In 1656, the Burgmeister (mayor) of the town of Magdeburg, Germany, Otto Von Guericke, carnied 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 0.420 m (1.38 feet) with a rubber seal in between are placed together and air pumped out so that the pressure inside is 13.00 millibar. The atmospheric pressure outside is 960 millibar. Calculate the force required to pull the two hemispheres apart. INote: 1 millibar= 100 N/m?. One atmosphere is 1013 milibar = 1.013x105 N/m? ) Submit AnasarcT Two equal teams of horses, are attached to the hemispheres to pull it apart. If each horse can pull with a force of 1480N (L.e., about 333 Ibs), what is the minimum number of horses required? Sub

In 1656, the Burgmeister (mayor) of the town of Magdeburg, Germany, Otto Von Guericke, carnied 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 0.420 m (1.38 feet) with a rubber seal in between are placed together and air pumped out so that the pressure inside is 13.00 millibar. The atmospheric pressure outside is 960 millibar. Calculate the force required to pull the two hemispheres apart. INote: 1 millibar= 100 N/m?. One atmosphere is 1013 milibar = 1.013x105 N/m? ) Submit AnasarcT Two equal teams of horses, are attached to the hemispheres to pull it apart. If each horse can pull with a force of 1480N (L.e., about 333 Ibs), what is the minimum number of horses required? Sub