An aluminum engine block has a volume of 4.61 l and a mass of 12.72 kg. what is the density of the aluminum in grams per cubic centimeter?

1 liter = 1000cm^3
1 Kg = 1000 gram
So the density is: 4610 cm^3 / 12720 grams

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 .

Idont know. if you want an answer you need to give us some context dude.