A metal ball bearing of specific heat capacity C moving with speed V is brought to rest. All its kinetic energy is converted into thermal energy which it absorbs causing a temperature `rise_(Delta theta)` the value of V is `sqrt((PC Delta theta)/(J))` ,then value of `p/J` is

A lead ball moving with velocity v strikes a wall and stops. iF 50% of its energy is converted into heat, then what will be the increase in temperature ? Specific heat of lead is s

A thermally insulated vessel contains an ideal gas of molecular mass M and ratio of specific heats gamma . It is moving with speed v and it's suddenly brought to rest. Assuming no heat is lost to the surroundings, Its temperature increases by:

A thermally insulated vessel contains an ideal gas of molecular mass M and ratio of specific heats gamma . It is moving with speed v and it's suddenly brought to rest. Assuming no heat is lost to the surroundings, Its temperature increases by:

A bullet of mass 5 g travelling with a speed of 210 m/s, strikes a fixed wooden target. One half of its kinetic energy is converted into heat in the bullet while the other half is converted into heat in the wood. The rise of temperature of the bullet if the specific heat of its material is 0.030 (cal)/(g - ^@C) (1 cal = 4.2 xx 10^7" ergs") close to :

A bullet of mass 5 g travelling with a speed of 210 m/s, strikes a fixed wooden target. One half of its kinetic energy is converted into heat in the bullet while the other half is converted into heat in the wood. The rise of temperature of the bullet if the specific heat of its material is 0.030 cal/ (g - ""^@C) (1 cal = 4.2 xx 10^7" ergs") close to :

A bullet of mass 5gm is moving with speed 400m//s . Strike a targent and energy. Then calculate rise of temperature of bullet. Assuming all the lose in kinetic energy is converted into heat energy of bullet if is specific heat is 500 J//kg^(@)C .

A metal sphere of radius r and specific heat s is rotated about an axis passing through its centre at a speed of n rotation/s. It is suddenly stopped and 50% of its energy is used in increasing its temperature. Then, the rise in temperature of the sphere is

A particle of mass m is moving along the x-axis with initial velocity ui . It collides elastically with a particle of mass 10 m at rest and then moves with half its initial kinetic energy (see figure).If sin theta _(1) = sqrt(n) sin theta_(2) then value of n is

A ball is dropped on a floor from a height of 2.0m . After the collision it rises up to a height of 1.5m . Assume that 40% of the mechanical energy lost goes as thermal energy into the ball.Calculate the rise in the temperature of the ball in the collision. Heat capacity of the ball is 800J K^(-1)

A ball is dropped on a floor from a height of 2.0m After the collision it rises up to a height of 1.5m . Assume that 40% of the mechanical energy lost goes as thermal energy into the ball. Calculate the rise in the temperature of the ball in the collision specific heat capacity of the ball is 800J kg^(-1) K^(-1)