A hydraulic jack is used to lift a load of weight 4000 N. The load-bearing cylinder has a radius of 4 cm, and the other piston has a radius of 1 cm. What force must be exerted on the smaller piston to support the load?
A. 100 N
B. 16,000 N
C. 250 N
D. 1000 N
E. 4000 N
Answer: C
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