Thermodynamic Processes: The process shown on the pV diagram in the figure is
A. adiabatic.
B. isothermal.
C. isochoric.
D. isobaric.
Answer: C
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The chromosphere of the sun
a. is hotter than the photosphere. b. appears yellow-white in color during total solar eclipse. c. is the visible surface of the sun. d. produces an absorption spectrum. e. all of the above
A person is nearsighted with a far point of 75.0 cm
(a) What focal length contact lens is needed to give him normal vision? (b) What is the power of the corrective lens? What will be an ideal response?
Which of the following will affect the vertical speed of a segment of rope that has a wave propagating along it?
1.The speed of a transverse wave along a rope. 2.The amplitude of a transverse wave along a rope. 3.The frequency of a transverse wave along a rope. 4.All of these.
Think of Bernoulli's equation as it pertains to an ideal fluid flowing through a horizontal pipe. Imagine that you take measurements along the pipe in the direction of fluid flow. What happens to the sum of the pressure and energy per unit volume?
a. It increases as the pipe diameter increases. b. It decreases as the pipe diameter increases. c. It remains constant as the pipe diameter increases. d. No choices above are valid.