1. At standard temperature and pressure of Nitrogen gas contained in an open litre flask, If the flask is halved with the hot water at temperature then the gas keep in thermal equilibrium with the water.
2. In Physics lab, the length of a Second Pendulum is increased due to heat in summer in such a way that the time period is increased to . For right time period, a student decreases its length by
3. The moon is considered to be a uniform sphere. Consider an artificial satellite is revolving from the centre of the moon at a height . The circumference of the moon is and density is .
4. An object of mass is dropped in a tunnel passing througl the centre of the earth. In the surface of the earth, and radius of the earth is .
5. A force of is applied to a particle, it goes from point to . Another force is applied with to a particle it goes from point to point .