The speedometer in kevin's car reads in both miles/hour and kilometers/hour. what information is needed to convert between these two units?

The answer is: the number of miles in 1 kilometer

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.

gold is my favorite solid.