if an object with a mass of 200 kg is accelerating at the rate of 4 meters per second what is the force on the object

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

Idon't know hope someone you

Ithink the answer is d