Homework Help: College Physics

Posted by Frank on Sunday, August 22, 2010 at 12:37am.

2 questions:

a)Assuming that water has a density of exactly 1 g/cm3 (cubed), find the mass of one cubic meter of water in kilograms.

b)Suppose that it takes 10 hours to drain a container of 5700m3 (cubed) of water. What is the "mass flow rate," in kilograms per second, of water from the container?

College Physics - drwls, Sunday, August 22, 2010 at 1:01am
a) 1 cubic meter equals 10^6 cm^3.
multiply that by 1.0 g/cm^3 to get the mass in grams. Then convert to kg.

b) 10 hours is 36,000 seconds
5700 m^3 of water has a mass of ___ kg. (Use your answer to part a)

Divide the mass in kg by the time in seconds.
College Physics - Frank, Sunday, August 22, 2010 at 1:10am
thank you

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