A steel sheet is hot rolled from a thickness of 0.16 cm to a thickness of 0.14 cm using 20 cm diameter rolls. The friction coefficient is 0.05. The steel has a flow stress of 206 MPa. Find the average pressure that the rolls exert on the metal.

What precautions should you take to prevent injuries when dealing with heavy loads?

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The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?