A platinan bar measure 5.0cm long, 40cm wide and 1.5 cm thick. if has a mass of 700.0grams.

Calculate the volume of platinum bar.

I need help :( Plz help me

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

Explain what it means to view something from a frame of reference. provide an example that illustrates your explanation. (4 points)