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Piston 1 has a diameter of 0.34 in. Piston 2 has a diameter of 1.0 in. In the absence of friction, determine the force, necessary to support the 500 lb weight over piston 2.

I used F(1) = pi(r1^2)/pi(r2^2)*F(2)

and got the wrong answer. I used radii of .17in and .5in. Is that the right formula? Do I need to convert the units to something else?

I used F(1) = pi(r1^2)/pi(r2^2)*F(2)

and got the wrong answer. I used radii of .17in and .5in. Is that the right formula? Do I need to convert the units to something else?

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