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
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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.
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
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
Describe how the motion of Uranus led to the discovery of Neptune
What will be an ideal response?