| 1. | Assume 0.80 as the starting centre of mass ."
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| 2. | A common misconception occurs between centre of mass and centre of gravity.
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| 3. | Another difference concerns the movement of the centre of mass of the body.
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| 4. | Each convex plane curve has a centre of mass.
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| 5. | These two stars orbit around their common centre of mass once every 200 years.
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| 6. | The two stars orbit around their common centre of mass once every 39 years.
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| 7. | The locus of centres of mass trace out a curve in 3-space.
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| 8. | The binary star revolves around its common centre of mass once every 121 days.
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| 9. | Work is done on the coin to draw it towards the centre of mass.
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| 10. | Would a satellite really orbit around the centre of mass of an irregular object?
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