Gravitational waves
A. carry material into black holes.
B. do not carry energy.
C. are traveling distortions of space and time.
D. are how pulsars pulse.
Answer: C
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Suppose that hydrogen, rather than iron, had the lowest mass per nuclear particle. Which of the following would be true?
A) Nuclear fusion could not power stars. B) Stars would be brighter. C) Stars would be less massive. D) All stars would be red giants.
Two equal point charges Q are separated by a distance d. One of the charges is released and moves away from the other due only to the electrical force between them. When the moving charge is a distance 3d from the other charge, what is its kinetic energy?
What will be an ideal response?
The two families of fundamental particles out of which all ordinary matter is made are
A) protons and neutrons. B) leptons and quarks. C) electrons and neutrinos. D) quarks and neutrinos. E) leptons and photons.
That pulsars are losing rotational energy from magnetic drag is shown as they ________
Fill in the blank(s) with correct word