A heavy sphere attached to a string should hang at an angle theta when immersed in a stream of velocity U, as in Fig P7 80 Derive an expression for theta as a function of the sphere and flow properties What is theta if the sphere is steel (SG 7 86) of diameter 3 cm and the flow is sea level standard air at U 40 m s Neglect the string drag D

Question: A heavy sphere attached to a string should hang at an angle θ when immersed in a stream of velocity U, as in Fig. P7.80.

A heavy sphere attached to a string should hang at an angle θ when immersed in a stream of velocity U, as in Fig. P7.80. Derive an expression for θ as a function of the sphere and flow properties. What is θ if the sphere is steel (SG = 7.86) of diameter 3 cm and the flow is sea-level standard air at U = 40 m/s? Neglect the string drag.

A heavy sphere attached to a string should hang

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