Acharged isolated metal sphere of diameter 15 cm has a potential of 8500 v relative to v = 0 at infinity. calculate the energy density in the electric field near the surface of the sphere.

Aphysical change is a change in the size, shape,, or stafe of matter true or false

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?

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2