$9\mathrm{.}20$ In this assignment you will investigate how

much water may be wasted by a leaky faucet.

Place a large cup under a leaky faucet. If you

don't have a leaky faucet at home, open the

faucet so that it just drips into the cup. Record

the time that you started the experiment.

Allow the water to drip into the cup for

about an hour or two. Record the time when

you remove the cup from under the faucet.

Determine the mass flow rate. Estimate the water wasted by $100000$ people woth leaky faucets during a period of one year.