A positive charge and a negative charge held a certain distance apart are released. As they move, the force on each particle

A) increases.
B) decreases.
C) stays the same.


Answer: A

Physics & Space Science

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A generator has 200 turns of wire on a coil of radius 2.00 cm. What rotational speed is necessary to produce an emf of amplitude 4.50 V if the magnetic field in the region of the coil is 0.180 T?

A. 60.0 rad/s B. 16.0 rpm C. 100 rpm D. 500 rpm E. 950 rpm

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Photoelectric Effect: Light of a given wavelength is used to illuminate the surface of a metal, however, no photoelectrons are emitted. In order to cause electrons to be ejected from the surface of this metal you should

A. use light of a longer wavelength. B. use light of a shorter wavelength. C. use light of the same wavelength but increase its intensity. D. use light of the same wavelength but decrease its intensity.

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What forms in nucleosynthesis?

A.) Most of the Helium-4 in the Universe. B.) Most of the Hydrogen-1 in the Universe. C.) Stars. D.) The cosmic microwave background radiation. E.) Quarks

Physics & Space Science

Describe how the motion of Uranus led to the discovery of Neptune

What will be an ideal response?

Physics & Space Science