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Physics (fluids)

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1. You have a large wind tunnel of cross-sectional area 0.61[m2]. The wind speed is 4[ms-1]. Assume air density is 1 [kgm-3]. The Drag is 2.3[N].
What is the coeffecient of drag for the shape that has diameter 7.32[cm]? .
Use three sig. figs. or N/A if there is not enough information.

I got 57.5 but I just don't know if that's right

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