Which of the following is not normally a component of a fission reactor?

a. Control rods.
b. Moderator to slow down neutrons.
c. Reactor vessel.
d. Light nuclei for fuel.


d. we need heavy nuclei for fuel, not light nuclei.

Physics & Space Science

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A point charge of 3.00 ?C is located on the y-axis at y = 4.0 m, another point charge of 6.0 ?C is located on the x-axis at x = 5.0 m, and a third charge of 7.2 ?C is located at (5.0 m, 4.0 m). What is the magnitude of the force on the 7.2 ?C charge?

A.
B.
C.
D.
E.

Physics & Space Science

The Earth's axis tilt has changed little over its history due to

A) the stabilizing effects of Jupiter's gravity B) the stabilizing effects of the Sun's gravity C) the stabilizing effects of the Moon's gravity D) its rapid rotation

Physics & Space Science

How many different kinds of elements are in a water molecule?

A) one B) two C) three D) four E) none

Physics & Space Science

The energy radiated by a star, such as the Sun, results from

A) beta decay. B) alpha decay. C) fission reactions. D) fusion reactions. E) gravitational collapse.

Physics & Space Science