1. A swimming pool has the following dimensions: 15 m long; 5 m wide; 2 m deep. a. By how much would the pressure at the bottom be larger or smaller than the pressure 1 m below the water's surface? b. What is the magnitude of the force acting on each depth?
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- 4. The gauge pressure underwater is the difference between atmospheric pressure and absolute pressure. Which of these expressions yields the gauge pressure in SI units at a depth of 751 meters under water of density 1000 kg/m^3? a. 1000 times 9.8 times 751 b. 1000 times 9.8 divided by 7515. You are designing a diving bell to withstand the pressure of seawater at a depth of 250 m. a. What is the gauge pressure at that depth? b. What is the net force due to the water outside and the air inside the bell on a circular glass window 30.0 cm in diameter if there is 1.00 atm of pressure inside the bell.Over the summer I decide to supplement my income educational offerings by building a glass-bottomed boat to drive around Lake Michigan. The glass floor is a rectangle, two meter by three meters, and that floor lies one meter below the water's surface. What additional force pushes up on the glass floor due to the increased gauge pressure underwater? a 10,000 N b 40,000 N c 60,000 N d 120,000N
- 5. Eileen is floating on her back in the beautiful blue Caribbean during her spring vacation. If Eileen’s density is 980 kg/m^3 and she has a volume of 0.060m^3, what is the buoyant force that supports her in the sea water of density 1025 kg/m^3? a. 580 N b. 600 N c. 560 N d. 550 N e. None of the aboveA very deep point of the Pacific Ocean is at a depth of 10,100 m below the surface. What is the gauge pressure in the water at that point? The density of seawater is 1025 kg/m3. Ignore the slight variations of g and ρ with depth. Assume g = 9.80m/s2. Assume 3 significant digits. A. 8.88 ×107 Pa B. 2.22 ×108 Pa C. 1.11 ×108 Pa D. 1.01 x108 Pa E. 3.33 ×108 Pa F. 5.55 ×107 Pa3. Given a square board of area 0.00500 m^2. A small statue of mass 400 grams is placed on the board. Which expression yields the pressure of the statue on the board in SI units? a. 0.400 times 9.8 divided by 0.00500 b. 0.400 times 0.00500
- Fluids & Pressure 16. A 50.0-kg woman balances on one heel of a pair of high heeled shoes. If the heel is circular and has a radius of 0.500 cm, what pressure does she exert on the floor? 17. A glass tube contains mercury. What would be the height of the column of mercury which would create pressure equal to 1.00 atm? 18. A straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. What is the density of a 240-g rock that displaces 89.0 cm³ of water?An object of volume 2.00 m^3 is fully submerged in water ( ?water=1000.00 kg/m^3 ). In order to keep the object stationary, an upward force of 7600.00N must be applied to keep the object from sinking. Determine the density of the object. a. 612.24 kg/ m^3 b. 19600.00 kg /m^3 c. 387.76 kg /m^3 d. 12000.00 kg/ m^3 e. 1387.76 kg/ m^310. A container is filled with water as shown in the figure. Points A, B, C, and D indicates the pressure exerted by the liquid. Arrange the points based on the magnitude of the pressure exerted by the liquid in a descening order. D. Ignore the question number, just try it out! O D. B, A, C О В. С, А, D O C, A, B, D O A. C, B, D