Which arrow best indicates the position (relative to P) of the greatest concentration of positive charge on the sphere’s surface?

A. A
B. B
C. C
D. D
E. Zero
F. AA
G. BB
H. CC
I. DD


C. C

Physics & Space Science

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Series Resonance: In a RLC circuit, the values of the inductance and capacitance are both halved. As a result of this change, the resonance frequency of the circuit is

A. the same as before. B. reduced to one-half the original value. C. reduced to one-fourth the original value. D. twice the original value. E. four times the original value.

Physics & Space Science

The following diagrams show hypothetical results for collisions between identical balls floating in space. One ball was originally moving to the right along the dashed line before striking the other ball at rest. (The collision was not necessarily head-on.) The arrows depict the balls’ final velocities. Which outcomes are physically believable? For each case, answer “B” if the outcome is believable and “A” if it is absurd.

Physics & Space Science

The carburetor of a car is a pipe with a constriction. Compared to the velocity of flow of a mixture of air and gasoline in the main pipe, the velocity in the constriction will be ________. The pressure in the constriction will be ________ than the pressure in the main pipe.

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

According to the Solar Nebula theory, planets

A) should be a common result of star formation. B) should be randomly oriented to their star's equator. C) will revolve opposite the star's rotation. D) should orbit perpendicular to their star's equator. E) should be extremely rare.

Physics & Space Science