| 31. | Increasing evidence indicates that the average mass density of the universe falls well below levels needed to confirm cosmologists'favorite models.
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| 32. | Also, unless the terrain varied in mass density, the gravitational field of the earth can be modeled as a point.
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| 33. | SoBtan calculated the mass density of accreted material as it is directly related to the energy density of quasar light.
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| 34. | The highest strings must be under the greatest tension, yet must also be thin to allow for a low mass density.
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| 35. | If the universe is expanding faster and its mass density is low, Frenk suggested, large structures can no longer grow larger.
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| 36. | The divergence of the gravitational field is equal to the mass density, which is non-negative everywhere and positive in some places.
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| 37. | This relationship between the speed, tension, and mass density can be arranged into a new equation, v = T / ?
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| 38. | Since the mass density is proportional to the number density through the average molecular mass " m " of the material:
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| 39. | He starts the book with quantum physics explaining ? ( dark matter and all mass density ) and how it is measured.
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| 40. | The designer of a short piano is forced to use thick strings to increase mass density and is thus driven into inharmonicity.
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