Water Is Pumped into One End of a Long Pipe

question 40

Multiple Choice

Water is pumped into one end of a long pipe at the rate of 40 L/min.It emerges at the other end at 24 L/min.A possible reason for this decrease in flow is:

• A)the water is being pumped uphill
• B)the water is being pumped downhill
• C)the diameter of the pipe is not the same at the two ends
• D)friction in the pipe
• E)a leak in the pipe