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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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
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.
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
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