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.
The Sun is the nearest star to Earth.
Common sites of biofilm infection
Statistics Center (07/2016)
Do you know what that large object in the center of the photo is? In the 1920s, 30s, and 40s, ...
Structures of four common types of DNA-binding motifs from eukaryotic transcription factors