Suppose you released a single proton from rest at some point X in an electric field, and that you then released a single electron from rest at the same point X
How would the motions of the proton and electron compare, just after their release from rest?
A) They would move in opposite directions, and the proton would move fastest.
B) They would move in the same directions, and the electron would move fastest.
C) They would move in the same directions, and the proton would move fastest.
D) They would move in opposite directions, and the electron would move fastest.
E) They would move in opposite directions, and at the same speeds.
D
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A superconducting wire's chief characteristic is which of the following?
a. an extremely great length b. a large cross sectional area c. an extremely high temperature d. no resistance
A car moving at a constant speed travels past a valley in the road, as shown below. Which of the arrows shown most closely approximates the direction of the car’s acceleration at the instant it is at the position shown? (Hint: Draw a motion diagram.)
A. A
B. B
C. C
D. D
E. E
F. F
T. T
As the radius of the orbit of an artificial satellite increases, its orbital period __________
Fill in the blank(s) with correct word
The change in fossils at the K-T sediment layer suggests that in addition to the dinosaurs, _________ also went extinct.
Fill in the blank(s) with the appropriate word(s)