Physics, 22.10.2020 19:01, marelinatalia2000

Water is falling on a surface, wetting a circular area that is expanding at a rate of 4 mm2 /s. How fast is the radius of the wetted area expanding when the radius is 150 mm

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Water is falling on a surface, wetting a circular area that is expanding at a rate of 4 mm2 /s. How...