A spring stretches by 15cm when a mass of 300g hangs down from it. If the spring is stretched an additional 10cm and released, calculate the spring constant.

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

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell

As the distance from a magnet increases, what happens to the magnet force?