Tuesday
September 2, 2014

Homework Help: Science

Posted by Alexis on Saturday, September 29, 2012 at 5:53pm.

A hydraulic lift office chair has its seat attached to a piston with an area of
11.2 cm2
. The chair is raised by exerting force on another piston, with an area
of 4.12 cm2
. If a person sitting on the chair exerts a downward force of 219 N,
what force needs to be exerted on the small piston to lift the seat?

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