Fuel is produced by fermenting Ethanol
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<u>Answer</u>
To increase friction for a better grip.
<u>Answer</u>
Most human beings do sweat hands especially on the palm. When this happens the person will not have a good grip of heavy objects because they will slide/slip from the hand.
<em>By applying the powder, you are trying to make the hand dry hence increasing the friction for a better grip. </em>
If the gymnast doesn't do this the parallel bars may slip from the hands and injure himself or herself.
The answer is A. When the the temperature increases the kinetic energy increases
Mechanical Wave cannot travel in space vaccumes, which would be considered "Empty Space" in your situation.
