A college football stadium happens to be in your neighborhood, and you are watching the game at home on your TV. The team makes a touchdown and the capacity crowd in the stadium cheers. Like an echo, 3.5 s after you see the touchdown and hear the cheering on your home TV, you then hear the cheer of the crowd through your window. Approximately how far away, in kilometers, is the stadium from your house? Assume there are no additional delays at the TV station.