A laser produces light at 5.32x10-7 m. What is the frequency of the light?
A. 1.77x10-6 Hz
B. 1.60x1011 Hz
C. 1.88x107 Hz
D. 5.64x1014 Hz

In 1995 a research group led by eric cornell and carl wiemann at the university of colorado successfully cooled rubidium atoms to the 20-200 nk temperature range. assuming (incorrectly) that the rubidium atoms behave liké particles of a classical ideal gas, calculate the rms speed of a rubidium atom at a temperature of 112.0 nk. in the experiments one particular isotope of rubidium was used, rubidium-87. the molar mass of this isotope is 86.91 q/mol. tries 0/20 submit answer

Density of salty water as compared to the density of pure water is(a) is less(b) is always equal(c) is always more(d) may be less or more

Aknife blade is a(n) a. lever b. screw c. wedge d. inclined plane