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Mathematics, 23.10.2019 15:50 villarrealc1987
Sound travels along a telephone cable at 1.91 * 10^8 ms^-1 .how long does it take tetsuo's voice to travel from his office phone in tokyo to his brother in beijing 2.1*10^6 m away?
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Sound travels along a telephone cable at 1.91 * 10^8 ms^-1 .how long does it take tetsuo's voice to...
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