A Bergen County man already facing charges he exposed himself and masturbated in front of a child in Englewood faces charges in two other similar incidents involving more children, authorities said. Dawid Iwaszek, 34, of Englewood, was arrested last month and charged with second-degree criminal sexual assault by sexual contact, third-degree endangering the welfare of a child and fourth-degree lewdness for an incident that occurred in front of a child on May 23, according to Bergen County Prosecutor Mark Musella. “During the course of the investigation, similarities were noted between this inci…