Recent content by Gman2013

Looking at the problem again I did forget buoyant force so... Weight=buoyant force when an object floats... Analysis of the system bernoullis eqations at three points 1. top of sea water 2. At concrete disc 3. surface of freshwater Would I calculate the pressures at the points to figure...

Homework Statement The problem: There is an illustration and the question is to find the force F to lift a concrete block gate if the the concrete weighs 160 lb/ft3. The block is 3' in diameter and 1' thick. It is in a tank of fresh water 15 ft down. the specific weight of the fresh water...