The mass M of gunpowder burning in one second in the chamber of a rocket engine depends on the pressure P according to the law M = APn (A and n are some constants). The flow rate of the gas mass due to the outflow from the nozzle is proportional to the pressure in the chamber. How many times do the pressures in the chambers of rocket engines differ if the cross sections of their nozzles are equal to S1 and S2? Consider the special case when n = 2/3, S1/S2 = 2.

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