Question

It takes 20 seconds to fill a two-liter bottle with water from your kitchen faucet. What is the mass flow rate from the faucet if water has a density of 1000 fraction numerator k g over denominator m cubed end fraction?

a. 0.1kg/sec.
b. 0.01kg/sec.
c. 1g/sec.
d. 1kg/sec.

Answer 1

0.1 kg/s.

Step-by-step explanation:

The density of water, d = 1000 kg/m³

Volume, V = 2 L

Time, t = 20 s

We need to find the mass flow rate from the faucet. We know that the density of an object is given by :

`d=(m)/(V)\\\\m=d* V\\\\(m)/(t)=(dV)/(t)\\\\(m)/(t)=(1000* 0.002)/(20)\\\\=0.1\ kg/s`

So, the mass flow rate is equal to 0.1 kg/s.