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Physics, 26.07.2019 17:00 ZachLaVine2016
Q: a: sarah and maria made a telephone using two cans and a string. it was a very long string. maria went upstairs in her house and sarah stayed downstairs. maria spoke softly into the can. "i can hear you! ' sarah said back. how can this happen? a) sound waves travel through a vacuum. b) sound waves travel from high to low. c) sound waves travel through solids like the string. d) maria talked so loudly that sarah could hear her without the phone.
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