P15_063 - for density ρ = m/V ) we have W m = p µ V m ¶...

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63. (a) We rewrite the formula for work W (when the force is constant in a direction parallel to the displacement d ) in terms of pressure: W = Fd = µ F A ( Ad )= pV where V is the volume of the chocolate cylinder. On a per unit mass basis (utilizing the equation
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Unformatted text preview: for density ρ = m/V ) we have W m = p µ V m ¶ = p ρ . (b) If p = 5 . 5 × 10 6 Pa and ρ = 1200 kg / m 3 , we obtain W/m = p/ρ = 4 . 6 × 10 3 J/kg....
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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