A ball is thrown vertically upward from the ground with speed v0 and is subject to a quadratic drag with magnitude cv2 . a) Show that the maximum height the ball reaches is given by ymax = v 2 ter 2g ln v 2 ter + v 2 0 v 2 ter . b) Show that the speed of the ball when it returns to the ground is given by vterv0 p v 2 ter + v 2 0 . Discuss the case when there is a lot of air resistance, and the case when there is very little.

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction