A uniform electric field, with a magnitude of 600 N/C, is directed parallel to the positive x axis. If the potential at x = 4.0 m is 1000 V, what is the change in potential energy of a proton as it moves from x = 4.0 m to x = 1.0 m? (qp = 1.6 × 10^-19 C)
a. 500 J
c. 1.9 × 10^-16 J
b. 2.9 × 10^-16 J
d. 8.0 × 10^-17 J
B
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Which of the following is not an exception to the general patterns in the solar system?
A) the counterclockwise rotation of Venus B) the large size of Earth's Moon C) the rings of Saturn D) the extreme axis tilt of Uranus E) the retrograde rotation of Triton around Neptune
We have seen that two monochromatic light waves can interfere constructively or destructively, depending on their phase difference. One consequence of this phenomena is
A) the colors you see when white light is reflected from a soap bubble. B) a rainbow. C) the appearance of a mirage in the desert. D) the way in which polarized sunglasses work. E) the formation of an image by a converging lens, such as the lens in your eye.
Two protons are released from rest, with only the electrostatic force acting. Which of the following statements must be true about them as they move apart? (There could be more than one correct choice.)
A) Their electric potential energy keeps increasing. B) Their kinetic energy keeps increasing. C) Their kinetic energy keeps decreasing. D) Their electric potential energy keeps decreasing. E) Their acceleration keeps decreasing.
Which of the following statements about lunar phases is true?
A) It is possible to have two full moons during November, but not during December. B) The full moon sometimes rises around midnight. C) The time between new moons is two weeks. D) The time from one new moon to the next new moon is the same as the time from first-quarter moon to third-quarter moon. E) It is possible to have two full moons during January, but not during February.