College Physics

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?

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  1. 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.

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  2. thank you

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