<p>How do you add a node to a Pane, StackPane, FlowPane, GridPane,BorderPane, HBox and VBox? How do you remove a node from thesepanes? Be sure to include a pane's observable
<br/><img src="https://media.cheggcdn.com/media%2Fdd6%2Fdd609e51-79c8-4f05-ba34-7c439a703ae1%2Fimage.png" alt="1. Find the total electric flux leaving the spherical surface r- 10 if the complete charge distribution consists of: a. A non-uniform line charge on the z-axis -2