Why does a sheet of sandpaper become warm when you rub it against a wooden board?
a. heat in...
Physics, 31.01.2020 09:02 navarreteanamen123
Why does a sheet of sandpaper become warm when you rub it against a wooden board?
a. heat in the air is transferred to the sandpaper
b. matter in the sandpaper is converted to heat
c. the chemical energy in the wood is converted to thermal energy
d. the mechanical energy of the moving sandpaper is converted to thermal energy
im inn between c or d but im stuck! !
Answers: 2
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