What do we call the angle between the initial velocity vector and the horizontal axis

Asun-sized star will spend most of its lifetime as a: white dwarf red giant protostar main-sequence star

Properties seen when one one substance changes to another are known as properties

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=