Pluto's density is most similar to
A) the terrestrial planets.
B) the jovian planets.
C) moons of the jovian planets.
D) Mercury, but nor Venus, Earth, or Mars.
E) Saturn, but not Jupiter, Uranus, or Neptune.
C
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If the net work W is done on an object is negative, the object's kinetic energy increases by an amount W
Indicate whether the statement is true or false
If you want to cross a river in a motorboat in the least amount of time (least time in water), you should head
A) straight across the river. B) slightly upstream. C) slightly downstream. D) the time will be independent of how you head your boat E) directly downstream.
A current-carrying wire in a magnetic field
A) may be deflected. B) may experience a force. C) both of these D) neither of these
The xy plane is "painted" with a uniform surface charge density which is equal to 40 nC/m2. Consider a spherical surface with a 4.0-cm radius that has a point in the xy plane as its center. What is the electric flux through that part of the spherical surface for which z> 0?
A. 14 N ? m2/C B. 11 N ? m2/C C. 17 N ? m2/C D. 20 N ? m2/C E. 23 N ? m2/C