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(Solved): Problem #3 (40 Points) A small block of mass m and charge Q is placed on an insulated, frictionless, ...



Problem #3 (40 Points) A small block of mass

m

and charge

Q

is placed on an insulated, frictionless, inclined plane of angle

u

as in figure below. An electric field is applied parallel to the incline. (a) Find an expression for the magnitude of the electric field that enables the block to remain at rest. ( 20 points) (b) If

m=5.40g,Q=9.00\mu C

, and

\theta =35.0\deg

, determine the magnitude and the direction of the electric field that enables the block to remain at rest on the incline. ( 20 points)

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