As with our own Sun among the neighboring stars, most galaxies in the Local Group are smaller and dimmer than our own Milky Way
Indicate whether the statement is true or false
TRUE
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Uranus and Neptune appear blue or blue-green because
a. their atmospheres absorb blue light very efficiently. b. their solid air-less surfaces are this color c. their surfaces are covered with liquid water with no atmosphere d. traces of methane in their atmospheres absorb red light very efficiently.
The Moon is constantly falling toward Earth
Indicate whether the statement is true or false
For general projectile motion with no air resistance, the vertical component of a projectile's acceleration
A) is always zero. B) remains a non-zero constant. C) continuously increases. D) continuously decreases. E) first decreases and then increases.
If the absolute value of the magnification is larger than one, then the image is
A) larger than the object. B) the same size as the object. C) smaller than the object.