A solid plastic cube of side 0.2m is submerged in a liquid density of 0.8kg(m^{-3})….
A solid plastic cube of side 0.2m is submerged in a liquid density of 0.8kg(m^{-3}). Calculate the upthrust…
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A piece of copper of mass 30g loses 60J of heat energy. If the specific…
A piece of copper of mass 30g loses 60J of heat energy. If the specific heat capacity of…
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Two forces 3N and 4N act on a body in directions due north and due east respectively. Calculate…
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An object falls freely from a height of 25m onto the roof a building 5m high. Calculate the…
The density of a body is (5times10^3kgm{^-3}) and it weighs 1N in air. Calculate the…
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The density of water is 1g(cm^3) while that of ice is 0.9(cm^3), calculate the volume…
The density of water is 1g(cm^3) while that of ice is 0.9(cm^3), calculate the volume change when 90g…