The magnification for a flat mirror:
a. is a function of the image distance.
b. is a function of the object distance.
c. is a function of the object and image distances.
d. is 1.
d
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Seyfert galaxies are spiral galaxies with active cores
a. True b. False Indicate whether the statement is true or false
What is the ecliptic?
A. the extension of Earth's path on the celestial sphere B. the line of the solar and lunar eclipses on the celestial sphere C. the elliptical shape of Earth's orbit around the Sun D. All of these choices are correct.
The Sun's energy comes from ________.
A. its rotation slowing down B. the conversion of mass into energy C. the release of magnetic energy D. meteors and asteroids striking its surface
Venus' surface temperature cools off at night, much like Mercury's does
Indicate whether the statement is true or false