A high tide is occurring at Charleston, South Carolina (80°W, 33°N). At approximately what other longitude is a high tide occurring?
a. 100°E
b. 80°E
c. 60°E
d. 40°E
e. 20°E
a
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Which of the following is evidence of past internal activity on Mercury?
A. Vents B. "the Spider" C. "Hollows" D. Scarps E. All of these choices are correct
Which statement about Saturn's rings is not true?
A) The large gap known as the Cassini Division is shaped by an orbital resonance with the moon Mimas, which orbits well outside the rings. B) Some features of the rings are shaped by small moons that actually orbit within the ring system. C) The rings must look much the same today as they did shortly after Saturn formed. D) The rings are so thin that they essentially disappear from view when seen edge-on.
A projectile is fired from ground level on a horizontal plain. If the initial speed of the projectile is now doubled, and we neglect air resistance,
A) its range will be increased by . B) its range will double. C) its range will be decreased by a factor of two. D) its range will quadruple. E) its range will decrease by a factor of four.
If you were looking at a weather map with isobars drawn on it, what would you look for to find the area where the horizontal pressure gradient is the strongest?
a. An area where isobars are close together. b. An area where there are not isobars. c. An area where isobars are far apart. d. None of the above.