HII regions are found near stars cooler than 25,000 K because large amounts of ultraviolet photons would totally destroy the hydrogen atoms in the gas
a. True
b. False
Indicate whether the statement is true or false
False
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Body A has a higher temperature than body B. Which of the following statements is true?
1.Body A will feel hotter than body B. 2.Body A contains more energy than body B. 3.If placed in contact with each other, energy will flow from body A to body B. 4.If placed in contact with a third body having temperature greater than body A, body B will absorb more heat than A. 5.More than one statement is true.
The redshifts of the galaxies imply that the Universe is expanding and that we are at the center
Indicate whether the statement is true or false
You can use Spotify to embed or link to ______ media.
A. music B. photography C. video D. audio
A container is filled with water, and the pressure at the bottom of the container is P. Then the container is emptied halfway and topped off with oil of density 0.80 × 10^3 kg/m3, which floats on top of the water. What is the pressure at the bottom of the container now?
a. a pressure < P b. the same pressure P c. a pressure > P d. This is unable to be determined with the information given.