How is the Mars Rover mission different from the Global Surveyor mapping mission?
What will be an ideal response?
The Mars Rover mission landed two probes, Spirit and Opportunity, on the surface. They traveled over the surface collecting and analyzing samples. Global Surveyor was an orbiting spacecraft.
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What happens during the apparent retrograde motion of a planet?
A) The planet appears to move eastward with respect to the stars over a period of many nights. B) The planet moves through constellations that are not part of the zodiac. C) The planet rises in the west and sets in the east. D) The planet moves backward in its orbit around the Sun. E) The planet moves backward through the sky.
If a spherical convex mirror has a radius of curvature R, the magnitude of its focal length is
A) R/2. B) R/4. C) R. D) 2R. E) 4R.
Two harmonic waves traveling in opposite directions interfere to produce a standing wave described by y = 2sin(4x)cos(3t), where x is in m and t is in s. What is the speed (in m/s) of the interfering waves?
a. 0.75 b. 0.25 c. 1.3 d. 12 e. 3.0
When you look at a single slit diffraction pattern produced on a screen by light of a single wavelength, you see a bright central maximum and a number of maxima on either side, their intensity decreasing with distance from the central maximum. If the width of the slit is increased,
a. the pattern shrinks in size. (central maximum less wide; other maxima in closer to it) b. the pattern increases in size. (central maximum wider; other maxima farther from it) c. it does not affect the size of the pattern. d. the width of the central maximum increases, but the other maxima do not change in position or width. e. the width of the central maximum decreases, but the other maxima do not change in position or width.