NSB Sample Questions / Content

A 2-liter container is filled with 3 moles of an ideal gas at 150 kelvins. What is the pressure of the gas, in atmospheres, to two significant figures. - 18 A famous principle of fluid mechanics, traditionally attributed as the explanation behind lift on an airplane wing, is named after what scientist? - Bernoulli A geometric sequence has third term 1 and fourth term -3. What is its first term? - 1/9 A metal disk has a moment of inertia of 5.0 x 10 -3 kilogram meters squared. If the disk is rotating with 9 joules [jools] of kinetic energy, what is the angular speed, in radians per second, of a point on its rim? - 60 A metal rod expands when heated. Identify all of the following 4 properties of the rod that would affect its fractional change in length: 1) Original length; 2) Mass; 3) Temperature change; 4) Material composition. - 3 and 4 A particle has a position defined by the equation x = 3t + 18. What is the acceleration of the particle at t = 5? - Zero A pool of water and the surrounding air are at thermal equillibrium. Identify all of the following 3 molecular-level properties that are statistically equal between the two substances: 1) Internal energy; 2) Kinetic energy; 3) Velocity. - None A regular hexagon is inscribed in a circle of diameter 16. What is the area of the hexagon? - A right circular cylinder has height 9 and diameter 14. What is its surface area? - 224π A sample of an ideal gas has a volume of 1 cubic meter at standard temperature and pressure. Which of the following is closest to the number of molecules in the sample? - 2.7 times 10 to the 25thA standing wave is produced on a string fixed at both ends. What is the number of antinodes minus the number of nodes? - -1 A task takes a single computer processor 10 days to complete. For this task, each successive processor added in parallel reduces the computation time needed by 50%. How many processors would need to be used for this task so that it could be completed in under one hour? - 9 According to predictions by the Department of Energy, which of the following is closest to the percentage of U.S. gasoline and diesel use that could be replaced using biofuels from agricultural and forestry waste? - 30 After a long period of deflation by the wind, a desert will be reduced to a layer of cobble that is resistant to further deflation. What is the term for this layer of cobble? - Desert pavement As x increases from -π to π, how does the value of cosine x change? - Increases then decreases Chemistry - Short Answer Rank the following three barium salts in terms of increasing water solubility: 1) Barium chlorate; 2) Barium sulfate; 3) Barium hydroxide. - 2, 3, 1