Friction
Weight and surface affect friction. The more mass an object has more friction that will occur ex:/ It would be harder to slide an elephant across a floor than a hockey puck. This is because the large amount of friction on the elephant would slow it down. The smoother the surface the less friction. ex:/ There will be more friction on a floor of sandpaper than there would be on a floor of ice.
Matt surfaces are better absorbers of thermal radiation than shiny surfaces, as the light "bounces" around on the Matt surface meaning more energy can be absorbed, compared to a shiny surface. A look at a cross section of a Matt surface may be helpful.
well, it is obvious that carpet would most likely win. the reason why is because it is the hardest surface. and it does not depent on the details. it depends, though, on the weight of the ball. if it is lighter, the ball would be faster and easier to use.
If you are talking about land above sea , then it would be called run off, because when precipitation falls , whether it is rain or snow , at some point it usually makes its way from the land to the sea via flowing over the surface of the earth.
A gradual change would indeed be much easier to adapt to, because there is more time to prepare. However, a quick change (say, a hurricane hitting a coast) would cause large amounts of distress because no organism in the ecosystem was prepared for it. There would be no time to get used to the problematic sequences. But, if there was a gradual change, like heating up slowly over the years, the organisms would be able to realize what was happening, and begin to change their ways based on the climate.
The answer is : Increase because friction would decrease.
It would be increased because the loss due to friction would be reduced.
The smoother the surface of a ramp, the greater is the danger of a vehicle slipping and losing traction.A wet, smooth ramp could cause a pedestrian to slip over and be hurt.
The smoother the surface of a ramp, the greater is the danger of a vehicle slipping and losing traction.A wet, smooth ramp could cause a pedestrian to slip over and be hurt.
The smoother the surface of a ramp, the greater is the danger of a vehicle slipping and losing traction.A wet, smooth ramp could cause a pedestrian to slip over and be hurt.
Dirt , assuming it is flat and dry . The answer depends upon the velocity of the ball and what resistance there is in either the dirt or grass .
It would be smoother and there would be less lost, as pollution such as smog eats into the limestone.
Nothing much in reality. Its surface would be smoother (weathering) and it would be a more desirable target for our space voyaging; but those are superficial things.
A firm surface, preferably a mild descent.
Mars
A bulldozer.
It depends where the rock was formed. If it was formed inside the earth, it would be rough. If it was formed on the surface, it would be smoother than the rock formed inside the earth.