Aperson's risk of sunburn on a certain body part is greater the more directly the sun's rays hit that body part. if a person is walking outside with the sun directly overhead, what body part has the greatest risk for sunburn? (assume that none of the body parts mentioned below are covered by a hat or hair or anything.) forehead nose chin top of the ears

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].