A few grains of table salt were put in a cup of cold water, kept at constant temperature and left undistributed. Eventually all the water tested salty. This action is due to?
The force required to make an object of mass m, travelling with velocity v, turn in a circle of radius r is
A machine gun with a mass of 5kg fires a 50g bullet at a speed of 100 ms\(^{-1}\). The recoil speed of the machine gun is
If in a simple pendulum experiment the length of the inextensible string is increased by a factor of four, its period is increased by a factor of?
In what range of temperature is the expansion of water anomalous?
