A football player runs down the field with a speed of 8 m/s. How long will it take him to run 20 m?
A. 160 s
B. 5.5 s
C. 2.5 s.
D. 0.4 s

1) when you rub your hands together quickly, the kinetic energy is converted to mechanical energy.2) thermal energy from the sun travels to earth as infrared waves.3) energy is transferred through the matter of space by electromagnetic waves. 4) when a match is burned, chemical potential energy is converted to thermal and radiant energy. 5) seismicwaves are caused by back and forth movement , or vibration, of an object. 6) mechanicalenergy in an engine changes thermal energy into kinetic energy to make a car move.

Scientific classification

Ibelieve the answer you're looking for is

If your workout exceeds an hour you should substitute "a sports drink" for water.hope my answer has you : )