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22 December, 03:15

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 wife's phone 3740m away?

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  1. 22 December, 06:53
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    1.958 * 10^-5 seconds or 0.00001958 seconds.

    Step-by-step explanation:

    3740 = 3.74 * 10^3 in scientific notation.

    Time = distance / speed.

    = 3. 74 * 10^3 / 1.91 * 10^8

    = 1.958 * 10^-5 seconds.
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