Question: How do I show my work for these problems A student who weighs 700. N stands on a hydraulic lift. The lift has a lever,

How do I show my work for these problems

A student who weighs 700. N stands on a hydraulic lift. The lift has a lever, which you push down in order to lift the student. The cross-sectional area of the piston pressing on the fluid under the student is 1 m, and the cross- sectional area of the piston pressing on the fluid under the lever is 0.1 m2. How much force is needed to lift the student? Answer: 70 N Jeff Bigler's hovercraft is made from a circle of plywood and a wet/dry vacuum cleaner. The vacuum cleaner supplies a pressure of 15 000 Pa, and the radius of the plywood base is 0.6 m. How much weight (in newtons) can the hovercraft theoretically lift

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