Define the refraction index of a medium..
whatt do you mean by the
that the critical angle
glass is 42°​

What is the difference between electrically neutral objects and electrically charged objects

Afeather of mass 0.001 kg falls from a height of 2 m. under realistic conditions, it experiences air resistance. based on what you know about friction, what can you say about the kinetic energy of the feather as it reaches the ground? acceleration due to gravity is g = 9.8 m/s2. a. ke < 0.0196 j b. ke = 00196 j c. je = 0 j d. ke > 0.0196 j

Which of the following bonds would be most polar? a. c-i b. c-br c. c-cl d. c-f e. c-o