The electric field associated with a uniformly charged hollow metallic sphere is the greatest at:
a. the center of the sphere.
b. the sphere's inner surface.
c. infinity.
d. the sphere's outer surface.
d
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Why were scientists surprised to find evidence of subsurface liquid water on Enceladus?
A) Enceladus was thought to be too far from the Sun to have a subsurface zone of liquid water. B) Enceladus was thought to be too small to have a subsurface zone of liquid water. C) Enceladus was not expected to have any water or ice in its composition. D) Scientists expect that Enceladus would have lost its liquid water to solar wind stripping by now.
The equilibrium rule applies to
A) vector quantities. B) quantities that are equal in magnitude. C) scalar quantities. D) any kind of quantities.
If the speed of a bicycle is reduced to half before skidding to a stop, it will skid
A) one-eighth as far. B) one-fourth as far. C) one-half as far. D) none of the above
The heaviest element produced by stars or in supernovae is silicon
Indicate whether the statement is true or false