A jar filled with gas is placed directly in front of a second jar filled with gas. Using a spectroscope to look at one jar through the other you observe dark spectral lines. The jar closest to you contains
A) gas at the same temperature as the other jar.
B) the hotter gas.
C) gas at very high pressure.
D) the cooler gas.
E) the exact same gas as the other jar.
Question 2
On an H-R diagram, stellar radii ________.
A) decrease from left to right
B) are greatest in the lower left and least in the upper right
C) increase diagonally from the lower left to the upper right
D) are impossible to determine
Cougar - Close-up front face
Myopia (nearsightedness). In the uncorrected top figure, the image comes into focus in front of the
The Upper Troposphere: The Polar Front and Jet Streams
Vertebral column. Avoid heavy pressure directly over spinous processes.
Cold Front
Air-filled bladders that encase the seeds of some sedges (Carex) allow the fruits to float in their