Describe the link between the distance from the Sun and the speed

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?

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?