The Principle of Fossil/Faunal Succession states that groups of fossil plants and animals occur in the geologic record in a definite and determinable order.
Indicate whether the statement is true or false.
Ans: True.
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Possible units for the coefficient of volume expansion are:
A. mm/C? B. mm3/C? C. (C?)3 D. 1/(C?)3 E. 1/C?
A plane is traveling at Mach 0.930 through air at a temperature of 0°C. What is the plane's speed? (Speed of sound at 0°C is 331 m/s.)
a. 308 m/s b. 331 m/s c. 424 m/s d. 93.0 m/s e. Mach number is undefined at 0°C.
A sound wave in a metal bar is an example of a longitudinal wave
Indicate whether the statement is true or false
Thanks to interferometry, a properly spaced set of 10-meter radio telescopes can achieve the angular resolution of a single, 100-kilometer radio telescope.
a. Yes, but with much lower sensitivity than a single, 100- kilometer telescope. b. Yes, and the resulting interferometer will have exactly the same properties as a single, 100-kilometer telescope. c. No, interferometry only works over much smaller distances. d. No, the blurring effects of Earth’s atmosphere limit the achievable angular resolution.