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Calculate the number of litres of water delivered per minute by a pipe with cross-sectional area 15 square centimetres, if the water passes through the pipe at an average speed of 30cm/s (second)
P.S. Working out please

  • Maths -

    think about it.
    each second, a 30cm tall cylinder of water passes through the pipe

    v = base * height

    15cm^2 * 30 cm/s = 450 cm^3/s * 60s/min = 27000 cm^3/min = 27L/min

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