Aproton (mass 1 u) moving at 5.40 x 106 m/s collides elastically and head‐on with a second particle moving in the opposite direction at 1.00 x 106 m/s. after the collision, the proton is moving opposite to its initial direction at 5.60 x 106 m/s. find the final velocity (in m/s) of the second particle. [take the proton’s initial velocity to be in the positive direction.]

There are two-speed cameras, one in an are where the speed limit is 30 km/h and another where the speed limit is 50 km/h. in which will there be a smaller time interval between the photographs? explain your answer.

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

If a nissan titan has a mass of 2,300 kilograms how many grams is that