If you tip your body backward, you will reach a point where no muscle force is needed to keep your head upright. For the distances given in (Figure 1), at what angle does this balance occur? Express your answer in degrees.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant

When using the scientist method, which step comes last?

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).