Determine the discharge of a river that is 10 m wide, has a semicircular cross-sectional area, and has a velocity of 3 m/s.

117.8 m³/s

Explanation:

given that

the diameter of the river, d = 10 m wide

Velocity of flow of water, v, = 3 m/s

To get the discharge of a river, we have to find the area of the said river first.

Area of the river, a = area of semi circle = 1/2 * area of a circle

Area = 1/2 * πr²

Area = 1/2 * 3.142 * 5²

Area = 39.275 m²

Discharge of the river therefore is

Discharge, q = A * V, where

A is area of the river, and

V is the velocity of flow of the river.

Discharge, q = 39.275 * 3

Discharge, q = 117.825

answer: the direction of the wind is expressed as the direction from which the wind is blowing. for example, easterly winds blow from east to west, while westerly winds blow from west to east.

explanation:

15.3 cos 65 degrees trig