After their embarrassing loss to the Chargers the Chiefs flew to Edward Jones Dome for an interconference duel against the Rams. In the first quarter the Chiefs trailed early as kicker Josh Brown nailed a 37 and a 52-yard field goal. They took the lead with QB Matt Cassel throwing a 2-yard TD pass to TE Leonard Pope, which was extended with RB Jamaal Charles getting a 2-yard TD run, followed by kicker Ryan Succop making a 53 and a 38-yard field goal. The lead was narrowed when RB Steven Jackson got a 5-yard TD run, but the Chiefs pulled away with RB Thomas Jones getting a 2-yard TD run.
Question: How many yards of difference were there between Josh Brown's first two field goals?
Answer: 15