The volume of a cylinder equals 70 cubic inches when the piston is at bottom center. when the piston is at the top of the cylinder, the volume equals 10 cubic inches. what is the compression ratio?

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Apiece of metal 75g at 110°c is dropped in a container with 500g at 20°c. the h2o if temperature is 24°c find specific heat capacity of metal

Light from two different sources are incident upon the same side of a polarizing filter. light from one source is polarized with total intensity ip, while light from the other source is unpolarized with total intensity iu. as you rotate the polarizing filter through 360 degrees, the intensity of the transmitted light on the other side varies by a factor of 9. what is the relative intensity of the initial polarized source to the unpolarized source, or ip/iu?