Question

A thief uses a can of sand to replace a solid gold cylinder that sits on a weight sensitive, alarmed pedestal. The can of sand and the gold cylinder have exactly the same dimensions(length=22 cm radius =3.8 cm).
a. calculate the mass of each cylinder(ignore the mass of the can itself.) (density of gold =19.3g/cm cubed, density of sand=3.00g/cm cubed)
b. did the thief set off the alarm? explain.

Answer 1

Find the volume of the cylinder,

\(\huge V=\pi r^2h\)


Use the density and the volume to calculate the mass,

\(\huge density=\rho=\dfrac{m}{V}\)

Answer 2

Thanx

Answer 3

no problem