Pluto is different from the Jovian planets in all of the following ways except which one?
A) Its orbit is not very close to being circular.
B) It formed outside of the frost line in the solar nebula.
C) It has a solid surface.
D) It is made mostly of ices.
E) It doesn't have rings.
B
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For an FCC crystal, which of the following x-ray (hkl) diffraction peaks is not present?
(a) (100) (b) (111) (c) (131) (d) (200)
An atom that has lost an electron is called an ion
a. True b. False Indicate whether the statement is true or false
Equilibrium: As shown in the figure, a uniform rectangular crate 0.40 m wide and 1.0 m tall sits on a horizontal surface. The crate weighs 460 N, and its center of gravity is at its geometric center. A horizontal force of magnitude F is applied at a distance h above the floor. Friction at the floor is great enough to prevent the crate from sliding. If h = 0.69 m, what minimum value of F is required to make the crate start to tip over?
Fill in the blank(s) with the appropriate word(s).
As a result of the ejection of planetesimals into the Oort Cloud, simulations indicate that Uranus and Neptune moved:
A) closer to the Sun. B) further from the Sun. C) along their orbits at a different rate. D) from the inner solar system to the outer solar system. E) from the outer solar system to the inner solar system.