A fire breaks out in the Metcalf Science Building (SCI). Thankfully, the Boston Fire Department comes right away. The firefighters connect their hose to the nearby fire hydrant and begin to extinguish the fire as quickly as possible. Assume that the atmospheric pressure is = 1.00 atm. Density of water = 1000 kg/m3 and g = 9.81 m/s2. a) If water is leaving the hose at a speed of 28.0 m/s, how high above the ground can the water reach? You may assume the exit point of the water from the hose is at ground level. _______ m b) The fire hydrant is supplied by a large water pipe underground. The pipe’s radius is 4 times larger than that of the water hose used by the firefighters, and it is buried 5.00 m into the ground. When the fire hydrant is used, how fast would water be flowing through the pipe?
A fire breaks out in the Metcalf Science Building (SCI). Thankfully, the Boston Fire Department comes right away. The firefighters connect their hose to the nearby fire hydrant and begin to extinguish the fire as quickly as possible.
Assume that the atmospheric pressure is = 1.00 atm. Density of water = 1000 kg/m3 and g = 9.81 m/s2.
a) If water is leaving the hose at a speed of 28.0 m/s, how high above the ground can the water reach? You may assume the exit point of the water from the hose is at ground level.
_______ m
b) The fire hydrant is supplied by a large water pipe underground. The pipe’s radius is 4 times larger than that of the water hose used by the firefighters, and it is buried 5.00 m into the ground. When the fire hydrant is used, how fast would water be flowing through the pipe?
_______ m/s
c) Calculate the water pressure inside the underground pipe from Part B.
_______ kPa
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