Assume you have perfectly spherical quartz grains in a stream with a velocity of 100 cm/sec.What is the minimum size of grain that would not move?
A)0.02 mm
B)2 mm
C)2 cm
D)20 cm

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The Answer of Assume you have perfectly spherical quartz grains in a stream with a velocity of 100 cm/sec.What is the minimum size of grain that would not move?
A)0.02 mm
B)2 mm
C)2 cm
D)20 cm

Assume You Have Perfectly Spherical Quartz Grains in a Stream