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Solve all parts of given question:
Question: A plastic ball has a charge of 3.40 µC and is attached to a string. When the ball is placed in a uniform horizontal electric field, the string makes an angle of 17.0° with the vertical and has a tension of 0.380 N.
Part A: What is the mass of the small plastic ball?
in grams
Part B: What is the strength of the electric field?
N/C
Please use as much detail as required in answer!!!
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A hydraulic press has one piston of diameter 2.0 cm and the other piston of diameter 8.0 cm. What force must be applied to the smaller piston to obtain a force of 1600 N at the larger piston:
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