Correct answer only !

looking at the above diagram at what point would the potential energy be the lowest?

True or false: the revolution of the earth creates day and night as it rotates around the sun

Which of these metals are magnetic?

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).