The actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the pool from above. How deep (in cm) will it appear to be? (nwater = 1.33.)
a. 133
b. 75.2
c. 90.6
d. 117
e. 100
b
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This bar graph is based on statistical study of results from the Kepler mission. Which of the following conclusions is supported by the graph?
A) At least about 15% of stars have a planet similar in size to Earth. B) Most stars with an Earth-sized planet do not have any larger jovian planets orbiting far from their stars. C) Most stars have five planets. D) A star orbited by a super-Earth is likely also to be orbited by a mini-Neptune.
A Michelson interferometer is used with 600 nm light. How far does the adjustable mirror move as the fringe pattern goes from a bright fringe to the next bright fringe?
1.1200 nm 2.600 nm 3.300 nm 4.150 nm
Projectile Motion: For general projectile motion with no air resistance, the horizontal component of a projectile's velocity
A. remains zero. B. remains a non-zero constant. C. continuously increases. D. continuously decreases. E. first decreases and then increases.
A key step in the destruction of ozone by chlorofluorocarbons is
A) the chlorofluorocarbon molecule separates, resulting in free carbon which produces a greenhouse effect. B) the chlorofluorocarbon molecule directly combines with atmospheric ozone. C) carbon atoms react with ozone. D) radiation from the sun separates chlorofluorocarbon, resulting in free chlorine. E) radiation from the sun breaks down O3 molecules.