Question

suppose that it takes 10.0 h to drain a container of 5700 m^3 of water. what is the "mass flow rate" in kg per second, of water from the container?

Answer 1

Answer:

158.3 kg/s

Explanation:

given,

time to drain water from container = 10 h

volume of water in the container, V = 5700 m³

density of water = 1000 Kg/m³

mass flow rate = ?

mass of water = ρ V

m = 1000 x 5700

m = 5.7 x 10⁶ kg

time of flow = 10 h

                    = 10 x 60 x 60 = 36000 s

the mass flow rate = $\dfrac{mass}{time}$

                               =$\dfrac{5.7\times 10^{6}}{36000}$

                               = 158.3 kg/s

hence, the mass flow rate is equal to 158.3 Kg/s