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A straight, non conducting plastic wire 7.50cm long carries a charge density of 130nC/m distributed uniformly along its length. It is lying on a horizontal tabletop.
Part A
Discover the magnitude and direction of the electric field this wire produces at a point 5.00cm directly above its midpoint.
Part C
If the wire is now bent into a circle lying flat on the table, discover the magnitude and direction of the electric field it produces at a point 5.00cm directly above its center.
The collar C is moving downward with an acceleration of 1 m/s2. At the instant shown, it has a speed of 2 m/s which gives links CB and AB an angular velocity ωAB = ωCB = 10 rad/s. Determine the angular accelerations of CB and AB at this instant.
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