🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Physics
1
answer
0
watching
174
views

A mercury manometer shown in the figure contains air at the cuff pressure P. The difference in mercury heights between the left tube and the right tube is h = 115 mm. What is the gauge pressure? The density of mercury is 13600 kg/m3, and the ambient pressure is P0 = 101000 Pa.

Watch
1
answer
0
watching
174
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Amal Jeeva
Amal JeevaLv10
7 Jan 2021

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

(a) Using Bernoulli's equation, show that the measured fluid speed v for a pitot tube, like the one in Figure 12.7 (b), is given by  where h is the height of the manometer fluid, is the density of the manometer fluid, is the density of the moving fluid, and g is the acceleration due to gravity. (Note that v is indeed proportional to the square root of h, as stated in the text. (b) Calculate v for moving air if a mercury manometer's h is 0.200m. 

Figure 12.7 Measurement of fluid speed based on Bernoulli's principle. (a) A manometer is connected to two that are close togeter and small enough not to disturb the flow. Tube 1 is open at the end facing the flow. A dead spot having zero speed is created there. Tube 2 has an opening on the side, and so the fluid has a speed V across the opening; thus, pressure there drops. The difference in pressure at the manometer is , and so h is proportional to .

(b) This type of velocity measuring device is a Prandtl tube, alos known as a pitot tube.

Mercury is poured into a U-tube as in Figure (a). The left arm ofthe tube has a cross-sectional area A1 of 101.0 cm2, and the rightarm has a cross-sectional area A2 of 5.80 cm2. Two hundred grams ofwater are then poured into the right arm, as in Figure (b).
(a) Determine the length of the water column in the right arm ofthe U-tube.(b) Given that the density of mercury is 13.6 g/cm3,what distance h does the mercury rise in the left arm?
http://www.webassign.net/pse/p15-18.gif (Check this website forfigures).

A venturi tube is a tube with a constriction in it. Pressure ina venturi tube can be measured by attaching a U-shaped fluid-filleddevice to the venturi tube as shown in the figure above.The densityof air is 1.20 kg/m3 and the density of water is 1000kg/m3. Use g = 10 m/s2.

(a) If the fluid in the U is water, and there is a 10.0 cmdifference between the water levels on the two sides, what is themagnitude of the pressure difference between points 1 and 2 in theventuri tube? (Pa)

(b) The venturi tube has air flowing through it. If thecross-sectional area of the venturi tube is 2 times larger at point 1 than it is atpoint 2, what is the air speed at point 2? (m/s)

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in