One of the ways to obtain super-strong magnetic fields is the explosive compression of a metal liner, similar to that shown in the figure, inside which a magnetic field with induction B0 is first created. Determine the field induction in the cylinder at the moment of maximum compression, if B0 = 5 T, the initial internal radius of the liner R0 = 5 cm, the radius at the moment of maximum compression Rmin = 0.5 cm. The shell is considered ideally conductive. Estimate the pressure required for such compression.

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