Who wanna be my friend that I do t!k t0ks with wanna be my friend

When an object is heated it contracts. a. true b. 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

What is the rate of change in a objects position?