With what force does the atmosphere press on a 20×40 cm sheet of an album if the atmospheric pressure is 720 mm Hg?

Problem data: L (length of the album sheet) = 40 cm (in SI L = 0.4 m); B (sheet width) = 20 cm (SI B = 0.2 m); P (atmospheric pressure) = 720 mm Hg. Art. (in SI system P = 95991.84 Pa).

The force of atmospheric pressure on the considered sheet of the album can be calculated by the formula: F = P * S = P * L * B.

Calculation: F = 95991.84 * 0.4 * 0.2 ≈ 7.68 * 103 N = 7.68 kN.

Answer: The atmosphere presses on the album in question with a force of 7.68 kN.



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