| 单词 | Stokes' law |
| 释义 | Stokes' law A law that predicts the frictional force F on a spherical ball moving through a viscous medium. According to this law F = 6πrηv , where r is the radius of the ball, v is its velocity, and η is the viscosity of the medium. The sphere accelerates until it reaches a steady terminal speed. For a falling ball, F is equal to the gravitational force on the sphere, less any upthrust. The law was discovered by Sir George Gabriel Stokes |
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