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A ball is suspended by a string and moves in a horizontal circle. One such pendulum has a 100g ball at the end of a 1.5 meter long string and has an orbit of radius 30.0cm.
1) Choose axes and set up the force balance equations for each:
2) Determine the net force acting on the ball and the acceleration:
3) Determine the tension in the string:
When a certain air-filled parallel-plate capacitor is connected across a battery, it acquires a charge of magnitude 196 ?C on each plate. What is the dielectric constant of the dielectric slab
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