Suppose there a joint where the bolts have a stiffness of 0.877 MN/mm per bolt and the members have a stiffness of 3.116 MN/mm per bolt. The bolts are M14 x 2, ISO 12.9 class, installed for permanent installation. The maximum load is 45,000 N per bolt. For the fatigue calculation, consider that the minimum load is 7,500 N per bolt. a) What is the stiffness constant, C, of the joint? b) What is the proof load, SpAt, of the bolt, in N? c) What is the pre-load, Fi, on the bolt, in N? d) What is the factor of safety in yield, np? e) What is the load factor of safety, nu? f) What is the joint separation factor of safety, no? g) What is the midrange stress, Om, in MPa? h) What is the amplitude stress, da, in MPa? i) What is the initial stress, oi, in MPa? j) What is the fatigue factor of safety, né? k) Is this joint safe in both static and fatigue loading?