Question

A heavy 9cm diameter ball is placed in an empty cylindrical tin of diameter 12cm. Enough water is poured into the can to cover the ball.if the ball is then removed , how far does the water level fall

Answer 1

volume of sphere = (4/3)pi r^3

pi R^2 h = (4/3) pi r^2

h = (4/3) r^2/R^2

Answer 2

please I used the above formula but the answer not correct