Ahorizontal jet of water is made to hit a vertical wall with a negligible rebound. if the speed of water from the jet is 'v', the diameter of the jet is 'd' and the density of water is 'p' , then what is the force exerted on the wall by the jet of water?

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s