Question

The area of a circular swimming pool is approximately 18m What is the radius​

Answer 1

Answer:

Hiiiiiiii ! :) so here's a step by step explanation okay, starting with the first step below. Hope it helps you ! :) :)

Step-by-step explanation:

Begin with the volume of water:  

V = πr²×h = π×(9m)²×2.5m = 636.17m³  

Weight of water = 636.17×10³kg  

G force on water = 9.8m/s²×636.17×10³kg = 6,234.49kN  

Water's center of gravity is 2.75m below edge of pool.  

(2.5m/2 = 1.25m, 4m - 1.25m = 2.75m)  

Work = force × distance = 6,234.49kN × 2.75m = 17,144.85

Hope i helped. <3

Answer 2

Answer:

r≈2.39

Step-by-step explanation: