ch14-p031 - 31. (a) The anchor is completely submerged in...

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Unformatted text preview: 31. (a) The anchor is completely submerged in water of density ρw. Its effective weight is Weff = W – ρw gV, where W is its actual weight (mg). Thus, V= W − Weff 200 N = = 2.04 × 10−2 m3 . 3 2 ρw g (1000 kg/m ) ( 9.8 m/s ) (b) The mass of the anchor is m = ρV, where ρ is the density of iron (found in Table 14-1). Its weight in air is W = mg = ρVg = ( 7870 kg/m3 ) (2.04 × 10−2 m3 ) ( 9.80 m/s 2 ) = 1.57 × 103 N . ...
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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