1polar bears have thick fur to keep them warm.
(a) this photograph of a polar bear was taken using visible light.
the diagram shows a thermal image of the same scene.
polar bear
snow
darker colours in this image indicate lower temperatures.
discuss what information the image gives about the temperatures of the objects shown.

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].