For a material that has no applied fields, the major contribution to the potential energy is the energy of chemical _____________.
Fill in the blank(s) with the appropriate word(s).
bonding
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During a protostar's T Tauri phase, it:
A) begins a period of reduced activity. B) expands dramatically. C) lies on the main sequence. D) may develop very strong winds. E) changes its spin direction.
A thin uniform film of oil that can be varied in thickness covers a sheet of glass of refractive index 1.52. The refractive index of the oil is 1.64. Light of wavelength 555 nm is shone from air at normal incidence on the film
Starting with no oil on the glass, you gradually increase the thickness of the oil film until the first interference maximum in the reflected light occurs. What is the thickness of the oil film at that instant? A) 139 nm B) 169 nm C) 183 nm D) 84.6 nm E) 91.3 nm
Suppose XL > XC. If switch A is closed in the figure below, what happens to the phase angle?
Which of these is a result first obtained by Planck?
a. That energy is emitted continuously from each atom. b. That different materials used to construct the hollow block with a small hole emit different energy spectral distributions. c. That energy is emitted in discrete quanta. d. That light exists only as photons. e. That at high temperatures, electromagnetic radiation is more intense at shorter wavelengths.