When we fission the U-235 nucleus, the total rest-mass of all the resulting fragments of matter
A) is more than the mass of the original nucleus
B) is the same as the mass of the original nucleus.
C) is turned into broccoli.
D) is less than the mass of the original nucleus.
E) None of the above.
D
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Solenoid: An ideal solenoid having 200 turns and carrying a current of 2.0 A is 25 cm long. What is the magnitude of the magnetic field at the center of the solenoid? (?0 = 4? × 10-7 T ? m/A)
Fill in the blank(s) with the appropriate word(s).
A radio telescope 200 m in diameter is used to investigate sources emitting a 21-cm wavelength wave. What is the minimum angular separation of the sources that can be resolved by this system?
A) 0.073° B) 0.030° C) 0.0013° D) 0.154° E) 0.0026°
A 1.0-m wire segment carrying a current of 0.55 A oriented parallel to a uniform magnetic field of 0.80 T experiences a force of what magnitude?
a. 0.44 N b. 0.22 N c. 0.70 N d. 0.35 N e. 0.00 N
The values of n and ? for a 4f subshell are
A) n = 4, ? = 4. B) n = 4, ? = 3. C) n = 3, ? = 3. D) n = 4, ? = 2. E) n = 3, ? = -3.