The presenter in the video assumes that the container holding the incompressible liquid is in a vacuum. How would the speed of the liquid exiting the hole change if the container is in air (i. e., both the liquid surface and the hole in the container are exposed to the ambient atmosphere)

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=