When waves travel through water, why do the moving water particles continue to return to their starting position? a. waves transfer matter, but not energy. b. waves transfer both matter and energy. c. waves transfer energy, but not matter. d. waves don't transfer matter or energy.

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?

More solar radiation is absorbed by earth’s surface than by

The diagram shows a wave. the quantity shown is the amplitude. this quantity is directly proportional to which of these other quantities? a) energy b) frequency c) period d) wavelength