document.write( "Question 1089035: What is the force in pounds exerted upwards on a piston with a diameter of 4 inches if a gauge indicates the internal pressure in the cylinder is 1000 psi? \n" ); document.write( "

Algebra.Com's Answer #703358 by rothauserc(4718) $\"\"$ $\"About$

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the piston's area in square inches = pi * r^2 = (22/7) * 2^2 = 12.5664 square inches
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\n" ); document.write( "internal pressure is 1000 psi, therefore
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\n" ); document.write( "force in pounds = 1000 * 12.5664 = 12,566 pounds
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