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3. 1 point The flow rate of liquid metal into the downsprue of a mold = 1.0 L/sec. The cross-sectional area at the top

3. 1 point The flow rate of liquid metal into the downsprue of a mold = 1.0 L/sec. The cross-sectional area at the top of the sprue = 750 mm^2, and its length = 200 mm. What area should be used at the base of the sprue to avoid aspiration of the molten metal? Answer should be in xx5 mm^2 format I

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