Answer to Question #255103 in Molecular Physics | Thermodynamics for PUMAH LUTRA

Question

The following are the dimensions of a metallic plate ; Length = 15.6= 0.1cm, Width = 5.51= 0.02cm, thickness =0.84= 0.01cm and mass = 12.512= 0.001g. Calculate the density of the plate and indicate the order accuracy.

Answer 1

$L=0.1 \;cm \\ W = 0.02 \;cm \\ T = 0.01 \;cm \\ m= 0.001 \;g \\ V = LWT \\ V = 0.1 \times 0.02 \times 0.01 = 2.0 \times 10^{-4} \;cm^3 \\ Density = ρ = \frac{m}{V} = \frac{0.001}{2.0 \times 10^{-4}} = 5.0 \;g/cm^3$