<span>By protecting Earth from damaging solar particles! :)</span>
Answers to wave questions:
1) trough - lowest point of the wave.
2) crest - highest point of wave.
3) amplitude - distance from rest position to the crest or thoughs.
4) wavelenght - distance from two consecutive crest or troughs.
5) rest position - the flat line running through middle of the wave.
A. ) Chemical
B.) Mechanical
C.) Thermal
D.) Potential
Hope this helps!
222.5 g
I did it like this:
X/250= 89/100=
22250/100=
222.5