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# Quiz6 - = jewel jewel water jewel jewel water jewel b jewel...

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PHY126 Quiz No. 6 (Chap.15) Name: A 5.4-g jewel has an apparent weight of 32mN when submerged in water. Could the jewel be diamond whose density is 3.51 g/cm 3 ? Solution The buoyant force on an object is equal to the weight of the fluid displaced by the object: jewel jewel water jewel jewel water jewel water water b W g m g V g m F ρ ρ ρ ρ ρ = = = = where is the actual weight of the jewel. The apparent weight of the jewel is: g
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Unformatted text preview: = jewel jewel water jewel jewel water jewel b jewel apparent W W W F W W ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ − = − = − = 1 . So the density of the jewel is: 3 3 2 3-3 kg/m 10 53 . 2 ) m/s 9.8 kg 0054 . /( ) N 10 (32-1 kg/m 1000 / 1 × = × × = − = jewel apparent water jewel W W . The value is too small, so the jewel is not diamond!...
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