[" Aspherical ballis moving with terminal velocity inside a liquid.Detemines "],[" heat loss with the radius of ball."],[" Rate of heat loss "=" power "=F times v=6 pi nrv times v=6 pi nrv^(2)=6prr[(2)/(9)]],[" Therefore rate of heat loss "prop r^(5)]

A spherical ball is moving with terminal velocity inside a liquid determine the relationship of rate of heat loss with the radius of ball.

A spherical ball is moving with terminal velocity inside a liquid determine the relationship of rate of heat loss with the radius of ball.

A spherical ball is moving with terminal velocity inside a liquid determine the relationship of rate of heat loss with the radius of ball.

The force F on a sphere of radius r moving in a medium with velocity v is given by F = 6 pi eta rv . The dimensions of eta are

The force F on a sphere of radius r moving in a medium with velocity v is given by F = 6 pi eta rv . The dimensions of eta are

A small spherical ball of radius r falls with velocity upsilon through a liquid having coeffiecinet of viscosity eta. find viscous darg F on the wall if it depends or r, upsilon, eta. Take K = 6 pi

A metal ball of mass 1 kg is heated by means of a 20 W heater in a room at 20^(@)C . The temperature of the ball becomes steady at 50^(@)C . Assume newton's law of cooling to hold good in the given situation. The temperature of the ball rises uniformly from 20^(@)C to 30^(@)C in 5 minutes. select the correct alternatives (1) The rate of heat loss by ball to surrounding is 20 W, when it is at 50^(@) (2) The rate of heat loss by ball to surrounding is (20)/(3)W , when it is at 30^(@)C (3) The rate of heat loss by ball to surrounding 20 W, when it is at 30^(@)C (4). The specific heat capacity of the gas is 500 J/kg K.

A solid aluminium sphere and a solid copper sphere of twice the radius are heated to the same temperature and are allowed to cool under identical surrounding temperatures. Assume that the emisssivity of both the spheres is the same. Find ratio of (a) the rate of heat loss from the aluminium sphere to the rate of heat loss from the copper sphere and (b) the rate of fall of temperature of the aluminium sphere to the rate of fall of temperature of copper sphere. The specific heat capacity of aluminium =900Jkg^(-1)C^(-1) . and that of copper =390Jkg^(-1)C^(-1) . The density of copper =3.4 times the density of aluminium.

Terminal voltage of cell (emf = 3V & internal resistance = r) is equal to 2.5V and heat loss in R is given by 0.5Watt find power loss in internal resistance