ऐतिहासिक साधनांचयावरून कोणकोणत्या गोष्टी कल्पना येऊ शकते?
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A pipe of 5 cm diameter is carrying an oil of viscosity 0.8 stokes. If the Reynold’s number of oil flow is 1800, find the velocity at radius 0.6 cm from the wall.
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