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8 January, 21:49

Find the intensity I of the sound waves produced by four 60-W speakers as heard by the driver. Assume that the driver is located 1.0 m from each of the two front speakers and 1.5 m from each of the two rear speakers.

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  1. 8 January, 21:54
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    The intensity of the sound waves produced by four 60-W speakers as heard by the driver is 173.33 W/m²

    Explanation:

    Sound intensity (I) is given as;

    I = P/r², W/m²

    Where;

    p is power measured in watt (W)

    r is the distance from the speaker measured in meters (m)

    The total intensity produced by the four speakers, can be calculated as follows;

    I = 2 * (60/1²) + 2 * (60/1.5²)

    I = 120 W/m² + 53.333 W/m²

    I = 173.33 W/m²

    Therefore, the intensity of the sound waves produced by four 60-W speakers as heard by the driver is 173.33 W/m²
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