In the context of the Jovian rings, moons:
A) spread the rings outward.
B) supply the rings with particles.
C) loosen, unbind, and release the rings.
D) prevent the alteration of the shapes of the rings.
B
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Of the four known fundamental forces, the one that holds electrons into their orbits in atoms is
A) the strong nuclear force. B) gravitational. C) centrifugal. D) electromagnetic. E) Nonsense--these electrons have no forces acting on them.
A 2.0-kg object moving 3.0 m/s strikes a 1.0-kg object initially at rest. Immediately after the collision, the 2.0-kg object has a velocity of 1.5 m/s directed 30° from its initial direction of motion. What is the y component of the velocity of the 1.0-kg object just after the collision?
a. ?3.7 m/s b. ?3.4 m/s c. ?1.5 m/s d. ?2.4 m/s e. ?4.1 m/s
The purpose of a(n) ______ page is to provide detailed content and interest.
A. subsidiary B. home C. landing D. splash
The symbol indicating the mass number of a nucleus is A
a. True b. False Indicate whether the statement is true or false