ELECTRONIC	w   w   w dot p h y s i c s dot u   b   c dot c   a   s l a s h   t i l d e   h o f f m a n n   s l a s h   n i dot h t m l v a r e l a	w   w   w dot p h y s i c s dot u   b   c dot c   a   s l a s h   t i l d e   h o f f m a n n   s l a s h   n i dot h t m l v a r e l a	1