Grantham PHY220 Week 1 Assignment Problem 4

What is larger 4000 L or $4\times 10^5\:cm^3$  (and you must show your reasoning.)

Solution:

There are $1000\:or\:1\times 10^3\:cm^3$ in 1 L. So, in $4\times 10^5\:cm^3$ there are

$4\times 10^5\:cm^3\times \left(\frac{1\:L}{1\times 10^3\:cm^3}\right)=400\:L$

Therefore, the 4000 L is larger than $4\times 10^5\:cm^3$.