Describe one advantage and one disadvantage of having the water level "sweep" (move) through the resonance position. 5. a tuning fork has a frequency of 384 hz. the speed of sound is 343 m/s. the maximum length of an air column is 80 cm. how many resonances can be observed? lab journal template experiment a: wavelength - determine resonance locations. rvoir ermo- neter a tuning fork is held over the open end of a long tube. the tube is partly filled with water and the tube is connected to a reservoir that is used to change the height of the water in the tube. when the reservoir is high, the water in the reservoir drains into the tube, raising the water level. when the reservoir is low, water drains out of the tube into the reservoir, lowering the water level. the flow of water is not instantaneous, so it is possible to sweep through a range of water levels in a controlled way over the course of a few seconds.

The lights used by mark watley (played by matt damon) during the film the martian seem to be metal halide lamps. metal halide lamps are filled with vaporized mercury and metal-halogen compounds. when an electric current is passed through the lamp, the tube begins to glow a bright white/blue color. if you were to pass this light through a prism to separate the individual light frequencies, you would see a rainbow just as you would if using natural sunlight because of the complexity of the metal halide gas and the vast amount of possible electron transitions. (the study of light in this way is known as spectroscopy and allows astronomers to know exactly what atoms compose distant stars, simply by looking at the light they emit. the spectral lines an atom produces uniquely identifies that atom just like a fingerprint uniquely identifies a person. the momentum equation and energy equation that we have used above can be combined to give the following equation: c = e p where again p is the phonon momentum, e is the photon energy and c is the speed of light. when you divide the photon energy found in #6 by the photon momentum found in #4, do you get the speed of light? (if not, check your work for questions #4 through #6). yes no

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance

If a stone with an original velocity of 0 is falling from a ledgeand takes 8 seconds to hoybthe ground whays the final velocity of the stone