What is the purpose of a free body diagram? to show the velocity of an object

to show the acceleration of an object

•••••to show the forces acting on an object

to show the direction of motion vectors of an object

THE CORRECT ANSWER IS C.
I’m helping because I couldn’t find the answer and I GUSSED but it’s correct on edgenuity 2020.

The independent variable is the type of music.the dependent variable is the pulse rate.the intervening variable is the age of the subject.if the mother does not like rock, her pulse is likely to not increase.the same might be true for the sister.the friend may like rap and gets excited.to establish cause/effect relationship, all of the subjects must be consistent.hope i .

The answer is bhope this

Answer:

5.6⋅10−^19  j

do you need the explaination?

Ijust took the quiz. their is no coefficient needed. : )