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Answer to Question #164 in Molecular Physics | Thermodynamics for Raquel

Question #164
Define order of magnitude of maximum speed, with which artillery projectile fly out of a barrel. What requirements should be followed in order the speed was lead to maximum?
Expert's answer
When projectile moves in the barrel with speed exceeding the speed of thermal motion of molecules of explosive gas, least mentioned stop the pressure on the bottom of projectile and hasten it. This implies that the peak of the speed of projectile during flyoff from the barrel will approximately be equal to average speed of thermal motion of molecules of explosive gas. It will grow when the temperature of explosive gas will grow and its molecular weight will lessen.

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