Course Contents >> Homework uestions >> Homework set # 8 ( due Weds ... Object in W Timer Notes Evaluate By Fee An object with a density of 771.0 kg/m' and a mass of 1759.0 kg is thrown into the ocean. Find the volume that sticks out of the water. (use Pseawater = 1024 kg/m') Sea Level USS Knowledge Object. ' Course Contents Homework Questions Homework set # 8 ( due Magdeburg hemispheres 4 eTimer E Notes [ii Evaluate gFeedback a Print @Info In 1656, the Burgmeister (mayor) of the town of Magdeburg, Germany, Otto Von Guericke, carried out a dramatic demonstration of the effect resulting from evacuating air from a container. It is the basis for this problem. Two steel hemispheres of radius 0.450 m (1.48 feet) with a rubber seal in between are placed together and air pumped out so that the pressure inside is 18.00 millibar. The atmospheric pressure outside is 970 millibar. Calculate the force required to pull the two hemispheres apart. W [Note: 1 millibat=100 N/m2. One atmosphere is 1013 millibar = 1.013x 105 N/m2 ] Submit Answer Tries 0/20 Two equal teams of horses, are attached to the hemispheres to pull it apart. If each horse can pll with a force of 1450N (i.e., about 326 lbs), what is the minimum number of horses required? Submit Answer Tries 0/20 . . Course Contents Homework Questlons Homework set # 8 ( due Floatlng sphere (BB) 4 e 11mer |_| Notes } . Eva|uate \"Feedback 6 Print anfo A solid, homogeneous sphere with a mass of mg, a radius of to and a density of po is placed in a container of water. Initially the sphere oats and the water level is marked on the side of the container. What happens to the water level, when the original sphere is replaced with a new sphere which has djerent physical parameters? Notation: r means the water level rises in the container, f means falls, 5 means stays the same. Combination answers like 'f or s' are possible answers in some of the cases. f The new sphere has a radius of r = r0 and a density of p > p0. r The new sphere has a radius of r [70. r The new sphere has a mass of m pg. 5 The new sphere has a radius of r 1110. Use Archimedes's Principle. Course Contents > Homework Questions >> Homework set # 8 ( due Weds ... > Water jet A jet of water squirts out horizontally from a hole near the bottom of the tank, as seen in the figure. Assume that x = 1.25 m and y = 1.90 m. What is the speed of the water coming out of the hole? Submit Answer Tries 0/20 If the hole has a diameter of 3.38 mm, then what is the height, h, of the water level in the tank