If a = 60 cm, b = 80 cm, Q = ?4.0 nC, and q = 1.5 nC, what is the magnitude of the electric field at point P?
a.
68 N/C
b.
72 N/C
c.
77 N/C
d.
82 N/C
e.
120 N/C
a
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Equation of Traveling Waves: Four waves are described by the following equations, where distances are measured in meters and times in seconds.I. y = 0.12 cos(3x - 21t)II. y = 0.15 sin(6x + 42t)III. y = 0.13 cos(6x + 21t)IV. y = -0.23 sin(3x - 42t)Which of these waves have the same period?
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The impulse experienced by a body is equivalent to its change in:
a. velocity. b. kinetic energy. c. momentum. d. None of the above choices are valid.
In a certain particle accelerator, a proton has a kinetic energy that is equal to its rest energy. What is the speed of the proton relative to the accelerator?
A) 0.25c B) 0.50c C) 0.71c D) 0.75c E) 0.87c
What is the principal difference between a hydrogen bomb and a uranium bomb?
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