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The window has a surface of 1.5 m2*... *The compartment has a volume of 12 m3*... *The train speeds 80 kph to the west*.The south wind is blowing at 5 mps*...*How quickly will the space be refreshed?*

Train  speeds at 80kph i.e 22m/s The train is moving towards west (22m/s) and wind to south which is (5m/s)  So resultant wind through w...