A new planet has been discovered that has a mass one-sixth that of Earth and a radius that is six times that of Earth. Determine the free fall acceleration on the surface of this planet. Express your answer in the appropriate mks units.

What is the earliest point in the universe that we can observe? why can’t we see back further than this?

Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?

Ways that industry and agriculture use physical properties to separate substances