heavenly phenomena. For 10 points--name this author of ~On the Revolutions of the Heavenly Spheres." answer: Nicolas _Copernicus_ or Nikolaj _Kopernik_
6. Alfven's theorem states that in a perfectly conducting fluid, the value of this quantity through any closed loop moving with the fluid is constant in time. For a closed surface it is always zero; this is a restatement of one of Maxwell's laws. In MKS, Faraday's law states that the induced emf is equal to its negative time derivative. Often measured in Webers, FTP what quantity is given by the average magnetic field times the perpendicular area it penetrates? Ans: magnetic flux 7. The last major accident caused by this phenomenon occurred in Dallas in 1985. Major studies of it didn't begin until 1975, with the investigation of the crash of Eastern Flight 66 at Kennedy Airport, but pilots now have an automatic alert system and know that it usually occurs in the vicinity of thunderstorms, typhoons and microbursts. For 10 points--name this sudden, drastic change in wind speed or direction that can cause aircraft to lose lift and crash. answer: _wind shear_ 8. A vacuum tube broke, leading to the annealing of the nickel target. Experiments by George Thompson gave the same results. The Faraday box detected peaks where Bragg's condition was satisfied. From the position of the peaks, Bragg's law could be used to determine the lattice spacing in the nickel crystal. Conducted by two physicists at Bell Labs, it confirmed de Broglie's hypothesis. FTP, name this experiment which detected interference patterns indicative of electron diffraction. Ans: ( Clinton ) Davisson - ( Lester ) Germer experiment 9. Tartaric acid can be used as the acid ingredient when an immediate reaction is desired, while sodium acid phosphate will react more slowly with the alkaline ingredient in the presence of moisture to form bubbles of carbon dioxide gas. The most common type uses a combination of sodium aluminum sulfate and calcium acid phosphate and is thus known as double-acting. For 10 points--name this kitchen staple which, in addition to acids, also contains sodium bicarbonate and makes pancakes fluffy through chemistry. answer: _baking powder_ (do not accept: baking soda) 10. The third kind, sometimes called Hankel functions, are complex linear combinations of the first two kinds. The second kind are called Weber or Neumann functions. They form an orthogonal set of solutions to a differential equation of the same name, and are used in the Jacobi-Anger expansion to represent a plane wave as a superposition of cylindrical waves. FTP, name these eponymous functions, sometimes called cylindrical
You've reached the end of your free preview.
Want to read all 10 pages?
- Spring '14
- The Land, Adiabatic process