A rectangular object weighs m= 39.3 g and has dimensions of l = 23 cm and w = 19.1 cm and t =19.3 cm. Calculate the density of the matter in kg/m3

Answer 1

m = 39.3 g → m = 0.0393 kg (convert from grams to kilograms by moving 3 decimal places to the left)

l = 23 cm → l = 0.23 m (convert from centimeters to meters by moving 2 decimal places to the left)

w = 19.1 cm → w = 0.191 m (convert from centimeters to meters by moving 2 decimal places to the left)

t = 19.3 cm → t = 0.193 m (convert from centimeters to meters by moving 2 decimal places to the left)

D = m/v → D = (0.0393 kg) / (0.23 m)(0.191 m)(0.193 m) = 4.6 kg/m³

The density of a matter (rectangular object) is about 4.6 kg/m³.