An earthquake has caused a rock to roll off the top of a cliff. When the rock is 16 meters off the ground it is moving at a velocity of 32 m/s. The rock has a mass of 10 kg. How much total mechanical energy does the rock have?

This would be canberra.

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 .