#### Edd

##### Well-known member

A displacer has a diameter of 4 inches and a length of 30 inches. It it is submerged to a depth of 20 inches in a liquid with a specific gravity of 0.8, how many pounds of upward buoyancy force will be exerted on the displacer?

The answer to this is 7.238. I have no idea how to arrive at it. Formulas I'm finding seem to factor the weight of the displacer in this and that is not given in this problem.

Thanks for any help.