The rms speed of a certain sample of carbon dioxide molecules, with a molecular weight of 44 g/mole is 396 m/s. What is the rms speed of water molecules, with a molecular weight of 18 g/mol at the same temperature?
A) 253 m/s
B) 387 m/s
C) 421 m/s
D) 506 m/s
E) 619 m/s
E
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An ice cube with a small solid steel sphere frozen inside floats in a glass of water filled to the brim. What happens to the level of water in the glass as a result of the ice melting?
a. It goes up, overflowing. b. It stays the same. c. It goes down. d. It depends on air pressure, thus the answer is indeterminate.
Where is Jupiter's ring located? What is it made of, and why?
What will be an ideal response?
A ray of light traveling in air makes a 63.0° angle with respect to the normal of the surface of a liquid. It travels in the liquid at a 39.2° angle with respect to the normal
Find the critical angle for total internal reflection for this interface.
A freely falling object
a. has a uniformly increasing velocity. b. is unaffected by gravity. c. has a uniformly increasing acceleration. d. has a uniformly increasing displacement.