Which of the following statements is true about fission reactions?

a. The fission products themselves are often unstable.
b. Spontaneous fission occurs when low energy neutrons collide with an unstable nucleus.
c. The nuclear strong force is most fundamentally responsible for forcing apart the nucleus during fission.
d. Fission reactions are just as efficient at producing energy as fusion reactions.
e. Binding energy per nucleon is greater for nuclei with Z >200 than for smaller nuclei, so heavier elements are less efficient in producing energy through fission reactions.

a.
The products of fission often are very neutron rich, which puts them off the line of stability. This arises from the fissioning nuclide as being inherently unstable in the first place.

Physics & Space Science

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Determine the charge stored by C1 when C1 = 20 ?F, C2 = 10 ?F, C3 = 30 ?F, and V0 = 18 V



a.
0.37 mC

b.
0.24 mC

c.
0.32 mC

d.
0.40 mC

e.
0.50 mC

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A proton, moving west, enters a magnetic field of a certain strength. Because of this magnetic field the proton curves upward. What is the direction of this magnetic field?

A) towards the west B) towards the east C) towards the south D) towards the north E) downward

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A natural gas pipeline with a diameter 0.250 m delivers 1.55 cubic meters of gas per second. What is the flow speed of the gas in the pipeline?

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The Earth's lithosphere

A) is the same as the crust. B) consists of the crust and the asthenosphere. C) is the same as the mantle. D) consists of the crust and the uppermost part of the mantle.

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