Question

A severe thunderstorm dumped 2.9 in of rain in 30 min on a town of area 35 km2. What mass of water fell on the town? One cubic meter of water has a mass of 103 kg.

Answer 1

Mass of water fell on the town =
`2.58*10^9 kg`

Step-by-step explanation:

The mass of one cubic meter water =
`10^3kg`

We need to find volume of water in cubic meter to find total mass fell on the ground.

We know volume = Area* Height

Area =
`35 km^2=35*10^6m^2`

Height = 2.9 inch = 0.07366 m

Volume =
`35*10^6*0.07366= 2.5781*10^6m^3`

Mass of water =
`2.5781*10^6*10^3=2.58*10^9 kg`