The Sun's blackbody curve peaks in the ________ portion of the spectrum
A) radio B) visible C) ultraviolet D) X-ray E) infrared
B
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Our Milky Way Galaxy is now known to be quite similar to the nearby Andromeda Galaxy, M-31
Indicate whether the statement is true or false
Large molecules found in meteorites and interstellar clouds are evidence that
A) life is abundant in the galaxy. B) life has definitely formed in other places than Earth. C) organic molecules are extremely rare. D) chemical evolution has taken place elsewhere in the universe. E) life originated on Mars before Earth.
Light of wavelength 687 nm is incident on a single slit 0.75 mm wide
At what distance from the slit should a screen be placed if the second dark fringe in the diffraction pattern is to be 1.7 mm from the center of the diffraction pattern? A) 0.39 m B) 1.9 m C) 1.1 m D) 0.93 m E) 0.47 m
When a superconductor's temperature drops below the critical temperature, its resistance:
a. equals that of a semiconductor of equal dimensions. b. drops to zero. c. reduces to one half. d. increases by two.