Help please :( - Flange Bolt coupling

A flanged bolt coupling consists of two concentric bolt circles. One bolt circle consists of six 0.5-in-diameter steel bolts on a circle 9 inches in diameter and the other consists of eight 0.5-in-diameter steel bolts on a circle 12 inches in diameter. What is the shearing stress in the bolts if a torque of 7 kip-ft is to be carried by the assembly?

Beam Deflection

p_20150624_202656_bf.jpghdr.jpg" />

hi please help me with my assignement.

this beam made of steel with moduus youg of 300 gpa, cross sectional area A1 =10.10^-6 m2
A2 = 20. 10^-6 m2.
length L1 = 2m
Length L2 =1,8 m.

at he level that is very rigid ring mounted to apply the load F=8 KN.

questions :
1.calculate reaction pedestal points A and B
2. stresses that ocur in cross section A1 and A2
3. the displacement Point C.