D: melting
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A certain liquid is used in a liquid-in-glass thermometer. It does not expand uniformly with temperature. What effect…
An ice pack is used to cool 0.25 kg of water. The specific heat capacity of water is 4.2 kJ/(kg°C). How much thermal …
Fillings in teeth should be made from a material which
A student finds the centre of mass of a triangular lamina PQR. He drills a small hole at Q. He suspends the lamina fr…
The same downward force is applied to four objects resting on a horizontal surface. Which exerts the greatest pressur…
Four identical measuring cylinders contain liquid. Two contain water of density 1000 kg/m³. Two contain paraffin of d…