Problem TWO identical rectangular rods of metal are welded end to end as shown in Fig. a and 10J of heat flows through the rods in 2.0 min. How long would it take for 30 J to flow throught the rods if they are welded as shown in Fig. b? a) 00C 100C 00C 100CProblem Two identical rectangular rods of metal are welded end to end as shown in Fig. a), and 10 J of heat flows through the rods in 2.0 min. How long would it take for 30 J to flow throught the rods if they are welded as shown in Fig. b? a) b) 0 0C 1000C 100 0 0C 0C