Transcription of Air Pressure - Electrical and Computer Engineering
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Chapter5 AirPressureThereis a sumptuousvarietyabouttheNew Englandweatherthatcompelsthestranger sadmiration- alwaysdoingsomethingthere;alwaysattend-i ngstrictlytobusiness;alwaysgettingupnew designsandtryingthemonthepeopletoseehow they getsthroughmorebusinessinspringthaninany have , heatedbytheengineofthesunandcooledbyradi ationintospace, , someasuringtheairpressureis a ,a suddendropinairpressureoftensignalstheon setofstormyweather; themercurybarometer,a columnofliquidthatis supportedbyatmosphericpressure,figure??. Aclosedtubeisfilledwithmercuryandtheninv ertedintoa ,forminga vacuumabove itstopsurface, ,butmercuryis attractive ,theobserver mustcarefullydeterminetheheightofthecolu mnabove thelevel inthereservoir, , thedownwardpressureY Bofthemercurycolumnis YV( )Thepressureofthemercurycolumni
Chapter 5 Air Pressure There is a sumptuous variety about the New England weather that compels the stranger’s admiration -and regret. The weather is always doing something there; always attend-
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