Describe how objects in outer space move (such as satellites, moons, and planets) and explain why they move in that way

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 11.0 m: (a) the initially stationary spelunker is accelerated to a speed of 4.80 m/s; (b) he is then lifted at the constant speed of 4.80 m/s; (c) finally he is decelerated to zero speed. how much work is done on the 78.0 kg rescue by the force lifting him during each stage

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

This is the substance(s) formed in a chemical reaction.