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.


Answer: B

Physics & Space Science

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A) 25 k? B) 27 k? C) 29 k? D) 31 k? E) 35 k?

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For simplicity, a professor uses 9.8 (meters per second) per second for the acceleration due to gravity instead of the more precise 9.81 (meters per second) per second. If Cavendish had made the same approximation, his estimate for Earth's mass have been

A. too high B. too low

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Which kind of vaporization can occur at any temperature between the freezing and boiling points of a substance?

What will be an ideal response?

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