A Carnot cycle, operating as a heat engine, consists, in the order given, of
a. an isothermal expansion, an isothermal compression, an adiabatic expansion, and an adiabatic compression.
b. an adiabatic expansion, an adiabatic compression, an isothermal expansion, and an isothermal compression.
c. an isothermal expansion, an adiabatic compression, an isothermal compression, and an adiabatic expansion.
d. an adiabatic compression, an isothermal compression, an isothermal expansion, and an adiabatic expansion.
e. an isothermal expansion, an adiabatic expansion, an isothermal compression, and an adiabatic compression.
e
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A black hole can be thought of as
a. a very massive object of finite size. b. a shell of material expanding from a white dwarf. c. a massive body of infinitely small size. d. a burnt out white dwarf.
Which of the following sequences of electromagnetic radiation is arranged in the order of increasing energy?
A) Gamma rays, X-rays, infrared radiation, and radio waves B) Radio waves, microwaves, gamma rays, and ultraviolet radiation C) Visible light, ultraviolet radiation, X-rays, and gamma rays D) Visible light, microwaves, radio waves, and infrared radiation
Consider a beam of free particles with a certain speed . If we double this speed, what happens to the beam’s de Broglie wavelength?
A. It increases by a factor of 2. B. It increases by a factor of 21/2. C. It remains the same. D. It decreases by a factor of 21/2. E. It decreases by a factor of 2.
A progressive JPEG is similar to an interlaced GIF.
Answer the following statement true (T) or false (F)