A bubble of soap solution is drawn along a tube by a ring of the same diameter as the tube, then stretching the bubble between the tube and the ring. Derive the formula for the gauge pressure inside a cylindrical bubble.
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- The plug has a diameter of 30 mm and fits within a rigid sleeve having an inner diameter of 32 mm. Both the plug and the sleeve are 50 mm long. The plug is made from a material for which E= 1 MPa, v=0.7. (Figure 1) Figure Part A Determine the axial pressure p that must be applied to the top of the plug to cause it to contact the sides of the sleeve. Express your answer to three significant figures and include appropriate units. HA P= Submit Part B Value 8 = Request Answer Also, how far must the plug be compressed downward in order to do this? Express your answer to three significant figures and include appropriate units. μÅ 3 Value Submit Provide Feedback Units Request Answer IWIC ? Units www. ?It is a fact that blood flows more rapidly in the aorta than in the capillaries. The cross sectional area of the aorta must be ___________ the total cross sectional area of the capillaries. less than equal to greater than Consider an incompressible liquid flowing in a pipe of constant diameter. ΔP is the pressure difference between the 2 ends of the pipe. Choose the correct statement regarding the volumetric flow. It will decrease with increased ΔP, and increase with greater pipe radius. It will increase with increased ΔP, and increase with greater length of the pipe. it will decrease with greater length of the pipe, and increase with greater pipe radius. it will decrease with increased viscosity of the liquid, and decrease with greater pipe radius.A pipe with a radius of 51 cm has water flowing at 5.3 m/s. If water goes into a new pipe with radius 21 cm, how much will the pressure decrease? ΔΡ- unit Pa
- When you hold your hands at your sides, you may have noticed that the veins sometimes bulge—the height difference between your heart and your hands produces increased pressure in the veins. The same thing happens in the arteries. Estimate the distance that your hands are below your heart. If the average arterial pressure at your heart is a typical 100 mm Hg, what is the average arterial pressure in your hands when they are held at your side?A liquid-filled tube called a manometer can be used to measure the pressure inside a container by comparing it to the atmospheric pressure and measuring the height of the liquid. Such a device (filled with water) is shown in the figure, measuring the pressure inside a balloon filled with an unknown gas. The water level on the side of the manometer which is open to the air is 12.2 cm higher than on the side connected to the balloon. a. Find the gauge pressure in the balloon, in units of Pa. Recall the density of water is 1000 kg/m3. b. Find the absolute pressure in the balloon, in units of Pa.