A small block, with a mass of 4 kg, is in contact with a spring that has a spring constant of 120 N/m. The spring is compressed by 1.85 m. The block slides around the loop with radius 0.25 m and exits to the right.
Find the initial potential energy of the block, at point A.

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

Two balls, each with a mass of 0.5 kg, collide on a pool table. is the law of conservation of momentum satisfied in the collision? explain why or why not

He latent heat of vaporization for ethyl alcohol is 854 j/g. the amount of energy, rounded to the nearest whole number, needed to change 5.20 grams of ethyl alcohol from a liquid to a gas is