The rms velocity of an oxygen molecule in a gas is 390 m/s. If the absolute temperature is increased by 20%, then what is the rms velocity?
A. 427 m/s
B. 502 m/s
C. 567 m/s
D. 604 m/s
E. 635 m/s
A. 427 m/s
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What does this photograph show?
A) It is a picture of our own Milky Way Galaxy. B) It is a picture of the Andromeda galaxy, located about 2.5 million light-years away. C) It is a picture of a cloud of gas known as the Orion Nebula. D) It is a picture of our own solar system. E) It is a picture of a young star in the process of being born.
Which of the following were marine invertebrates that looked like plants and left fossil segments sometimes called "Indian money"?
a. Trilobites b. Gastropods c. Crinoids d. Brachiopods
How wide must a narrow slit be if the first diffraction minimum occurs at ±12° with laser light of 633 nm?
a. 3.0 × 10^?6 m b. 3.0 × 10^?5 m c. 6.1 × 10^?6 m d. 6 .1× 10?5 m e. 1.5 × 10^?6 m
Due to the extremely rapid orbital velocities of material near the center of many galaxies, these galaxies are believed to contain ____________________ at their centers
Fill in the blank(s) with correct word