Question
This force balances weight for an object moving at terminal velocity. For 10 points each:
[10e] The motion of a projectile moving through a fluid is opposed by what force?
ANSWER: drag force [or air resistance or fluid resistance; prompt on resistance]
[10m] This physicist names a law that states that the drag on a moving sphere is proportional to viscosity times the sphere’s radius times its velocity. That law applies in creeping flow, which is sometimes named for this physicist.
ANSWER: George Gabriel Stokes [accept Stokes’ law or Stokes flow]
[10h] Due to axi·symmetry, Stokes’ law can be derived using one of these functions, which are usually denoted by the letter psi. In 2D flows, the components of velocity are partial derivatives of this function, up to a sign.
ANSWER: stream functions
Summary
| 2023 UMN COOT | 08/19/2023 | Y | 3 | 16.67 | 100% | 67% | 0% |
Data
| BHSU | doubleplusnegfive | 10 | 10 | 0 | 20 |
| Our Job is Buzz | Weird Klaus Barbie | 10 | 0 | 0 | 10 |
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