Twelve seconds after starting from rest, a freely-falling cantelope has a speed of
A) 10 m/s.
B) 50 m/s.
C) 100 m/s.
D) more than 100 m/s.
Answer: D
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The Moon contains small amounts of frozen water that is mixed in with its rocks.
Answer the following statement true (T) or false (F)
A bar magnet that holds a chain of nails illustrates
A) magnetic field displacement. B) magnetic induction. C) electromagnetic induction.
The number of daylight hours at 35°N is greatest during the month of
a. May. b. August. c. June. d. July.
A bar magnet is dropped from above and falls through the loop of wire shown below. The north pole of the bar magnet points downward towards the page as it falls. Which statement is correct?
a.
The current in the loop always flows in a clockwise direction.
b.
The current in the loop always flows in a counterclockwise direction.
c.
The current in the loop flows first in a clockwise, then in a counterclockwise direction.
d.
The current in the loop flows first in a counterclockwise, then in a clockwise direction.
e.
No current flows in the loop because both ends of the magnet move through the loop.