is A rod has a height of 7cm and a radius of 0.5cm. What is the density of the rod, in g/cm3 , if its mass is 33g?

Answer 1

Density = Mass/ Volume

Mass = 33gm

Volume = ∏ r² * Length

Volume = ∏ (0.5)² *7 = 3.14*0.5*0.5*7 = 5.495 cm³

Density = 33/5.495 gm/cm³ = ?

6.00 gm/cm³

Pl check your answer

Answer 2

Hi Aniyah M

If your rod is a solid cylinder then you could use the volume calculation for a cylinder and plug that into your density calculation

Volume of a cylinder is the height times the radius squared x pi since the Density is mass divided by volume. You would have

33g/(7cm*((0.5cm²)∏))

I hope this helps but only you can let us know what your rod looks like