A two-stage rocket accelerates from rest at +3.57 m/s/s for 6.82 seconds. It then

accelerates at +2.98 m/s/s for another 5.90 seconds. After the second stage, it enters

into a state of free fall. Determine:

a. the maximum speed

b. the maximum altitude

c. the height of the rocket after 20.0 seconds

d. the total time the rocket is in the air (assuming it is launched from the ground)

Aproduction line at v. j. sugumaran's machine shop has three stations. the first station can process a unit in 7 minutes. the second station has two identical machines, each of which can process a unit in 16 minutes (each unit only needs to be processed on one of the two machines). the third station can process a unit in 10 minutes. ▼ is the bottleneck station, with a bottleneck time of nothing minutes per unit (enter your response as a whole number).