The mass of a sulfur atom is 32.0 u, and the mass of a fluorine atom is 19.0 u. What is the mass of a mole of sulfur hexafluoride (UF6)?
a. 41.0 g
b. 20.5 g
c. 106 g
d. 146 g
e. 211 g
d
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The atmosphere of ____________ contains mostly nitrogen with some methane
a. Jupiter b. Earth's Moon c. Callisto d. Titan e. Miranda
Heavier stable nuclei tend to have
A) half as many protons as neutrons. B) the same number of neutrons and protons. C) more neutrons than protons. D) no clear trend in the relative number of neutrons and protons. E) more protons than neutrons.
A 50-g ball traveling at 25.0 m/s is bounced off a brick wall and rebounds at 20.0 m/s. A high-speed camera records this event. If the ball is in contact with the wall for 3.50 ms, what is the magnitude of the average acceleration of the ball during this time interval?
a. 714 m/s2 c. 6430 m/s2 b. 1430 m/s2 d. 12,900 m/s2
Standing waves of frequency 57 Hz are produced on a string that has mass per unit length 0.0160 kg/m. With what tension must the string be stretched between two supports if adjacent nodes in the standing wave are to be 0.71 meters apart?
What will be an ideal response?