Nuclear reactions in stars manufacture energy and heavy atoms under the supervision of a natural thermostat
Indicate whether the statement is true or false
True
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A clarinet behaves like a tube closed at one end. If its length is 1.0 m, and the velocity of sound is 344 m/s, what is its fundamental frequency (in Hz)?
a. 264 b. 140 c. 86 d. 440 e. 172
The interrelationship among the processes that produce the three classes of rock is referred to as
a. the rock cycle. b. the bedding principle. c. the principle of cross-cutting relationships. d. metamorphism.
It is a misconception to imagine that space is empty-a vacuum
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If one of the caissons of the Falkirk Wheel contained a sunken boat, resting on its bottom, and the other carried a floating boat, the wheel balance would
A) still be maintained. B) be upset and more energy would be needed for operation. C) render the machine useless. D) violate Archimedes' principle.