Best Answer

Density = (mass)/(volume)

170 mm = 17 cm

25.4 mm = 2.54 cm

Volume = (17 x 2.54 x 2.54) = 109.6772 cm3

Density = 8.2/109.6772 = 0.0748gram/cm3

This is a very intriguing density for a rectangular rod ... only 7.5% as dense

as water, 2.8% as dense as aluminum, 14.1% as dense as lithium, the lightest

metal, and only 63 times as dense as room-temp sea-level air. We're suspicious

of the figure given for mass, but we stand behind our math.

Q: What is the density of rectangular rod whose dimentions are 170mm25.4mm25.4mm and whose mass is 8.20grams?

Write your answer...

Submit

Still have questions?

Continue Learning about Math & Arithmetic

Density is weight divided by volume. In the case of a rectangular solid, volume is length times width times height.

You divide its mass by its volume.

It is the mass of the block divided by its volume.

Volume x Density . . . yes

You multiply its density by its volume.

Related questions

Density is weight divided by volume. In the case of a rectangular solid, volume is length times width times height.

9.047619047619048

You divide its mass by its volume.

It is the mass of the block divided by its volume.

Volume x Density . . . yes

You multiply its density by its volume.

You need its mass and volume.

on a balance

W = Volume x weight density

Volume

You measure its length, breath, height and mass. Then Density = Mass/(Length*Breadth*Mass) in the appropriate units.

Density = Mass/Volume = 850/(9*7*12) = 1.1243 grams per cm3