An oxygen atom (mass 16 u) moving at 667 m/s at 14.0° with respect to the î-direction collides and sticks to an oxygen molecule (mass 32 u) moving at 506 m/s at 132° with respect to the î-direction. The two stick together to form ozone. What is the final velocity (magnitude in m/s and direction in degrees counterclockwise from the +î-axis) of the ozone molecule? (Assume given angles are measured counterclockwise from the +î-axis.) magnitude ?
direction ? ° counterclockwise from the +î-axis

The long handle on a rake is a(n) a. lever b. screw c. wedge d. inclined plane

Why does lightning travel from clouds to the ground?

Four point charges each having charge q are located at the corners of a square having sides of length a. find symbolic expressions for the following. (a) the total electric potential at the center of the square due to the four charges (use any variable or symbol stated above along with the following as necessary: ke.) vtotal= (b) the work required to bring a fifth charge p from infinity to the center of the square (use any variable or symbol stated above along with the following as necessary: w=