What is the angular magnification of a magnifying glass of focal length 4.0 cm if the image is to be viewed by a relaxed eye (image at the far point) having a near point of 25 cm and a far point at infinity?
A) 2.0 x
B) 3.0 x
C) 3.6 x
D) 4.0 x
E) 6.3 x
E
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Rank these planets in order of the strength of the greenhouse effect on the planet, from the weakest to the strongest greenhouse effect.
A) Mars, Mercury, Earth, Venus B) Mercury, Venus, Earth, Mars C) Mercury, Earth, Mars, Venus D) Mercury, Mars, Earth, Venus E) Mars, Earth, Venus, Mercury
The star nearest the North Celestial Pole is ________.
A. Thuban B. Vega C. Denebola D. Polaris E. Mizar
Based solely on its distance from the Sun, we would expect the surface of Venus to be
A) colder than the Earth such that water would freeze B) warmer than the Earth, but not so warm that liquid water could not exist C) roughly the same temperature as the Earth so that water would mostly be in liquid form D) very much warmer than the Earth such that liquid water could not exist on the surface
Action and reaction forces are parts of
A) a single interaction. B) a pair of interactions. C) multiple interactions.