| 1. | Helicity indicates the orientations of the spin and translational momentum vectors.
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| 2. | :: : Right, the angular momentum vector has changed.
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| 3. | The Dirac quantum operator corresponds to the particle four-momentum vector.
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| 4. | The length of this momentum vector must be larger than m _ f.
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| 5. | The physics of twisting can be explained by looking at the components of the angular momentum vector.
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| 6. | There is in fact no way to define a global energy momentum vector in a general curved spacetime.
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| 7. | It can be seen that for any object, the coriolis force over it is proportional to its momentum vector.
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| 8. | This information together with the detected position of the neutron is used to construct the momentum vector of the neutrons.
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| 9. | In terms of a momentum vector, there is an angle between the axis of the rocket engine and the gas flow.
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| 10. | The angular momentum vectors of the two flywheels won't cancel-both will resist angular momentum changes of their respective systems.
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