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Caio
Questions (2)
A wave with a frequency of 90.0 Hz travels through steel with a wavelength of 3.46 m. What is the speed of this wave?
1 answer
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Determine the total time that must elapse until only ΒΌ of an original sample of the radioisotope Rn-222 remains unchanged.
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Answers (1)
C A B B C 100% correct just did quick check.
