A device that makes use of a bimetallic strip is a
a. thermometer
b. thermostat
c. choke control in an old automobile
d. all of the above
e. none of the above
D
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Our earliest atmosphere, formed by outgassing, was much poorer in ________ than now
A) carbon dioxide B) hydrogen C) oxygen D) methane E) nitrogen
Find the binding energy (in MeV) of carbon-12. Assume: mC = 12.000 000 u m p = 1.007 825 u m n = 1.008 665 u u = 1.66 × 10^-27 kg
a. 14.8 b. 0.511 c. 9.11 d. 92.3 e. 46.2
Which of the following is characteristic of mountain stream valleys?
A) They are curvy and slow moving. B) They are V-shaped and have rapids. C) They have deltas. D) They are deep and wide.
What is the kinetic energy of an electron that passes undeviated through perpendicular electric and magnetic fields if E = 4.0 kV/m and B = 8.0 mT?
A. 0.65 eV B. 0.71 eV C. 0.84 eV D. 0.54 eV E. 1.4 eV