Timah Tasoh dam in Perlis has the dimensions of 20-m high and 770-m wide. It is filled with water of density equals to 1000 kg/m and gravitational force equals to 9.81 m/s². The water from the dam is mixed with soap to make a soap solution and bubbles. When the bubbles are released into the air, they form nearly spherical shape. (i) Name the property of fluid that allow this situation to happen with its symbol. (ii) The soap bubble flew into the air and makes a diameter of 5 cm. If the surface tension of the soap solution in air at 1 atm and 20°C is 0.025 N/m, calculate the gauge pressure inside it.

Timah Tasoh dam in Perlis has the dimensions of 20-m high and 770-m wide. It is filled with water of density equals to 1000 kg/m and gravitational force equals to 9.81 m/s². The water from the dam is mixed with soap to make a soap solution and bubbles. When the bubbles are released into the air, they form nearly spherical shape. (i) Name the property of fluid that allow this situation to happen with its symbol. (ii) The soap bubble flew into the air and makes a diameter of 5 cm. If the surface tension of the soap solution in air at 1 atm and 20°C is 0.025 N/m, calculate the gauge pressure inside it.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A cylindrical disk ofwood weighing 45.0 N and having adiameter of 30.0 cm floats on a cylinderof oil of density 0.850 g /cm3(Fig.). The cylinder of oilis 75.0 cm deep and has a diameterthe same as that of the wood.(a) What is the gauge pressure at thetop of the oil column? (b) Supposenow that someone puts a weightof 83.0 N on top of the wood, butno oil seeps around the edge of thewood. What is the change in pressureat (i) the bottom of the oil and(ii) halfway down in the oil?
A 7-cm-diameter solid aluminum ball (SG = 2.7) and asolid brass ball (SG = 8.5) balance nicely when submergedin a liquid, as in Fig. ( a ) If the fluid is water at20 ° C, what is the diameter of the brass ball? ( b ) If thebrass ball has a diameter of 3.8 cm, what is the density ofthe fluid?
Derive an expression for the capillary- height change h, as shown, for a fluid of surface tension Y and contact angle 0 be- tween two parallel plates W apart. Evaluate for water at 20°C if W = 0.5 mm.
Derive a formula for capillary rise (h) between two concentric glass tubes of radiuses RI and R2. determine its value for water if (G. = 0.072 N/m, RI=30mm, & R2=36mm) (Take smooth and very clean glass tubes).
Pressure in a water container can be measured by an open vertical tube. If the expected water rise is about 20cm. What tube diameter is needed to ensure the capillary action is less than 3%?
A closed cylindrical vessel, 2m in diameter & 4m high is fully filled with water & rotated to its vertical axis at a constant speed of 12.2 rad/sec. The top is pressurized by 180 KPa. (a) What is the pressure at the center bottom of the cylinder? (b) What is the pressure at the circumference bottom of the cylinder? (c) What is the total hydrostatic force at the sides of the cylinder?
Compute the capillary rise of water between two concentric glass tubes of radius r 1 = 2mm, r 2 = 4 mm with a contactangle ϴ = 20ᵒ. Surface tension = 0.07321 N/ m.
A fi sh tank 14 in deep by 16 by 27 in is to be carried in acar that may experience accelerations as high as 6 m/s 2 .What is the maximum water depth that will avoid spillingin rigid-body motion? What is the proper alignment of thetank with respect to the car motion?
The 6-ft-radius waterwheel in Fig. is being used tolift water with its 1-ft-diameter half-cylinder blades. If thewheel rotates at 10 r/min and rigid-body motion is assumed,what is the water surface angle θ at position A ?
Fluid Properties- The difference in pressure between theinside and outside of a soap bubble wasobserved to be 1.6 N/m. If the surfacetension of the liquid is 40 dyne/cm, what will be the diameter of the bubble in meters?
To what height will 68˚F ethyl alcohol rise in a 0.005 in internal diameter glass capillary tube? The density of the alcohol is 49 lbm/ft3 note ? = 0.00156 ???/ ?? and ? = 0°.
A spherical air bubble rises in water. At a depth of 9 m itsdiameter is 4 mm. What is its diameter just as it reaches thefree surface where the absolute pressure is 101.3 kPa? (Surfacetension effects are negligible.)