A boy is running a 100 m relay. What is main kind of energy does he possess at this time.
a) gravitational
b) kinetic
c)elastic potential

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Discuss the difference between thermal energy and heat. (terrance) terrance, egolf, r., congdon, donald. physical science student text, 5th edition. bju press, 2014. vitalbook file.

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.