Unpolarized light with intensity s is incident on a series of polarizing sheets. the first sheet has its transmission axis oriented at 0°. a second polarizer has its transmission axis oriented at 45° and a third polarizer oriented with its axis at 90°. determine the fraction of light intensity exiting the third sheet with and without the second sheet present.

Describe uniform velocity and variable velocity in short

Blank liquids and gases exert a buoyant force on objects placed in them

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].