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Asolid has a volume and a shape. fixed, variable, fixed, variable
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The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?
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Select the correct answer. what does the process of natural selection involve?
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Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
Asolid has a volume and a shape. fixed, variable, fixed, variable...
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