Question

Question #7d62e

Answer 1

Assuming `15,000cm^3` of wood I got: `12,750g`

Explanation:

Kate, remember that you need to include the units as well!
For example you have a volume of `15000`....`cm^3`?

You may use a table to find the DENSITY of your material (basically how much stuff fits into a given volume of this stuff); these tables can be found in textbooks, websites...as for example:

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Density tells you the amount of mass in grams that fits into a volume of `1 cm^3`....for wood `0.85g/(cm^3)`

So: `"density"="mass"/"volume"` and rearranging:

`"mass"="density"xx"volume"`

If you have `15000cm^3` of wood then:

`"mass"=0.85xx15000=12,750g`
If you have different types of wood (cedar, fir, pine...etc) you can change the corresponding value of density and evaluate the new value of mass.