The electric potential of a charge distribution is given by V(x, y) = 2xy - x2 - y. At which point is the electric field equal to zero?
A)
x = 0.5, y = 1
B)
x = 1, y = 1
C)
x = 1, y = 0.5
D)
x = 0.5, y = 0.5
E)
x =0, y = 0
D
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Consider an experiment where we send monochromatic light to a distant screen through a single narrow slit. The distance between adjacent dark fringes in the diffraction pattern displayed on the screen (A) increases, (B) decreases, or (C) remains the same if, The intensity of the light increases
A. Increases B. Decreases C. Remains the same
The process of making an electron less tightly bound to an atom's nucleus is known as
a. excitation. b. Doppler broadening. c. collisional broadening. d. a red shift. e. quantum mechanics.
In what part of spiral galaxies do new stars form?
A) In the bulge. B) In the spiral arms. C) No new stars are forming anywhere. D) In the halo. E) No new stars form inside spirals. They form outside the galaxy and are pulled in.
In organic molecules, a chlorine atom will normally form how many bonds?
a. 2 b. 3 c. 4 d. 1 e. 0