Which of the following particles are baryons?
A) electrons
B) neutrinos
C) protons
D) quarks
E) photons
Correct Answer:
Verified
Q15: Gravitational lensing occurs when
A)massive objects bend light
Q16: How do we know that there is
Q17: What is the mass-to-light ratio for the
Q18: How are rotation curves of spiral galaxies
Q19: A large mass-to-light ratio for a galaxy
Q21: Based on current evidence concerning the amount
Q22: What do peculiar velocities reveal?
A)the amount of
Q23: Which of the following are candidates for
Q24: What fraction of the mass needed to
Q25: What is the evidence for an accelerating
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