Problem: The half-life of nickel-63 is 85 years. How old is a painting with an activity that is 3.5% of the steady-state rate for Ni-63? a. 0.027 yr b. 3.0 yr c. 410 yr d. 2400 yr

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The half-life of nickel-63 is 85 years. How old is a painting with an activity that is 3.5% of the steady-state rate for Ni-63?

a. 0.027 yr

b. 3.0 yr

c. 410 yr

d. 2400 yr