The process of obtaining energy by merging small nuclei is called

a. fission.
b. fusion.
c. nucleogenesis.
d. bombardment.

b

Physics & Space Science

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Transformers: The primary of an ideal transformer has 100 turns and its secondary has 200 turns. Neglecting frictional losses, if the power input to the primary is 100 W, we can expect the power output of the secondary to be

A. 50 W. B. 100 W. C. 200 W. D. none of the given answers.

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Physics & Space Science

The central, completely dark portion of a shadow is call the ______________

Fill in the blank(s) with correct word

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Physics & Space Science

The low-pressure center of a hurricane is called the ______________

Fill in the blank(s) with correct word

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Physics & Space Science

Why is the Schrödinger equation so much simpler to solve for electrons in atoms like H and He+ than for Na or even B+?

a.The strong force and Coulomb forces are nearly in balance for the smaller atoms. b.The electrons in larger atoms affect each other by Coulomb repulsion.

c. Nuclear charge is distributed in significantly larger volume in larger atoms and therefore the Coulomb force is diminished on the electrons. d.Gravity affects each electron of larger atoms more, making the approximation of only Coulomb potential grossly inaccurate. e. More principal quantum numbers are allowed for all electrons in the larger atoms.

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Physics & Space Science