The original substances in a chemical reaction are called the ______________
Fill in the blank(s) with correct word
reactants
Physics & Space Science
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The thermonuclear process in high mass stars that produces one atom of helium from four of hydrogen is the ________
Fill in the blank(s) with correct word
Physics & Space Science
A superconductor expels any magnetic field from its interior. This is called
a. electromagnetic induction. b. Maxwell's effect. c. magnetic declination. d. the Meissner effect. e. none of the above.
Physics & Space Science
What is the brightest star in the sky other than the Sun?
Physics & Space Science
A refrigerator has a coefficient of performance equal to 4.2. How much work must be done on the refrigerator in order to remove 250 J of heat from the interior?
A) 60 J B) 120 J C) 250 J D) 480 J E) 1050 J
Physics & Space Science