4000/30 = 133.3 times the force requires 133.3 times larger area for the large piston, compared to the smaller one.
7.0 cm^2 * 133.3 = ?
the small piston of a hydraulic press has an area of 7.0 cm squared. if the applied force is 30.0 N, find the area of the large piston to exert a pressing force of 4000 N
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