An athlete has a mass of 62 kg and a volume of 65 liters. what is the density is kg/l?

Aball has an initial velocity of 3 m/s. if there is no friction, what is the highest it could roll?

Diamond will scratch quartz. true or false

Based on the concept of the wave-like nature of light, huygens' theory of light postulates that the more light was "bent" by a substance the slower it would move while traversing across that substance. a) deflection b) interference c) refraction d) resonance