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1. The mass of a tennis ball is 57 g, and its total volume is 144 cm3. What is its density?
2. The mass of a copper sphere is 2.5 g. It has a density of 0.0464 g/cm3. What is its volume?
3. A school chair has a volume of about 9,800 cm3, if the density of the chair is 0.650 g/cm3 what is the mass?
4. A beachball is pushed into the water, it displaces 5N of water. What is the buoyant force on the beachball?
5. Where does the buoyant force acting on a hot air balloon come from?
6. A cardboard box is 55 cm long, 25 cm wide, and 20 cm high. If it has a mass of 2 Kg what is the density of the box?
Sagot :
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