| 21. | A common misconception occurs between phase velocity and group velocity ( analogous to centres of mass and gravity ).
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| 22. | :: : It is the centre of mass of the object ( this hypothetical rod ) that orbits.
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| 23. | As a martial art, I Liq Chuan emphasises control of the opponent's centre of mass ..
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| 24. | So the centre of mass of the shreds of the balloon and of the air will move in opposite directions.
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| 25. | Examples include the FMR layout, with the centre of mass of the engine between the front axle and the firewall.
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| 26. | For some time after the fall of Rome, large circus buildings fell out of use as centres of mass entertainment.
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| 27. | Any increment in total kinetic energy is unusable as the Centre of Mass of the system must maintain a constant velocity.
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| 28. | Certainly the device IN THE FIRST DIAGRAM will ROTATE about its centre of mass and not move anywhere when transfering the fluid.
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| 29. | Satellite ranging has already shown that for Mars, the centre of mass and the geometric centres do not coincided exactly either.
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| 30. | The centre of mass of the three particle system thus lies on the internal bisector of " " D ".
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