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Determine the average number of collisions between air molecules for 1 s in 1 cm ^ 3 at a temperature of 7 ° C, if the air density is 0.05 kg / m ^ 3.

Determine the average number of collisions between air molecules for 1 s in 1 cm ^ 3 at a temperature of 7 ° C, if the air density is 0.05 kg / m ^ 3.