14. An environmental systems technician measures air pressure at oach end of a duc. The first measurement is 0.042 lb/sq Inch and the second measurement is 0.026 ib/aq inch. What is the pressure drop between the ends?
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- Dr. B uses his phone and the app phyphox to measure atmospheric pressure at different heights. At the first floor of the UMass W.E.B. DuBois Library he measures a pressure of 101300 Pa. He then takes the elevator to the roof of the library and measures a pressure of 100172 Pa. If the density of the air is 1.205kg/m33, what is the height of the library? a. 124 m b. 96 m c. 76 m d. 67 m e. 105 m3. One of the dangers of tornados and hurricanes is the rapid drop in air pressure that is associated with such storms. Assume that the air pressure inside of a sealed house is 1.02 atm when a hurricane hits. The hurricane rapidly decreases the external air pressure to 0.910 atm. A square window in an outside wall of the house measures 2.02 m on each side. What is the magnitude of the net force (directed outwards) exerted on this window? (1 atm = 1.0135 x 105 Pa.)An airplane passenger has 100 cm3 of air in his stomach just before the plane takes off from a sea-level airport. What volume will the air have at cruising altitude if cabin pressure drops to 7.50 X 104 N/m2?
- A vacuum-style lift assist exerts a vertical force on an object by attachment of one or more suction cups to the top of that object. For a lift with four suction cups to provide at least 500 N of lifting force, what is the minimum vacuum pressure (mm Hg) allowable inside each 76-mm-diameter cup attached to the object? Pcup i mm HgTire gauges for air pressure, as well as most other gauges used in an industrial environment take into account the pressure due to the atmosphere of earth. That's why your car gauge reads 0 before you put it on your tire to check your pressure. That is called gauge pressure. The real pressure within a tire or other object contains pressurized stuff would be a combination of what the gauge reads as well at the atmospheric pressure. If a gauge on a tire reads 40.16 psi, what is the real pressure in the tire in pascals. The atmospheric pressure is 1.01x10^5 Pa.9. A liquid is flowing through a horizontal pipe whose radius is 2.18 x 10-2 m. The pipe bends straight upward through a height of 10.6 m and joins another horizontal pipe whose radius is 4.36 x 10-2 m. What is the speed of the liquid in the lower horizontal pipe if the pressure in both horizontal pipes is the same? m/s MAR 27 888 5 T G 6 B tv MacBook Air H 8 N 8 DIE A F10 zoom oup by mi 04 M vauies or the puffer Am
- The height of mercury in a barometer is measured at 85.0 cm. Compute for the atmospheric pressure.20) The absolute pressure is A the gauge pressure minus the atmospheric pressure B the gauge pressure plus the atmospheric pressure C the atmospheric pressure plus 14.7 psi D the gauge pressure divided by the minus the atmospheric pressure