Mass of a particle at rest in an intertial frame.
1 So everything ends up on the same footing as rest mass ?
2 At zero velocity, it has only its rest mass energy-notuseful for our purposes.
3 This is true even for photons, which do not have any rest mass at all.
4 This particle's rest mass is much lower than that.
5 When they collided, this kinetic energy could be converted to rest mass energy, so that particles of higher mass could be created.
6 Each one has its own distinctive rest mass which serves conveniently to identify it, though there are also other, more subtle, differences.
7 Stick to photons -no resting mass , no charge, no controversy on the human scale.
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This collocation consists of: Translations for rest mass