Which of the following types of stars are NOT suitable for advanced life?
A) K-type
B) M-type
C) G-type
D) F-type
D
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What is the root-mean-square speed of chlorine gas molecules at a temperature of 346 K? (R = 8.31 J/mol/K, NA = 6.02 × 10^23, and the molecular mass of Cl2 = 71)
a. 1.1E+2 m/s b. 3.5E+2 m/s c. 8.2E+4 m/s d. 1.2E+5 m/s e. 3.5E+4 m/s
If the following generic atom were to undergo ionization, what would be the charge of the most likely product?
A) +2 B) -2 C) -6 D) +6 E) would probably not ionize
Other things being equal, the pole-vaulter having the greatest ________ energy prior to going into the jump should jump the highest.
Fill in the blank(s) with the appropriate word(s).
The temperature coefficient of resistivity of platinum is 3.9 × 10-3/C°. If a platinum wire has a resistance of R at a temperature of 23°C, to what temperature must it be heated in order to double its resistance to 2R?
A) 730°C B) 280°C C) 300°C D) 930°C