horizontal and (b) vertical components of the launch velocity.
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