If the top quark has a mass of 175 GeV/c2 , what is its mass in atomic mass units?
A. 175 u
B. 188 u
C. 163 u
D. 58 u
E. 19 u
B. 188 u
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A 10.0 kg object is hanging by a massless rope in an elevator that is traveling upward. The tension in the rope is measured to be 75.0 N. What are the magnitude and direction of the acceleration of the elevator?
What will be an ideal response?
A solenoid consists of 100 circular turns of copper wire. Parts of three turns, A, B and C, are shown below.
When a current flows through the coil,
A. both A and C are repelled by B. B. A is attracted to B; C is repelled by B. C. neither A nor C is attracted to or repelled by B. D. A is repelled by B; C is attracted to B. E. both A and C are attracted to B.
In the Compton effect, as the scattering angle increases, the frequency of the X-rays scattered at that angle
A) increases. B) decreases. C) does not change. D) varies randomly.
A beam of "unpolarized" light
A. has a polarization direction that is constantly rotating. B. does not have any polarized waves. C. contains a single light wave with a fixed polarization direction. D. can be polarized by reflecting it from a flat surface.