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1. What is the density of a piece of aluminium with a volume of 5.60 x 10-6m3 and a mass of 15.1 g? 2. What is the mass of a sample of copper with volume 9.85cm3, given that the density of copper is 8900kg m-3? 3. What is the height of a cylinder of gold, radius 2.0 mm and mass 23.4g, given that the density of gold is 19300 kg m-3? 4. An empty measuring cylinder has mass 25.6g. 24.2 ml of liquid is added and the total mass is 51.1 g. What is the liquid's density? 5. An irregular solid displaces 34.0 ml of liquid when completely immersed. The mass of the solid is 0.264 kg. What is its density? 6. A liquid has density 1 .40gcm-3. What volume of this liquid would have a mass of 0.41 kg? 7. An alloy is 35% zinc and 65% copper by volume, total volume 2.0m3. Densities: copper 8900 kgm-3, zinc 7100 kgm-3 What are the total mass and overall density of the alloy? (Give your answer to 2 significant figures)
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