Which of the following particles is most similar to an electron?
A) photon B) muon C) quark D) proton E) neutrino
B
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A spectrograph spreads out light according to ____ to form a spectrum
a. wavelength b. frequency c. interference d. aberration e. grating
A person throws a ball horizontally from the top of a building that is 24.0 m above the ground level. The ball lands 100 m down range from the base of the building. What was the initial velocity of the ball? Neglect air and use g = 9.81 m/s2
A) 202 m/s B) 9.80 m/s C) 19.6 m/s D) 45.2 m/s E) 94.4°
After a stone that is thrown straight up reaches the top of its path and then falls downward, its acceleration is
A) greater than at the top of its path. B) less than at the top of its path. C) the same as at the top of its path.
According to Einstein, as the wavelength of the incident monochromatic light beam becomes shorter, the work function of a target material in a phototube:
a. increases. b. decreases. c. remains constant. d. is directly proportional to wavelength.