Suppose that when we add 20.8 J to 1 mol of a certain gas, its temperature is observed to increase by 1 K. Which of the following statements is true?
A. This gas is monatomic.
B. This gas is diatomic.
C. This gas is polyatomic.
D. One cannot determine the type of gas without information that we are not given.
E. The results described are impossible.
B. This gas is diatomic.
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A neutrino is ______________
a. a photon of light b. a positively charged particle c. a subatomic particle d. a negatively charged particle
Three point charges each equal to 10 microcoulombs are located at x = 1m, x = 2m, and x = 3m, respectively, on the x-axis. What is the magnitude of the electric field at the origin?
A) 2.25 × 103 N/C B) 1.22 × 105 N/C C) 1.75 × 106 N/C D) 2.70 × 104 N/C E) 1.65 × 104 N/C
Does Hubble's law work well for galaxies within the Local Group? Why or why not?
A) no, because galaxies in the Local Group are gravitationally bound together B) no, because Hubble did not know the Local Group existed when he discovered his law C) no, because we do not know the precise value of Hubble's constant D) Yes, it works so well that we have never detected any measurable deviations from its predictions.
Where are volcanoes most common?
a. subduction zones b. transform boundaries c. folded mountain ranges d. continental basins and ranges e. plates pushing against one another