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This is because the surface is more even and equal. For example if you have a wooden surface and a glass surface, the wooden surface would have more friction than the glass, because it is more un-even than the glass surface
If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that ====================================================== Allow me to add(: SEEMS TO COME FROM BEHIND THE SURFACE:>
Depends on the surface, sandpaper usually.
That surface would be called a "mirror".
The answer should seem to come from behind the surface.
This is because the surface is more even and equal. For example if you have a wooden surface and a glass surface, the wooden surface would have more friction than the glass, because it is more un-even than the glass surface
a ball would roll better on one surface vs the other because one surface may have more friction the the other surface. For example a smooth surface like a polished wooden floor would have a ball roll better than a carpet where the hairs are stopping the progression of the ball.
friction reduction
Smooth
If a person is in front of a smooth surface from which a sound is reflected, the person would hear a sound that ====================================================== Allow me to add(: SEEMS TO COME FROM BEHIND THE SURFACE:>
Depends on the surface, sandpaper usually.
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Rough and smooth it would be the Endoplasmic Reticulum
Sandblasters are great for sanding down any surface that isn't as smooth as you desire it to be. It's particularly useful when making wooden furniture from raw materials and want to eliminate the potential of getting splinters from them.
A medieval priest would use tools such as a thurible (incense burner), holy water sprinkler, chalice and paten for the Eucharist, a processional cross for religious processions, and a crosier (bishop's staff) as symbols of authority.
A clam shell is not smooth because being smooth would decrease friction between a clam and the surface it lives on. With low friction, a clam would go places it would not want to go.
seems to come from behind the surface