Any celestial body caught in a 3:2 resonance with Neptune is classified as a(n) ____
a. neptunite
b. plutino
c. Plutonian satellite
d. asteroid
e. Kuiper belt objects
b
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Two children are riding on a merry-go-round. Child A is at a greater distance from the axis of rotation than child B. Which child has the larger tangential speed?
A) Child A B) Child B C) They have the same zero tangential speed. D) They have the same non-zero tangential speed. E) There is not enough information given to answer the question.
A small car pushes on a disabled truck, accelerating it slowly forward. Each exerts a force on the other as a result of their contact interaction. Which vehicle exerts the greater force on the other?
A. The car B. The truck C. Both forces have the same magnitude. D. The truck doesn’t exert any force on the car. E. One needs more information to answer.
Compared to the average size of a hydrogen atom, the average size of a helium atom is
A) larger. B) smaller. C) about the same.
Charge of uniform density (0.30 nC/m2) is distributed over the xy plane, and charge of uniform density (?0.40 nC/m2) is distributed over the yz plane. What is the magnitude of the resulting electric field at any point not in either of the two charged planes?
a. 40 N/C b. 34 N/C c. 28 N/C d. 46 N/C e. 6.0 N/C