The top of the thermosphere is called the
a. stratopause.
b. tropopause.
c. mesopause.
d. thermopause.
d
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Entropy: A 700-g quantity of an ideal gas undergoes a reversible isothermal compression at a temperature of 330 K. The compression reduces the volume of the gas from 0.40 m3 too 0.15 m3. The molecular mass of the gas is 38.0 g/mol. What is the entropy change for the gas during this compression? (R = 8.31 J/mol ? K)
A. -150 J/K B. -57 J/K C. 150 J/K D. 57 J/K E. 0 J/K
Convert 1.2 × 10-3 to decimal notation
A) 1.200 B) 0.1200 C) 0.0120 D) 0.0012 E) 0.00012
Which one of the following processes of heat transfer requires the presence of a fluid?
a. conduction b. radiation c. convection d. none of the above choices are valid
Capacitor #1 has parallel plates of length L and width W, plate separation d, and is filled with dielectric with constant K.Capacitor #2 has parallel plates of length 2L and width 2W, plate separation 2d, and is filled with dielectric with constant 2k. If a voltage V is applied to capacitor #1 and a voltage 2V is applied to capacitor #2, which capacitor stores more energy and by what factor?
a. Capacitor #2 by a factor of 8 b. Capacitor #2 by a factor of 16 c. Capacitor #1 by a factor of 4 d. Both capacitors store the same energy.