A 2.0-mol ideal gas system is maintained at a constant volume of 4.0 L. If 100 J of heat is added, what is the work done on the system?
a. zero
b. 5 J
c. ?3.3 J
d. 20 J
e. 3.3 J
a
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Stars of the main sequence all fall in luminosity class ________
Fill in the blank(s) with correct word
The person who first explained the blackbody spectrum was
a. Max Planck. b. Albert Einstein. c. Neils Bohr. d. Erwin Schrödinger. e. Werner Heisenberg.
Muons at speed 0.9995c are sent round and round a circular storage ring of radius 550 m. If a muon at rest decays into other particles after an average T =2.2 × 10^?6 s, how many trips around the storage ring do we expect the 0.9995c muons to make before they decay?
a. 1 b. 2 c. 12 d. 6 e. 131
A grating has 5150 lines per centimeter ruled on it
What is the angular separation between the first- and the third-order bright spots on the same side of the central maximum when the grating is illuminated by a beam of light with wavelength 633 nm?