Counting of currency notes with moist fingers is based on the principles of?
A motorcycle of mass 100kg moves round in a circle of radius 10m with a velocity of 5 ms\(^{-1}\). find the coefficient of friction between the road and the tyres.
A spring of force constant 500 Nm\(^{-1}\) is compressed such that its length shortens by 5cm. The energy stored in the spring is?
When cold water is poured on a can containing hot water, the can collapses because the?
