3. Mr. Torricelli, back in the first half of the 1600s created a method to measure the ambient pressure, using a bowl of

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3 Mr Torricelli Back In The First Half Of The 1600s Created A Method To Measure The Ambient Pressure Using A Bowl Of 1 (114.73 KiB) Viewed 39 times

3. Mr. Torricelli, back in the first half of the 1600s created a method to measure the ambient pressure, using a bowl of mercury and a thin tube, with vacuum at the top and open at the bottom into the bowl. The atmosphere exerted pressure on the mercury in the bowl, and the mercury in the capillary would rise or fall according to fluctuations in ambient pressure. During equilibrium, the force of the ambient pressure on the mercury in the bowl is balanced by the force of gravity of the column of mercury in the capillary. What is the atmospheric pressure, given the diagram of this apparatus? Give your answer in kPa. (5-4-0) vacuum Patm mercury L = 0.7 m