Which of the following is an essential part of Einstein's explanation of gravity?
A) Matter causes curvature of space
B) The gravity of a moving object varies with time
C) Gravitational forces exist only over a limited distance
D) Anti-matter has negative gravity
Correct Answer:
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Q25: The Crab Nebula is powered by
A)Radioactive decay
B)Release
Q26: A pulsar spins rapidly because it
A)Conserved angular
Q27: The size of a black hole is
Q28: If we could see the last few
Q29: Pulsars were first discovered
A)While studying radio scintillations
Q31: The Schwarzschild radius describes the size of
Q32: According to general relativity,what effect does matter
Q33: A rotating neutron star is called a
A)Pulsar
B)White
Q34: A typical pulsar rotates once per
A)Year
B)Day
C)Hour
D)Second
Q35: Electrons moving in a magnetic field produce
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