The water in your house or apartment most likely comes from a water main pipe that is buried under the street. This is a large diameter pipe from which smaller pipes branch off from and go to individual houses. This water main pipe carries water at high pressures, and in Madison, Wisconsin (where these videos were taken), the pressure in this pipe comes from a water tower, where the water is held 46 meters above the height of the water main pipe. 1. Knowing this, calculate what the pressure in the water main is. Hint: Consider the water tower to be your zero reference height, and calculate the water main pressure at the depth below the tower. Don't forget to include atmospheric pressure = 101kPa.
The water in your house or apartment most likely comes from a water main pipe that is buried under the street. This is a large diameter pipe from which smaller pipes branch off from and go to individual houses. This water main pipe carries water at high pressures, and in Madison, Wisconsin (where these videos were taken), the pressure in this pipe comes from a water tower, where the water is held 46 meters above the height of the water main pipe. 1. Knowing this, calculate what the pressure in the water main is. Hint: Consider the water tower to be your zero reference height, and calculate the water main pressure at the depth below the tower. Don't forget to include atmospheric pressure = 101kPa.
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Transcribed Image Text:Water Main Pressure
Calculate the pressure in the water main
The water in your house or apartment most likely comes from a water main pipe that is buried
under the street. This is a large diameter pipe from which smaller pipes branch off from and go
to individual houses. This water main pipe carries water at high pressures, and in Madison,
Wisconsin (where these videos were taken), the pressure in this pipe comes from a water
tower, where the water is held 46 meters above the height of the water main pipe.
1. Knowing this, calculate what the pressure in the water main is.
Hint: Consider the water tower to be your zero reference height, and calculate the water main
pressure at the depth below the tower. Don't forget to include atmospheric pressure = 101kPa.
Calculating water velocity
The path of a stream of water shooting through the air can be calculated using the same
equations of motion that are used to calculate the path of a thrown ball. By measuring the
distance the stream travels before it hits the ground, the velocity of the water coming out of a
hose can be determined.
Water Main
PM. V=0
1m.
1m
This image illustrates the overall path of the water from the main to the hose.
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