Problem
A. Neutron stars were predicted before there was any observational evidence. When were they predicted, and by whom?
B. There are several tests that confirm Einstein's basic theory of general relativity. Describe any two of them.
C. What is "equivalent" in general relativity in its so-called "equivalence principle."
D. Special relativity predicts changes in what we observe for length, mass, and time when something is seen in relative motion. Which way does time change?
E. Where do the x-rays from Cygnus X-1 originate?
F. What is the radius of the event horizon of a 10-solar-mass black hole?
G. Why do white dwarf stars not collapse further if left on their own?
H. What is the maximum mass of a white dwarf?
I. A massive star supernova was seen in 1987 - describe it briefly.
J. What instrument discovered the first pulsar?
K. The endpoint of nuclear energy production in a star comes when the core has become mostly what element?
L. Why do we think the pulses from a pulsar come from a small region?