The velocity of light in a medium is half its velocity in
air. if a ray of light emerges from such a medium into
air, the angle of incidence at which it will be totally internally
reflected is

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.

In order to do work, the force vector must be question 1 options: in a different direction than the acceleration vector. in a different direction than the displacement vector. in the same direction as the displacement vector and the motion. in the same direction as the acceleration vector.