Question

The density of steel is about 8 times that of water. What is the effective weight (in pounds) of a 223 lb steel girder in water, i.e., with what upward force (in pounds) must someone apply to the girder to lift it under water?

Answer 1

The density of steel is about 8 times that of water. What is the effective weight (in pounds) of a 200 lb steel girder, i.e., with what force would someone underwater have to exert to carry this girder, when it is complete submerged in water? Question 2 1 pts The average density of a human is approximately 985 kg/m3. (Note, it is smaller when the lungs are filled with air.) Hence, what percentage of a person's body would lie above the surface of a lake in which the person was floating.