The fundamental frequency of HF is 8.72 × 10^13 Hz. The energy associated with a transition from the 10th to the 9th vibrational quantum number (in eV) is
a. 3.61
b. 0.361
c. 0.060 5
d. 0.605
e. 0.182
b
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An airplane that is flying level needs to accelerate from a speed of 2.00 × 102 m/s to a speed of 2.40 × 102 m/s while it flies a distance of 1.20 km. What must be the acceleration of the plane?
A) 4.44 m/s2 B) 2.45 m/s2 C) 7.33 m/s2 D) 5.78 m/s2 E) 1.34 m/s2
What is the symbol used on the periodic table for the element Rubidium?
a. Rf b. Hs c. Rb d. No e. U
The frequency of red light is ________ that of a green light.
A. greater than B. the same as C. less than D. greater than, the same as, or less than, depending on a source of light
Metal lids on glass jars can often be loosened by running them under hot water. Why is this?
a. The hot water is a lubricant. b. The metal and glass expand due to the heating, and the glass being of smaller radius expands less than the metal. c. The metal has a higher coefficient of thermal expansion than glass so the metal expands more than the glass, thus loosening the connection. d. This is just folklore.