What defines a calorie?
a. The amount of heat that raises the temperature of one ounce of water by one degree Fahrenheit.
b. The work done by the weight of one kilogram of water moving downward through a distance of one meter.
c. The amount of heat that raises the temperature of one gram of water by one degree Celsius.
d. The amount of work that raises the temperature of one gram of water by one degree Celsius.
e. The amount of work that raises the temperature of one ounce of water by one degree Fahrenheit.
c
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Which of the following are active galaxies?
A. quasars B. radio galaxies C. Seyfert galaxies D. All of these choices are correct.
The pair of water-filled caissons of the Falkirk Wheel have equal weights whenever
A) they carry equal-weight floating boats. B) one carries a heavy floating boat and the other only water. C) they carry unequal weights of floating boats. D) all of the above E) none of the above
In a double-slit experiment, the slit separation is 2.0 mm, and two wavelengths, 750. nm and 900. nm, illuminate the slits. A screen is placed 2.0 m from the slits
At what distance from the central maximum on the screen will a bright fringe from one pattern first coincide with a bright fringe from the other?
What is the magnetic energy density in a volume where the magnetic field is 4.0 mT?
a. 
b. 
c. 
d. 
e. 