If -1,463 J of work must be performed to reduce the speed of an object from 12.9 m/s to 2.32 m/s, the
mass of the object must be kg.

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

Astudent weighing 700 n climbs at constant speed to the top of an 8 m vertical rope in 10 s. the average power expended by the student to overcome gravity is most nearly

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.