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.
A pair of pygmy hippos at the Mount Kenya Wildlife Conservancy
The plesiadapiforms may have been primates, but they lacked certain features, such as a postorbital
A normally worn spark plug that has a tapered platinum-tipped center electrode.
Common Prefixes Cont.
Common Causes of Walking Gait Deviations
The mitochondrion is the center of energy transformation in the cell