A photon is quantum of electromagnetic radiation
a. True
b. False
Indicate whether the statement is true or false
True
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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.
What happens when the gravity of a massive star is able to overcome neutron degeneracy pressure?
A) Gravity is not able to overcome neutron degeneracy pressure. B) The core contracts and becomes a black hole. C) The core contracts and becomes a white dwarf. D) The star explodes violently, leaving nothing behind. E) The core contracts and becomes a ball of neutrons.
Nuclear stability is related to the balance between
A) attracting and repelling forces in the nucleus. B) positive and negative ionic forces. C) both of these D) neither of these
Some Seyfert nuclei emit more energy than the energy emitted by the entire Milky Way Galaxy
Indicate whether the statement is true or false