# Doctor Shadowing Science cal InternshiP calculated 10O kPa can be reported as 1 bar The actual atmospheric pressure at any location depends on weather conditions and altitude Another pressure unit is pounds per square inch psi lbsin At sea level atmospheric pressure is 147 psi Give It Some Thought a Assume that the top of your head has a surface area of 25 cm X 25 cm How many newtons of force push on your head at sea level? b If you estimate this area to be 100 in what is the force in pounds? Tn the seventeenth centtury many scientists and philosophers believed that the atmosphere had no weight Evangelista Torricelli 1608-1647 a student of Galileo's proved this untrue He invented the barometer Eigurs 102 which is made from a glass tube more than 760 mm long that is closed at one end completely filled withmercury and inverted into a dish cof mercury CCare must be taken so that noaitgets into the tube When the tbelsinyerted into the dish some of the mercury flowsout of the tube but a Column of nercury remins in the tube Iorricelli argued thatthe mercury surface in thhe dish experiençes the Wul toreainat How do I do A? I got 6405 N but I have no idea if that is correct? Meme

## Weather

found ON 2019-09-09 14:13:12 BY astrologymemes.com

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