The British system is a(n) ______________ , or base-12 system
Fill in the blank(s) with correct word
duodecimal
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Which one of the methods below enables astronomers to measure the distance of a star near the Sun in our galaxy?
a. sound echoes knowing the speed of sound and time b. parallax using Earth's orbit c. human binocular vision d. Balmer series e. none of the above
What type of graph (straight line, parabola, hyperbola) was obtained in Procedure 1, Step 5?
The standard "picture" of the hydrogen atom as a tiny proton with an electron moving in an ellipse around it is extremely oversimplified. The main thing wrong with this picture is
A) the path is actually much more complicated than the elliptical path pictured. B) the electron should be pictured as a spread-out matter field. C) actually there are several electrons going around in the hydrogen atom D) the electron is actually much larger than the proton. E) Actually this picture is not oversimplified.
An empirical interatomic pair potential for xenon atoms, in units of eV, and nm, has been determined to be
The lattice parameter of FCC xenon is equal to 0.630 nm.
(a) Determine the equilibrium pair bonding energy.
(b) Determine the cohesive energy of a xenon crystal at 0 kelvin using only the nearestneighbor interactions, and compare your result with the value in the periodic table.
Comment on any observed difference.