Aplastic cube with a coin taped to its top surface is floating partially submerged in water. a student marks the level of the water on the cube, and then removes the coin and tapes it to the bottom of the cube. afterward, the student returns the cube to the water. a. above the water lineb. below the water linec. level with water line

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).