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Assuming that the drag coefficient is 2.6, calculate the air velocity necessary to suspend 1.5 cm (screened) particles of shredded aluminum; ps = 2.70 g/cm^3 and r= 0.0012 g/cm^3.

a. 1003 cm/sec

b. 1196 m/sec

c. 986 cm/sec

d. 655 cm/sec

e. none of the above

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