A long, straight, horizontal wire carries current toward the east. A proton moves toward the east alongside and just south of the wire. What is the direction of the magnetic force on the proton?
A) toward the north
B) toward the south
C) upward
D) downward
E) toward the east.
A
Physics & Space Science
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The celestial sphere is a scientific model
a. True b. False Indicate whether the statement is true or false
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If you throw a ball straight downward (in the absence of air resistance), after leaving your hand its acceleration is
A) less than 10 m/s2. B) 10 m/s2. C) greater than 10 m/s2.
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Indicate whether the statement is true or false
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David stands 2.5 meters in front of a plane mirror
(a) How far from David is David's image in the mirror? (b) If David moves away from the mirror at 1.5 m/s, how fast are David and his image moving apart from each other? (c) If David is 180. cm tall, how tall is his image in the mirror?
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