Posted by **Anonymous** on Tuesday, December 14, 2010 at 10:51am.

Given a cube of density 8900kg/m3 and length side 10cm

A-what is the nature of his cube?

B-find the mass of the above cube?

C-find the relative density of the cube?

D-using gravity 10N/kg find its weight?

- physical science -
**drwls**, Tuesday, December 14, 2010 at 11:29am
A- What do you mean by the "nature" of a cube?

B- Density x Volume

C- Relative to what?

D- If they are trying to teach you the relationship between mass and weight, they should teach you the correct value of g. On earth, it is 9.81 m/s^2 , not 10. It varies with location, planet and altitude.

Anyway, multiply mass (kg) by the N/kg number.

- 7th grade -
**Dr Russ**, Tuesday, December 14, 2010 at 11:42am
Nature often means solid,

liquid or gas. Typical solids have high densities and this figure would make it a solid. It is the same density as copper.

Relative density is relative to water, unless the material is otherwise specified.

As no temperature is given then use 1000 kg m^-3 for water, so the relative density is 8.9 (no units).

- 7th grade -
**bo**, Monday, September 17, 2012 at 6:37pm
10 cm long,10 cm wide,and 10 cm high

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