Calculate the increase in potential energy when a crane lifts a 2,000-kg car a vertical distance of 10 m. The acceleration due to gravity (3) is 10 m/s?.

Acave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. the lift is performed in three stages, each requiring a vertical distance of 10.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.90 m/s; (b) he is then lifted at the constant speed of 4.90 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 68.0 kg rescue by the force lifting him during each stage?

Sort the images based on whether there's a force of attraction or repulsion between the magnets shown. attraction repulsion

Difference between series and parallel circuits