Buoyancy ing Term: Name: 1. What are the units of density? a. kg · m3 b. N / m2 c. N. m d. none e. kg / m3 2. Archimedes' Principle involves which of the following quantities? a. centripetal forces b. torques c. bouyant forces d. potential energies e. momenta 3. What is the statement of Archimedes' Principle? a. The buoyant force is equal to the weight of submerged fluid. b. The buoyant force is equal to the weight of displaced fluid. c. Volume displaced is equal to volume immersed. d. Eureka! e. The buoyant force points parallel to the gravitational force. 4. Which of the following quantities is intrinsic/intensive (i.e., independent of amount)? a. mass b. density C. volume d. number of moles e. weight 5. A rock of mass M will have a weight Mg when weighed in air. If the rock is tied to a string and weighed while immersed in a fluid with a density that is 1/3 the density of the rock, then its apparent weight will be a. Mg/3 b. 2Mg/3 c. Mg d. ЗMg/2 e. Mg/2 dulum B wing wben the

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Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.