Physics Past Questions and Answers

Calculate the energy required to vapourise 50g of water initially at 80^oC.[specific heat capacity of water = 2260Jg^-1K^-1][specific latent heat of vaporisation of water = 2260Jg^-1]

What type of motion does the skin of a 'talking' drum perform when it is struck with a drum stick?

A slinky spring fixed at one end is placed horizontally on a table. The free end is displaced parallel to the table and then released. The resultimg wavelength is

A radio wave has a wavelength of 150m. If the velocity of radio waves is free spaces is 3 x 10\(^8\) ms\(^{-1}\), calculate the frequency of the radio wave

In the wave equation y = E_o, sin(299t - \(\pi\)), E_o represents the