Answer:
73N
Explanation:Just multiply 1.2^2 by 50
Physical
Chemical
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Chemical
I believe this is right but double check to make sure :)
Answer:
electricity
If a rod is charged it is because of the electrical force acting on it
Answer:D.Refractive Indez
Explanation:
It is usually expressed the other way: the ratio of the speed of light in a vacuum to the speed of light in a medium. In that case, it is called the "index of refraction".