The glass is 60 cm long, 40 cm wide and 3 mm thick. Determine the mass of the glass.

The weight of the window glass can be calculated using the formula:
m = ρ * V, where m is the required mass of the window glass (kg), ρ is the density of the glass (ρ = 2500 kg / m³), V is the volume of the window glass (V = a * b * c, where a is the length of the glass ( a = 60 cm = 0.6 m), b – glass width (b = 40 cm = 0.4 m), c – glass thickness (c = 3 mm = 0.003 m)).
Let’s calculate the mass of the window glass:
m = ρ * V = ρ * a * b * c = 2500 * 0.6 * 0.4 * 0.003 = 1.8 kg.
Answer: The mass of the window glass is 1.8 kg.