recall that in the big yellowstone fires, lodgepole pines burned and then grew back within several decades. with respect to fire, are lodgepole pines resistant and/or resilient?

Brother ur in collage do it yourself or i will tell prof. mike

Active site is where they touch.

It depends on the surface of the levels. the rougher the surface, the greater is the frictional force. for rougher surfaces, you would need to exert greater force to move the object. the concept is that, you must overcome the frictional force in order to bring the object into motion. this is the reason why we add lubricants to the joints so they could easily move. this answer was on