Module 4 - CH 4 HW - Module 4 CH 4 HW 10:13 AM WebAssign...

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9/2/16, 10:13 AM Module 4 - CH 4 HW Page 1 of 7 Current Score : 98.16 / 100 Due : Sunday, September 4 2016 11:59 PM EDT 1. 7.14/7.14 points | Previous Answers The water in the plumbing in a house is at a gauge pressure of 210,000 Pa. What force does this cause on the top of the tank inside a water heater if the area of the top is 0.7 m 2 ? (Ignore atmospheric pressure.) 147000 N Show My Work (Optional) 2. 7.14/7.14 points | Previous Answers A viewing window on the side of a large tank at a public aquarium measures 51 in. by 56 in. The average gauge pressure from the water is 3 psi. What is the total outward force on the window? 8568 lb Show My Work (Optional) 3. 7.14/7.14 points | Previous Answers A small statue is recovered in an archaeological dig. Its weight is measured to be 5.3 lb and its volume 0.07 ft 3 . (a) What is the statue's weight density? 75.7 lb/ft^3 (b) What substance is it, most likely? Show My Work (Optional) Module 4 - CH 4 HW (Homework) Donald Distler PHYS 102 AUG 2016 Online, section Krupp, Fall 2016 Instructor: Robert H Krupp WebAssign lead juniper wood silver ebony wood brass
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9/2/16, 10:13 AM Module 4 - CH 4 HW Page 2 of 7 4. 7.14/7.14 points | Previous Answers A certain part of an aircraft engine has a volume of 1.9 ft 3 . (a) Find the weight of the piece when it is made of copper . 1062.1 lb (b) If the same piece is made of aluminum, what is its weight? 321.1 lb Determine how much weight is saved by using aluminum instead of copper . 741 lb Show My Work (Optional) 5. 7.14/7.14 points | Previous Answers The depth of the Pacific Ocean in the Mariana Trench is 36,198 ft. What is the gauge pressure at this depth? 16163.4 psi Show My Work (Optional) 6. 7.14/7.14 points | Previous Answers A storage tank 22 m high is filled with pure water . (Assume the tank is open and exposed to the atmosphere at the top.) (a) Find the gauge pressure at the bottom of the tank. 2.16e5 Pa (b) Calculate the magnitude of the force produced by the fluid that acts on a square access hatch at the bottom of the tank that measures 0.3 m by 0.3 m. 1.94e4 N Show My Work (Optional) 7. 7.14/7.14 points | Previous Answers A modern-day zeppelin holds 7,120 m 3 of helium. Compute its maximum payload at sea level. (Assume the helium and air to be at 0°C and 1 atm.) 77451.4 N Show My Work (Optional) 8. 7.14/7.14 points | Previous Answers A juniper-wood plank measuring 0.47 ft by 1 ft by 14 ft is totally submerged in water.
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