"A study of the different amounts of time it takes water to evaporate completely"
The light will change its direction and bend away from the normal.
Explanation:
The correct is A.
every magnet have two pole
So the answer is 324.
Explanation
Because I took that test and I got right if u don’t believe me u can brainy it
Input energy is: 200 joule
Output energy is: 100 joule
100/200*100=%50 efficiency