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1. |
A spherical particle is falling slow in a viscous liquid such that Reynolds number is less than 1. Which statement is correct for this situation? |
A. | nertial and drag forces are important |
B. | rag, gravitational and buoyancy forces are impportant |
C. | rag force and gravitational forces are important |
D. | one of the above |
Answer» C. rag force and gravitational forces are important | |