A 2.0 cm X 3.0 cm rectangle lies in the xy-plane. What is the magnitude of the electric flux through the rectangle if a) E = (100i - 200k) N/C?
b) E = (100i - 200j) N/C?

Aball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. if the ball hits the floor with a speed of 2.40 m/s and rebounds with a speed of 1.70 m/s, determine the following. (a) magnitude of the change in the ball's momentum (let up be in the positive direction.)

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?

Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created