The answer is observation
The answer would be:
The comb gains electrons.
The hair loses electrons.
In chemistry, the charge depends on the electrons and protons. The electron will give negative charge and proton will give the positive charge. Proton is located in the nucleus of the atoms so it won't easily move like electron which located in the orbit in the atoms perimeter. So, ignore the option with the proton.
If the combs become negatively charged, that means it gain some electron. Since something gain electron, that means another thing is losing an electron. That electron comes from the hair.
Depends on how heavy ur car is, u could use a high powered fan to move the can or u could use the motor and wheels from a remote control car
The change of speed is proportional to the Force. If you double the Force, you double the change of speed.
Answer:
It increases
Explanation:
When the angular motion increases its intensity will also increase making it to spin fast.
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