My applet does not work well in the cloud, why ?
My Applets (2) of concave mirrors, when I try it on my machine, it works well and in the cloud, no. If one moves the object (dragging the point "p"), bringing it closer or moving it to the mirror, the properties must be fulfilled, but if you verify, when you place it between the focus and the mirror, the virtual image (inside the mirror), it is formed or it does not appear, and if you download the applet, you can verify that it works very well. WHY ? The same happens, when I move the object between the center and the focus and the image to the infinite leaves the screen, when returning, there is another image ???? Why ?