Beneath Earth's lithosphere is a semimolten layer known as the
a. divergent boundary.
b. asthenosphere.
c. batholith.
d. flood basalt.
b
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An eclipsing binary has been analyzed and it has been determined that the ratio of the mass of star A to the mass of star B is 6 and the total mass of the two stars is 26 solar masses. What are the masses of star A and star B?
a. Star A has a mass of 1 solar mass and star B has a mass of 6 solar masses. b. Star A has a mass of 20 solar mass and star B has a mass of 6 solar masses. c. Star A has a mass of 31.2 solar mass and star B has a mass of 5.2 solar masses. d. Star A has a mass of 22.3 solar mass and star B has a mass of 3.7 solar masses. e. The masses of star A and star B cannot be determined from the information given.
A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.If two slide projectors are connected in series across the same 120-volt source, the current drawn from the source is __________
Fill in the blank(s) with correct word
The average value of 
t for a complete cycle is
A. 1. B. 0. C. 0.707. D. 0.500. E. 0.250.
Electrostatic precipitators can effectively remove most of which of the following air pollutants from a smoke stack?
A. Sulfur dioxide B. Nitrous oxides C. Carbon monoxide D. Particulates