You have estimated spot rates as follows:

r₁ = 5.00%, r₂ = 5.40%, r₃ = 5.70%, r₄ = 5.90%, r₅ = 6.00%.

a.	What are the discount factors for each date (that is, the present value of $1 paid in year t)? (Do not round intermediate calculations. Round your answers to 3 decimal places.)

(b) the factor of safety of the bell crank at pin B with respect to the ultimate bearing strength. (b) the factor of safety of the bell crank at pin B with respect to the ultimate bearing strength