A small metal sphere is suspended from the conducting cover of a conducting metal ice bucket by a non-conducting thread. The sphere is given a negative charge before the cover is placed on the bucket. The bucket is tilted by means of a non-conducting material so that the charged sphere touches the inside of the bucket. Which statement is correct?
a. The negative charge remains on the metal sphere. b. The negative charge spreads over the outside surface of the bucket and cover.
c. The negative charge spreads over the inside surface of the bucket and cover.
d. The negative charge spreads equally over the inside and outside surfaces of the bucket and cover.
e. The negative charge spreads equally over the sphere and the inside and outside surfaces of the bucket and cover.
B
You might also like to view...
In this diagram a force acting on a block is shown by the arrow labeled F. The mass of the block is known, as is the size of the force, but the observed acceleration is larger than F/m and so another force must act on the block. In which direction (A, B, C, or D) is this force?
A. A B. B C. C D. D
Which properties of spiral galaxies allow us to subclassify them as Sa, Sb, or Sc?
A) orientation B) size of the disk C) shape of the halo D) size of bulge and extent of spiral arms E) color of stars in the disk
If there were no greenhouse effect, Earth's average temperature would likely be
A) near absolute zero. B) a frigid -18°C. C) comfortably cooler. D) warmer than now.
All of the following statements are true. Which one explains the reason why there is not a solar eclipse at every new moon?
A) The nodes of the Moon's orbit precess with an approximately 18-year period. B) The orbital plane of the Moon is tilted by about 5° to the ecliptic plane. C) The Moon rotates synchronously with its orbit around Earth. D) The Moon's orbital period is slightly shorter than the time it takes for a cycle of phases. E) The Moon's orbital distance varies as it orbits around Earth.