In a spectroscopic binary, the star whose lines shift the most weighs the most
Indicate whether the statement is true or false
FALSE
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Processed meteorites with high metal content probably are
A) leftover chunks of rock from the earliest period in the formation of the solar system. B) pieces of comets rather than of asteroids. C) chunks of rock chipped off the planet Mars. D) chunks of rock chipped off the planet Mercury. E) chunks of the core of a larger asteroid that was shattered by a collision.
A quasar's spectrum is hugely redshifted. What does this large redshift tells us about the quasar?
A) the composition of the quasar B) the size of the quasar's central, supermassive black hole C) the distance to the quasar D) the type of host galaxy in which the quasar resides
The focal lengths of the objective and the eyepiece in a microscope are 0.29 cm and 2.50 cm, respectively
An object is placed at 0.30 cm from the objective lens and the image of this object is viewed with the eyepiece adjusted for minimum eyestrain (with the eye focused at the far point). The near point of the person using the microscope is 25 cm and the far point is at infinity. What is the final overall magnification of the microscope? A) -470 x B) -190 x C) -240 x D) -320 x E) -300 x
What capacitance will have the same reactance as a 100-mH inductance of both of them are in a 120-V 60-Hz circuit?
What will be an ideal response?