The volume of water that goes into the hose is the same as the volume of water that comes out the nozzle. This means the velocity is inversely proportional to the area. The area is proportional to the square of the diameter.
Taken together, these facts mean that if the diameter is divided by a factor of 3, the velocity is multiplied by a factor of 3^2 = 9.
Nozzle velocity = 3^2 * entering velocity
.. = 9 * (4 m/s)
Nozzle velocity = 36 m/s . . . . . . . . . corresponding to selection A
Leave the whole number alone for now. Divide 41 by 80 and you get 0.5125
So your answer is 9.5125
Answer:
Step-by-step explanation:
Answer:
75%
Step-by-step explanation:
15+15+25+5=60
15/60=25%
100%-25% = 75%