Question

The density of a material is 40 g/cm^3. If it is compressed so that is has 1/3 the original volume, what is the new density?

Answer 1

\[\rho = \frac{m}{V}\]
if you divide volume by 3, what happens to density?

Another way to look at it: if you have 40 g in \(\frac13~\)cm\(^3\), how many grams in 1 cm\(^3\)?

Answer 2

ummmmmmmm 1?

Answer 3

or no no 3

Answer 4

\[40 \div \frac13\]

Answer 5

oohh... is it um.... 120??

Answer 6

yes

Answer 7

ohh haha, so the answers 120?

Answer 8

120 g cm\(^{-3}\)

remember to include units

Answer 9

oh yeah yeah thanks, i always forget, damn thanks alot for your help,i wouldve failed my class if it wasnt for this, thanks alot