Sirius A and Sirius B constitute a binary star pair in which the stars orbit their common center of mass with a period of 49.9 years. The stars are 2.40 1012 m apart.
Assume that the two stars have equal masses and that they move in a circle about their common center of mass. What is the mass of each star? G = 6.67 x 10-11 Nm2/kg2. A) 5.41 1030 kg
B) 2.70 1030 kg
C) 7.55 1030 kg
D) 3.30 1030 kg
E) 1.65 1030 kg
Question 2
Two coherent light sources are characterized by
A) having the same amplitude.
B) having the same frequency.
C) having the same wavelength.
D) having the same velocity.
E) having the same frequency and maintaining a constant phase difference.
Sirius A and B Hubble photo
Surface magnetic field of SU Aur (a young star of T Tauri type), reconstructed by means of Zeeman-Do
Common Homophones
Common Causes of Walking Gait Deviations
This ciliated protozoan is a Stentor. Stentor are common in freshwater lakes and rivers