A2.5-cm-diameter horizontal water jet with a speed of vj = 40 m/s relative to the ground is deflected by a 60°stationary cone whose base diameter is 25 cm. water velocity along the cone varies linearly from zero at the cone surface to the incoming jet speed of 40 m/s at the free surface. disregarding the effect of gravity and the shear forces, determine the horizontal force f needed to hold the cone stationary

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?