The Milky Way galaxy has collided with several other large galaxies in its lifetime
a. True
b. False
Indicate whether the statement is true or false
False
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Which galaxy do you come from?
A: The Andromeda Galaxy. B: The Milky Way Galaxy. C: The Virgo Galaxy. D: The Antenna Galaxy. E: The Whirlpool Galaxy.
Harlow Shapley concluded that the Sun was not in the center of the Milky Way Galaxy by
A) looking at the shape of the "milky band" across the sky. B) mapping the distribution of stars in the galaxy. C) mapping the distribution of globular clusters in the galaxy. D) mapping the distribution of gas clouds in the spiral arms. E) looking at other nearby spiral galaxies.
The curved surface of a 50. cm focal length "plano-convex" lens has a radius of curvature of 30. cm. What is the refractive index of the glass?
What will be an ideal response?
The rotational inertia of a pencil is greatest about an axis
A) along its length, where the lead is. B) about its midpoint, like a propeller. C) about its end, like a pendulum.