Asked by Maria
A fire hose has a circular cross-section which has a diameter of 20 cm. The hose is full of water and the water in the hose is flowing at a speed of 5m/s.
How many liters of water can flow from the hose in 1 minute? (1m^3 = 1000 L)
How many liters of water can flow from the hose in 1 minute? (1m^3 = 1000 L)
Answers
Answered by
Reiny
Area of a cross-section is
π(10)^2 = 100π cm^2
5 m = 500 cm
So a volume of 100π(500) or 50000π cm^3 flows every second
or 50000π/1000 L will flow every second
flow is 50π L/sec
so in 1 minute 60(50π) or 3000π L will flow
π(10)^2 = 100π cm^2
5 m = 500 cm
So a volume of 100π(500) or 50000π cm^3 flows every second
or 50000π/1000 L will flow every second
flow is 50π L/sec
so in 1 minute 60(50π) or 3000π L will flow
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