Calculate the depth of a swimming pool if the apparent depth is 10cm. ( Refractive index of water = 1.33 )
What will be the weight of a man of mass 60kg standing in a lift if the lift is descending vertically at 3ms\(^2\)?
The gravitational force between two objects masses 10\(^{24}\)kg and 10\(^{27}\)kg is 6.67N. Calculate the distance between them [ G = 6.6 x 10\(^{-11}\)Nm\(^2\)kg\(^{-2}\) ]
The tangential force acting on an object that opposes it from sliding freely on the adjacent surface is called
Two tuning forks of frequencies 6Hz and 4Hz respectively are sounded together. The beat frequency is
