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In a car lift, compressed air exerts a force on a piston with a radius of 5.00 cm.This pressure is transmitted to a second piston with a radius of 15.0 cm.a. How large a force must the compressed air exert to lift a 1.33 × 104 N car?b. What pressure produces this force? Neglect the weight of the pistons. |
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Answer» Answer: 2The PROCESS of deriving large crystals of PURE substances from their solutions is known as crystallisation. It is a physical change. Crystals of salt are obtained by the EVAPORATION of SEA WATER. ... This mixture when filtered and allowed to cool produces crystals of copper sulphate. |
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