Coming off from their divisional home win over the Chiefs, the Broncos flew to Charlotte for a Week 15 interconference duel with the Carolina Panthers. In the first quarter, Denver drew first blood as QB Jay Cutler completes a 7-yard TD pass to RB P.J. Pope. Carolina soon responded with QB Jake Delhomme completing a 15-yard TD pass to WR Steve Smith, yet Denver answered with kicker Matt Prater nailing a 43-yard field goal. Carolina kicker John Kasay ties the game with a 39-yard field goal. In the second quarter, Carolina took the lead with rookie RB Jonathan Stewart getting a 2-yard TD run, while Kasay closed out the half with a 44-yard field goal. In the third quarter, Carolina increased its lead with RB DeAngelo Williams's 56-yard TD run for the only score of the period. In the fourth quarter, Carolina sealed the win with Kasay's 42-yard field goal.
Question: How many yards separated the longest and second longest field goals of the first half?
Answer: 4