The dimensions of the classroom are 12X8X5 m3. Air density 1.29 kg / m3. Determine the weight of this air

To calculate the weight of the air in the classroom, use the formula: P = m * g = ρw * V * g = ρw * L * B * h * g.

Constants and variables: ρv – air density (according to the condition ρv = 1.29 kg / m3); L is the length of the classroom (L = 12 m); B is the width of the room (B = 8 m); h – height (h = 5 m); g – acceleration due to gravity (g ≈ 10 m / s2).

Let’s perform the calculation: P = ρw * L * B * h * g = 1.29 * 12 * 8 * 5 * 10 = 6192 N.

Answer: The air weight in a given classroom is 6192 N.