Which factors are used to calculate the kinetic energy of an object? Check all that apply.
gravity
velocity
volume
mass
height

Mass and velocity are used

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 .

A.(nh4)(2co3)is the correct answer