Examlex
Determine the mass of a theorized black hole from the following information. The mass of the companion main sequence star is 6 solar masses. The observed period and semi-major axis of the binary system are 3.5 years and 5.5 AUs, respectively.
Q10: Briefly describe the characteristics of an elliptical
Q27: Why do astronomers conclude that the spiral
Q29: The _ effect changes the observed wavelength
Q32: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8862/.jpg" alt=" In the accompanying
Q34: Built in 1963, the _ telescope in
Q36: The center of the Milky Way galaxy
Q39: It is possible for a medium-mass star
Q42: Stars at different distances from the galactic
Q42: Light-gathering power is proportional to the _
Q57: Gas falling into a black hole:<br>A) is