Explain how scientific knowledge develops through making observations about the natural world.

scientific knowledge develops through making observations about the natural world. an observation may generate a scientific question, which may lead to a hypothesis. the hypothesis can be tested through experimentation. the results of experimentation lead to changes in scientific knowledge.

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=