The gas between stars that has a temperature below a few hundred kelvins is best studies with which kind of telescope?
A) Radio
B) Infrared
C) Optical
D) Ultraviolet
E) X-ray
B
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Energy flows by radiation or convection inside stars but almost never by conduction
a. True b. False Indicate whether the statement is true or false
All galaxies start out as members of the blue cloud, but some transition to the red sequence
Indicate whether the statement is true or false
The baryon having which of the following quark contents is electrically neutral?
A. dds B. bbc C. uud D. ucs
The temperature of a quantity of ideal gas in a sealed container is increased from 0°C to 819°C. What happens to the speed of the molecules with average kinetic energy of the gas as a result of this temperature increase?
a. It does not change since this speed is independent of temperature. b. It increases but it is less than double the original speed. c. It doubles. d. It quadruples.