A charge (uniform linear density = 9.0 nC/m) is distributed along the x axis from x = 0 to x = 3.0 m. Determine the magnitude of the electric field at a point on the x axis with x = 4.0 m
a. 81 N/C
b. 74 N/C
c. 61 N/C
d. 88 N/C
e. 20 N/C
c
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A) half as many protons as neutrons. B) the same number of neutrons and protons. C) more neutrons than protons. D) no clear trend in the relative number of neutrons and protons. E) more protons than neutrons.
A mass m is attached to a vertical spring with a force constant k, it oscillates with a period T. If the spring is cut to one third of its original length and the same mass is attached to it, the new period of oscillation will be
A) less than T. B) greater than T. C) equal to T. D) It could be greater or less than T, depending on how you cut the spring.
Life and human life are the same thing
a. True b. False Indicate whether the statement is true or false
The Tully-Fisher relation exists between the galaxy's luminosity and its:
A) color. B) age. C) rotation. D) mass. E) size.