How a charge and ions are connected

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

Which of the following is an example of motion in two dimensions?

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