Choose the most correct statement of Archimedes' Principle below. 0 Buoyancy force is equal to the weight of floating object. O Buoyancy force is equal to the weight of fluid displaced. O Buoyancy force is equal to the weight of object submerged. O Buoyancy force is equal to the ~.r'olumle of fluid displaced. Watching a pendulum swing back and forth, you observe it swinging back and forth ? times over a time of 6 seconds. What is the period of the pendulum? O The period of the pendulum is 1" s. O The period of the pendulum is 2.15 s. O The period of the pendulum is f: s. '3} The period of the pendulum is EL'EI s. C} The period of the pendulum is 1.3 s. Suppose on a stormy night;1 you see a lightning flash then hear the sounds of thunder about 3 seconds later. How far away do you estimate that the lightning struck? 0 Lightning struck about 2.4 km away. O Lightning struck about 1D km away. '33 Lightning struck about 1.D km away. 0 Lightning struck about 1.? km away. O Lightning struck about 1.4 km away