Water is being heated in a closed pan on top of a range while being stirred by a paddle wheel. during the process, 30 kj of heat is transferred to the water, and 5 kj of heat is lost to the surrounding air. the paddle-wheel work amounts to 5000 n m. determine the final energy of the system if its initial energy is 10 kj.

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration

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