Radio galaxies are generally bright at only radio wavelengths
Indicate whether the statement is true or false
False
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The total kinetic energy in one mole of an ideal gas is 4,000 J. What is the average kinetic energy of an individual particle in the ideal gas?
a. 
b. 
c. 
d. 
e. 
You obtain a 100. W lightbulb and a 50. W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. Which statement is correct?
A) Both bulbs glow at the same increased brightness. B) The 100-W bulb glows brighter than the 50-W bulb. C) Both bulbs glow at the same reduced brightness. D) The 50-W bulb glows more brightly than the 100-W bulb.
If you double the thickness of a wall built from a homogeneous material, the rate of heat loss for a given temperature difference across the thickness will
A) become one-half its original value. B) double. C) become one-fourth its original value. D) quadruple. E) become one-eighth its original value.
A person looks horizontally at the edge of a swimming pool. If its length is 5 m, and the pool is filled to the surface, to what depth (in m) could the observer see? (n for water is 1.33)
a. 3.2 b. 4.4 c. 2.1 d. 1.0 e. 0.3