Which of the following describes erosion?
A) the excavation of bowl-shaped depressions by asteroids or comets striking a planet's surface
B) the eruption of molten rock from a planet's interior to its surface
C) the disruption of a planet's surface by internal stresses
D) the wearing down or building up of geological features by wind, water, ice, and other phenomena of planetary weather
D
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________ form when galaxies collide and ________.
A. Quasars; emit large amounts of heat and radio waves B. Starburst galaxies; star formation is triggered, making them very bright C. S0 galaxies; all their stars are destroyed D. Starburst galaxies; all their stars are destroyed
A soap bubble has an index of refraction of 1.33. What minimum thickness of this bubble will ensure maximum reflectance of normally incident 530. nm wavelength light?
What will be an ideal response?
The major influence on the tides is due to __________
Fill in the blank(s) with correct word
A particle has a total energy that is less than that of a potential barrier. When the particle penetrates the barrier, its wave function is
a. a positive constant. b. exponentially increasing. c. oscillatory. d. exponentially decreasing. e. none of the above.