What is the velocity in meters per second of a runner who runs exactly 110 m toward the beah in 72 seconds?

a). 0.654 m/s toward the beach c). 15.3 m/s toward the beach
b). 1.53 m/s toward the beach d). 7920 m/s toward the beach

If a small-diameter open glass tube is partially immersed in a vessel containing mercury, the surface of the mercury inside the tube will be a. lower than the mercury in the vessel, and shaped like the inside of a bowl. b. higher than the mercury in the vessel, and shaped like the inside of a bowl. c. lower than the mercury in the vessel, and shaped like the outside of an umbrella. d. higher than the mercury in the vessel, and shaped like the outside of an umbrella.