A sealed cylindrical steel can rests below the surface of water. What is the source of the upthrust acting on the can?
- AThe air pressure in the can is less than the water pressure outside the can.
- BThe average density of the air and steel is less than the density of water.
- CThe water pressure on the bottom of the can is greater than the water pressure on the top.
- DThe weight of displaced water acts upwards on the can.