### An artificial satellite revolves round the earth with a relative velocity of 800 m/s. If acceleration due to gravity is 9 m/s^{2} and gravitational force is 3600 N, calculate its kinetic energy.

An artificial satellite revolves round the earth with a relative velocity of 800 m/s. If acceleration due to gravity is 9 m/s^{2} and gravitational force is 3600 N, calculate its kinetic energy.

4. The specific heat capacity of the system during a certain process is given by

c_{n} = (0.4 + 0.004 T ) kJ/kg °C

If the mass of the gas is 6 kg and its temperature changes from 25°C to 125°C find:

(i) Heat transferred;

(ii) Mean specific heat of the gas.

5. A temperature scale of certain thermometer is given by the relation

t = a ln p + b

where a and b are constants and p is the thermometric property of the fluid in the thermometer. If at the ice point and steam point the thermometric properties are found to be 1.5 and 7.5 respectively what will be the temperature corresponding to the thermometric property of 3.5 on Celcius scale.

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