During which type of process applied to an ideal gas is there no change in internal energy of the gas?
A)
isobaric
B)
isothermal
C)
isochoric
D)
adiabatic
E)
Internal energy changes during any of these processes.
B
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Suppose you see a photo showing Jupiter half in sunlight and half in shadow (that is, a first quarter Jupiter). This photo might have been taken by ________
A) the Arecibo radio telescope in Puerto Rico B) the Galileo spacecraft that orbited Jupiter in the 1990s C) the Keck telescope on Mauna Kea, Hawaii D) the Hubble Space Telescope (which orbits Earth)
Light of wavelength 400 nm falls on a metal surface having a work function 1.70 eV. What is the maximum kinetic energy of the photoelectrons emitted from the metal?
(c = 3.00 × 108 m/s, h = 6.626 × 10-34 J • s = 4.141 × 10-15 ev • s, 1 eV = 1.60 × 10-19 J) A) 4.52 eV B) 3.11 eV C) 1.41 eV D) 2.82 eV E) 1.70 eV
While ionized hydrogen glows bright red, neutral hydrogen is transparent visibly and best studied with 21-cm radio waves
Indicate whether the statement is true or false
For an object in static equilibrium
A. The net torque about any point is zero B. None of these are true. C. The net torque about every point is different D. The net torque about every point is a nonzero constant