John's grandfather clock has a pendulum that keeps the seconds. the observed pattern of motion for three complete swings of the pendulum is shown. assuming that the pendulum starts at the right and moves toward the center first, predict the direction the pendulum will move next

Consider a production line with five stations. station 1 can produce a unit in 9 minutes. station 2 can produce a unit in 10 minutes. station 3 has two identical machines, each of which can process a unit in 12 minutes (each unit only needs to be processed on one of the two machines. station 4 can produce a unit in 5 minutes. station 5 can produce a unit in 8 minutes. which station is the bottleneck station?