21) There are three blocks floating in water. Block A is a small cube that is 70% submerged into the water. Block B is a large cube that is 40% submerged into the water. Block C is a small sphere that is 50% submerged in the water. Which floating block is the most dense? a. Block A b. Block B c. Block C d. Blocks A and B are tied. e. Blocks B and C are tied. 22) A fisherman rows his boat out to his favorite spot on a pond, where he decided to drop a heavy anchor from his boat. When he drops the anchor into the pond, what happens to the water level of the pond? a. The level of the water in the pond decreases. b. The level of the water in the pond stays the same. c. The level of the water in the pond increases. 23) Which one of the following statements does not describe a property of fluids in motion? a. The fluid flow can be steady or unsteady. b. The fluid flow can be compressible or incompressible. c. The fluid flow can be steadfast or unreliable. d. The fluid flow can be viscous or nonviscous. e. The fluid flow can be turbulent or streamline. 24) Which law, principle, or equation specifies that the mass flow rate of a fluid at two positions along a tube must be constant? a. Archimedes' principle b. Pascal's principle c. Poiseuille's principle d. Equation of continuity e. Bernoulli's principle 25) Complete the following statement: Bernoulli's principle is a statement of.... a. momentum conservation in dynamic fluids. b. energy conservation in dynamic fluids. c. mechanical equilibrium in fluids. d. thermal equilibrium in fluids. e. hydrostatic equilibrium. 26) Water flows from a large pipe to a narrow pipe that is at a higher altitude above the large pipe. What can you say about the speed of the water as it transitions from the larger pipe to the smaller higher pipe? a. Viarge > Vumall b. Varge=Vmall C. Viarge