For the same temperature increase in a system, the change in entropy, ?S, is largest in a reversible
a. constant volume process.
b. constant pressure process.
c. adiabatic process.
d. process in which no heat is transferred.
e. process in which no work is performed.
b
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Two loudspeakers placed 6.0 m apart are driven in phase by an audio oscillator whose frequency range is to A point P is located from one loudspeaker and 3.6 m from the other
The speed of sound is 344 m/s. The frequency produced by the oscillator, for which constructive interference of sound occurs at point P, is closest to A) 2580 Hz. B) 2903 Hz. C) 2473 Hz. D) 2795 Hz. E) 2688 Hz.
Describe the method of energy production in the Sun. What is the fuel? What is the end product? What kind of interactions occur? What is the role of temperature in the process? Could we use this process to produce energy on Earth?
What will be an ideal response?
What is the cosmic microwave background?
A. radiation released when neutral atoms formed in the young Universe B. radio noise from Seyfert galaxies C. radiation from the first stars formed when the Universe was young D. radiation from hot gas in intergalactic space