A helium nucleus is accelerated from rest through a potential difference V to a kinetic energy of 3.2 
What is V?
A. 1.0 MV
B. 2.0 MV
C. 1.6 MV
D. 3.2 MV
E. 0.51 MV
A. 1.0 MV
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Consider a string with several rocks tied along its length at equally spaced intervals. You whirl the string overhead so that the rocks follow circular paths. Compared with a rock at the end of the string, a rock at the middle moves
A) half as fast. B) twice as fast. C) at the same linear speed.
The Large Hadron Collider is expected to produce protons with kinetic energy 7 TeV. What is the speed of these protons?
A) less than 0.9000 c B) 0.9500 c C) 0.9990 c D) greater than 0.9999 c E) 0.9000 c
A current of 5 A is flowing in a 20 mH inductor. The energy stored in the magnetic field of this inductor is
A) 1 J. B) 0.25 J. C) 0.50 J. D) 0. E) dependent upon the resistance of the inductor.
How does the modern value of Hubble's constant compare to Hubble's original published value?
A) They are very similar. B) The modern value is about 7 times lower than the original value. C) The modern value is about 7 times higher than the original value. D) The modern value is about 700 times lower than the original value. E) The modern value is about 700 times higher than the original value.