Part A: Explain why we do not measure the rate at which a sprinkler waters a lawn in cubic feet per minute? In your explanation, use reasoning based on appropriate units to model this situation.
Part B: What are the two quantities that should be measured to find the rate at which a sprinkler waters a lawn? Explain how the rate can be determined.

Question

Part A: Explain why we do not measure the rate at which a sprinkler waters a lawn in cubic feet per minute? In your explanation, use reasoning based on appropriate units to model this situation. 
Part B: What are the two quantities that should be measured to find the rate at which a sprinkler waters a lawn? Explain how the rate can be determined.

wolf1728 · Answer

It could be expressed in gallons per minute. For example 1 cubic foot per minute could also be expressed as 28.31685 liters per second. The reason it isn't stated in cubic feet per second is because (and this is really going overboard about definitions) is that the cubic foot is a measure of capacity and volume whereas the gallon is a measure of FLUID volume. http://en.wikipedia.org/wiki/United_States_customary_units

anonymous · Answer

Do you know anything about part B?!

wolf1728 · Answer

I'd guess the two quantities to measure are volume and time.  (For example, gallons per minute).
How can the rate be determined?  (That seems like an easy question).  
Get a gallon jug and time it with your watch.

anonymous · Answer

Thank you :)

wolf1728 · Answer

u r welcome