A block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 4.2cm. Its mass is 1.3kg. Calculate the density.

Question

anonymous · Answer

First you find the volume which is length x width x height so therefore, 3.2cm x 17.1cm x 4.2cm gives? you do the math.

anonymous · Answer

Yeah, I got that far. For the volume I got 229.8 cm3

anonymous · Answer

ok good the formula for density is $$P =\frac{ m }{ v }$$ where p is the density, m is the mass and v is the volume so you should apply your values and thats it!

anonymous · Answer

But do I have to put Kg into g?

anonymous · Answer

yes It is wise to convert the kg to g so when you get your answer the SI unit will be g/cm^3

anonymous · Answer

Also some people convert the cm to m to obtain $$kgm ^{-3}$$. Either way is fine!

anonymous · Answer

Thanks so much~!

anonymous · Answer

you're welcome!