Roseanne heated a solution in a beaker as part of a laboratory experiment on energy transfer. after a while, she noticed the liquid solution began to circulate within the beaker. what process involving heat transfer did roseanne observe inside the beaker?

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=