If a liter of water has a mass of one kilogram and a liter of mercury has a mass of 13.6 kilograms which is denser? why?

What statements accurately describe atoms

As a car drives with its tires rolling freely without any slippage, the type of friction acting between the tires and the road is 100) a) static friction. b) kinetic friction. c) a combination of static and kinetic friction. d) neither static nor kinetic friction, but some other type of friction. e) it is impossible to tell what type of friction acts in this situation.

Most short-period comets do not have randomly oriented orbits because