8. Steady-state creep data taken for a stainless steel at a stress level of 70 MPa (10,000 psi) are given as follows:

(s1) 1.0 105 977

T (K) 2.5 103 1089

If it is known that the value of the stress exponent n for this alloy is 7.0, compute the steady-state creep rate at 1250 K and a stress level of 50 MPa (7250 psi).