If you push on a cart, the force of friction will slow it down. Friction is
the conversion of kinetic energy to
Select one:

1.heat
2.direction
3.velocity or speed
4.magnetism

Heat

Explanation:

Friction can help convert heat into kinetic energy and kinetic energy into heat. Friction can be thought of as particles from different objects hitting each other. Collisions transfer energy converting large scale movement (kinetic energy) into small scale movement (heat).

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

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