Question 18 please and thank you (a) Find the weight of the piece when it is made(b) If the same piece is made of aluminum, what is itsweight? Determine how much weight is saved by usingaluminum instead of iron.13. The volume of the Drop Tower "Bremen" (a 100-meter-talltube used to study processes during free fall) is 1,700 m.(a) What is the mass of the air that must be removed fromit to reduce the pressure inside to nearly zero (1 Pacompared to l100,000 Pa)?(b) What is the weight of the air in pounds?14. It is determined by immersing a crown in water that itsvolume is 26 in.$ 0.015 ft.28(a) What would its weight be if it were made of pure gold?(b) What would its weight be if its volume were half gold andhalf lead?215. Find the gauge pressure at the bottom of a swimming poolthat is 12 ft deep.16. The depth of the Pacific Ocean in the Mariana Trench is36,198 ft. What is the gauge pressure at this depth?17. Calculate the gauge pressure at a depth of 300 m in seawater.18. A storage tank 30 m high is filled with gasoline.(a) Find the gauge pressure at the bottom of the tank.(b) Calculate the force that acts on a square access hatch atthe bottom of the tank that measures 0.5 m by 0.5 m.19. The highest point in North America is the top of MountMcKinley in Alaska, 20,320 ft above sea level. UsingFigure 4.30, find the approximate air pressure there.20. The highest altitude ever reached by a glider (as of thiswriting) is 15,460 m. What is the approximate air pressure atthat altitude?21. An ebony log with volume 12 ft is submerged in water. Whatis the buoyant force on it?22. An empty storage tank has a volume of 1,500 ft. What is thebuoyant force exerted on it by the air?23. A blimp used for aerial camera views of sporting events holds200,000 ft of helium.(a) How much does the helium weigh?

Name: Question 18 please and thank you (a) Find the weight of the piece when
Uploaded: 2024-03-20T06:51:10.000Z
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Description: Question 18 please and thank you (a) Find the weight of the piece when it is made(b) If the same piece is made of aluminum, what is itsweight? Determine how much weight is saved by usingaluminum instead of iron.13. The volume of the Drop Tower "Breme