B. A stone is dropped in a calm and quiet pond. The generated waves move in...
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B. A stone is dropped in a calm and quiet pond. The generated waves move in a circular form with 4 cm/sec speed. Find out with what speed the area covered by the waves is increasing when the radius of the travelling circular waves is 10 cm. (2019) B. A stone is dropped in a calm and quiet pond. The generated waves move in a circular form with 4 cm/sec speed. Find out with what speed the area covered by the waves is increasing when the radius of the travelling circular waves is 10 cm. (2019)
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