When you rub your hands together on a cold day, you use friction to convert a. mechanical energy into thermal energy. b. thermal energy into nuclear energy. c. nuclear energy into electrical energy. d. electrical energy into electromagnetic energy.

the answer is a) mechanical energy into thermal energy.

a. mechanical energy into thermal energy.

Explanation:

The energy conversion actually start in chemical potential energy in food that is eaten and taken up by muscles. Muscles then take the broken down and digested food and use it to make energy which is mechanical energy as the muscle contracts and relaxes to rub hands together and this produces heat.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

multiply it by 5 in order for you to understand i cant give an exact answer.