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A 50 kN capacity screw jack consists of a square threaded steel screw meshing with a bronze nut The nominal diameter is 60 mm and

A 50 kN capacity screw jack consists of a square threaded steel screw meshing with a bronze nut The nominal diameter is 60 mm and the pitch is 9 mm The permissible bearing pressure at the thread is 10 Nmm.

Evaluate the following

(1) Length of the nut and

(1) Transverse Shear stress in the nut.

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