Atrain travels 72 kilometers in 3 hours and then 54 kilometers in 4 hours what is the average speed

Natural forces that can alter ecosystems include seasons and climate changes. t or f

Work = force × a. work b. energy c. distance d. momentum

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?