Question

In: Physics

A firehose must be able to shoot water to the top of a building 38.0 m...

A firehose must be able to shoot water to the top of a building 38.0 m tall when aimed straight up. Water enters this hose at a steady rate of 0.515 m3/s and shoots out of a round nozzle.

(a) What is the maximum diameter this nozzle can have?
1 __________ cm

(b) If the only nozzle available has a diameter twice as great, what is the highest point the water can reach?
2______________

Solutions

Expert Solution

1)

(a)

Rate of Volume of liquid flowing (V/t) = Area(A) * Velocity(v).

                                       

                                        

D = 0.155 m = 15.5 cm

2)

If Diameter is doubled the maximum height reached by the water can be calculated using equation of continuity.

                             

         

               

h2 = 2.375 m

genius_generous answered 1 year ago
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