What is the advantage of working with a trainer over looking at exercises online when you are starting a workout routine? A.
You can find free information online.
B.
There is no advantage—either will work.
C.
A trainer will have fewer options for exercise.
D.
A trainer can make sure that you have the right form.

PLEASE NO LINKS

What would occur if the index of refraction of a material was less than n=1? the speed of light would increase to a speed larger than the maximum speed of light in a vacuum. the light wave would not bend at all though the material. the light wave would not be able to refract and would instead reflect off of the material. the speed of light would reduce to values close to 0 m/s.