The resultant force on the trolley was 0.375 N. The mass of the trolley was 0.60 kg. Calculate the acceleration of the trolley. Give your answer to 2 significant figures.

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