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1. Consider a small lab(20 m2 area,3 m height),where an automatic co2 fire extinguisher, during a sudden fire in one of the hoods, suddenly release 10kg of co2. What is the effective mass per m2 Acting on the windows of the lab due to the suddenly increase pressure.

2. Calculate the mean squared velocity of nitrogen molecules at room temperature and compere the result to the velocity of sound.

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