A cylindrical tank with diameter 20in. Is half filled with water. How much will the water level in the tank rise if you place a metallic ball with radius 4in. In the tank? What causes the water level in the tank to rise? Which volume formula should be used?
The ball will displace its own volume of water, namely (4/3)*pi*4^3 cubic inches.
This will appear as an increase in height, h, of the water in the tank such that pi*(20^2)/4*h = (4/3)*pi*4^3
or h = (4/3)*4^4/20^2 in.
h=(43)×44202⇒h=0.8533333333333333
so h ≈ 0.853 in.
(Note: The cross-sectional area of the tank is given by pi*diameter^2/4).
The ball will displace its own volume of water, namely (4/3)*pi*4^3 cubic inches.
This will appear as an increase in height, h, of the water in the tank such that pi*(20^2)/4*h = (4/3)*pi*4^3
or h = (4/3)*4^4/20^2 in.
h=(43)×44202⇒h=0.8533333333333333
so h ≈ 0.853 in.
(Note: The cross-sectional area of the tank is given by pi*diameter^2/4).