The tank is 1/2 full of water. The. A spherical wrecking ball with radius of 2ft is dropped into the tank. How far will the water level rise once the sphere is completely submerged?

I cant figure it out. I've been trying for two days now. And its due..

One would think that after trying this for two days, you might realize that you don't have enough information.

e.g. If your tank is a large rectangular tank of 10 ft by 10 ft the water level would rise more than if your "tank" had been a swimming pool.

To find out how far the water level will rise when the spherical wrecking ball is completely submerged, you need to calculate the volume of the wrecking ball and then determine the corresponding increase in the water level.

Here's how you can approach the problem:

1. Calculate the volume of the spherical wrecking ball:
The volume of a sphere is given by the formula V = (4/3)πr³, where r is the radius of the sphere.

Given that the radius of the wrecking ball is 2 ft, you can substitute this value into the formula to find its volume.

V = (4/3)π(2³)
V = (4/3)π(8)
V = (32/3)π
V ≈ 33.51 ft³

Therefore, the volume of the wrecking ball is approximately 33.51 cubic feet.

2. Determine the increase in water level:
Since the tank is already half-full, you need to find the volume of water required to fill the tank half-way.

Let's assume the total volume of the tank is T ft³. In this case, the volume of water already in the tank is T/2 ft³.

When the wrecking ball is submerged, it displaces water equal to its own volume. So, the increase in water level will be equal to the volume of the wrecking ball (33.51 ft³).

Therefore, the increase in water level will be equal to the volume of the wrecking ball divided by the total tank volume:

Increase in water level = Volume of wrecking ball / Total tank volume
Increase in water level = 33.51 ft³ / T ft³

However, since T is unknown in the given problem, we can't determine the exact increase in water level without additional information about the tank's total volume.

If you have the dimensions or volume of the tank, you can substitute that value and calculate the increase in water level accordingly.

Remember, the solution depends on knowing the total volume of the tank. Without that information, it is not possible to provide a definitive answer.