What are the atoms of an element that contains 48 protons in the nucleus

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

What is the measurement of how fast an object moves relative to a reference point?

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=