Which of the following best explains Archimedes' principle?

A solid ball of volume $V$ and density less than that of water is floating on the surface of water. How much force must be applied downward to just submerge the ball completely under water?

Will the same ship float higher in $\mathrm{salt} \mathrm{water}$ than in $\mathrm{freshwater}$? Choose the best explanation.

In a fluid of uniform density, does the magnitude of the $F$_b (buoyant force) acting on a fully submerged object increase as the object is placed deeper in the fluid?

If the entire apparatus is completely submerged in water, which of the following statements about the buoyant force acting on it is correct?

A helium balloon of volume $V$ is fully submerged in air of density ${\rho }_{\mathrm{air}}$ under standard atmospheric pressure. What is the magnitude of the buoyant force $F_b$ acting on the balloon?

When heavy cargo is placed on a ship, how does the ship remain in isostatic equilibrium according to the principle of buoyancy?

You are docking your boat and the current is pushing you toward the dock. What is the best way to dock?