Gaps in the asteroid belt occur at distances where
A) the density of asteroids was once so high that collisions pulverized the asteroids into dust.
B) the period of an orbiting asteroid would be a simple fraction (like 1/3 or 1/4) of Jupiter's orbital period.
C) the period of an orbiting asteroid would be the same as Jupiter's orbital period.
D) the period of an orbiting asteroid would be the same as Mars's orbital period.
E) the orbit would take the asteroid beyond the "frost line" in the solar system.
B) the period of an orbiting asteroid would be a simple fraction (like 1/3 or 1/4) of Jupiter's orbital period.
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When dark matter is added, what happens to the speeds of the inner and outer stars?
A.) All the speeds increased the same. B.) The stars near the center slowed down, but the outer ones were accelerated. C.) All the stars sped up, but the outer ones gained the most speed. D.) All were slowed down by the tidal drag of the dark matter. E.) There was no change.
A long straight metal rod has a radius of 2.0 mm and a surface charge of density 0.40 nC/m2 . Determine the magnitude of the electric field 3.0 mm from the axis
a. 18 N/C b. 23 N/C c. 30 N/C d. 15 N/C e. 60 N/C
Why is Pluto NOT considered a Jovian planet?
A. Its atmosphere is rich in oxygen, making it more like Earth. B. Its mass and radius are very small, and it lacks the thick atmosphere of hydrogen seen on the other Jovian planets. C. It is so far out in the Solar System. D. Its interior is mostly rock and iron. E. It is not really orbiting the Sun but is simply drifting through the outer edge of the Solar System.
Exclusion Principle: How many values of the magnetic quantum number, m?, are possible if the orbital angular momentum quantum number is ? = 2?
A. 1 B. 2 C. 3 D. 4 E. 5