Un rayo de luz forma un ángulo de 30° con la normal de un espejo plano. ¿Cuál es el ángulo que forma el rayo reflejado con la normal? *

Ways that industry and agriculture use physical properties to separate substances

Why does lightning travel from clouds to the ground?

Determine the time it takes for a satellite to orbit the earth in a circular "near-earth" orbit. the definition of "near-earth" orbit is one which is at a height above the surface of the earth which is small compared to the radius of the earth, so that you may take the acceleration due to gravity as essentially the same as that on the surface. does your result depend on the mass of the satellite?