A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has

Question

A irregular piece of metal has a dry mass of 5.7 kg. Once it is submerged it has an apparent mass of 2.4 kg. What is the density of the piece of metal?

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Specific Gravity weight of substance Specific gravity al formula weight of an cqual volume of water weight of the solid Specific gravity Heavy solid. oss of weight n Water weight of the solid Specific gravity Light solid. weight of solid in air and sinker in water n water weight of the liquid alone Specific gravity Liquid by bolter method weight of the water alone loss of weight of sinker in liquid Liquid by displacement mrthod: Specific gravity loss of weight of sinker in water Type Problems I. An empty specific gravity bottle weighs 75 g Filled with water, it weighs g. Filled with alcohol, it weighs 155 g 75 a. Find the specific gravity of the alcohol. weight of liquid alone 80 g 0.8 Specific gravity weight of water alone 00 g b. Find the volume of the bottle 00 g weight of water 100 cm (volume of bottle) Volu e of water density of water CIm nd 300 g in a liquid 2. An object weighs 710 g in air. 355 g in wa a. Find the specific gravity of the object 710 g weight of object Specific gravity F 355 g oss of weight Water b. Find the specific gravity of the liquid loss of weight of object in liquid 410 g 1.15 Specific gravity E g loss of weight of object in water 355 Practice Problems Find (a) the specific 18. A solid weighs 125 g in air, )5 g in water, and 110 g in an e gravity of the acid gravity of the solid (b) the volume of the solid filled with water 19. An einpty bottle weighs 3 lb. Filled t weighs 5 wit a liqui 0.83 t is the c gravity of the liquid weighs 6 lb he water. What is 20. A piece of wood 5 in. thick floats in water wit above 0,8 the specific gravity of the wood? A sinker is attached to it and the combination weighs 75 g with the cork weighs 9 g. 1. A wafer. When both are lowered into water, the combination eork in air and the sinker in 0,33 weighs 48 g Find the specific gravity of the cork 328

Explanation / Answer

we can easily find it as below:

density =(real weight - apparent weight) / real weight

=(5.7-2.4)/5.7=0.5kg/m^3

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