A motorcyclist travels around a curved path that has a radius of 350 ft. While traveling around the curved path, the motorcyclist increases speed by 2 ft/s2 . A. If the motorcyclist starts from rest, determine the time needed to reach a total acceleration of 10 ft/s2 . B. Determine the speed of the motorcyclist at the instant with the total acceleration of 10 ft/s2 . C. Determine the magnitude of the total acceleration at the instant when the speed of the motorcyclist is 20 ft/s

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

Astate of matter all that has define volume and can flow is a(n)

15. one purpose of the tread pattern on a tire is to a reduce tire wear. b. reduce traction c. allow water to flow away from the tire. d. look impressive.