Areservoir has a surface area of 30 km^2 and an average depth of 49 m. what mass of water is held behind the dam?

Mass of water,

Explanation:

Given that,

Surface area of the reservoir, A = 30 km² = 3 × 10⁷ m²

Average depth, d = 49 m

The volume of the reservoir is V such that,

We have to find the mass of water is held behind the dam. It can be calculated using the expression for density. We know that density of water, d = 1000 kg/m³

Density,

Hence, this is the required solution.

resonant frequency