The Higgs field, if it is discovered, will explain the origin of

A) gravity.
B) the big bang.
C) rest mass.
D) electric charge.
E) photons.

C

Physics & Space Science

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By the early part of the 20th century, theoretical physics had changed dramatically because of so many new results. The work of Franck and Hertz showed that the atomic levels were quantized. Why did that work specifically make so much of an impact at that time?

A. More and more scientists rejected their findings and reaffirmed the triumphs of classical physics. B. Their work moved science to the discovery of hydrogen as an element. C. It affirmed that quantum physics triumphed over classical physics in key cases. D. They showed that when using large length scales, quantum effects dominate. E. All of the above.

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Physics & Space Science

LR Circuits: A resistor and an inductor are connected in series to an ideal battery of constant terminal voltage. At the moment contact is made with the battery, the voltage across the resistor is

A. greater than the battery's terminal voltage. B. equal to the battery's terminal voltage. C. less than the battery's terminal voltage, but not zero. D. zero. E. equal to the voltage across the inductor.

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Physics & Space Science

What is the approximate density of the Earth?

A. 1 g/cm3 B. 5 g/cm3 C. 25 g/cm3 D. 50 g/cm3

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Physics & Space Science

Halo stars are all Population II objects

Indicate whether the statement is true or false

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Physics & Space Science