| 1. | The mix of the road material contributes to dry road surface friction.
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| 2. | Surface friction and roadway safety are important considerations as well for pavement decisions.
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| 3. | The spinning effect, along with surface friction, usually will produce a forward momentum.
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| 4. | Surface friction also causes winds to blow more inward into low pressure areas.
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| 5. | Typically the lubricant-to-surface friction is much less than surface-to-surface friction in a system without any lubrication.
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| 6. | Typically the lubricant-to-surface friction is much less than surface-to-surface friction in a system without any lubrication.
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| 7. | Surface friction testers are used at airports and on major roadways before ice formation or after snow removal.
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| 8. | Plasticity surface friction is also very low in comparison to the plastic deformation energy and can be neglected.
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| 9. | This layer, where surface friction slows the wind and changes the wind direction, is known as the planetary boundary layer.
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| 10. | In the absence of surface friction, contact stresses are normal ( i . e . perpendicular ) to the contact surface.
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