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A component, running at 125C in the laboratory, is modeled using a lognormal life distribution with a T_50 of 15 hours and a value of

A component, running at 125C in the laboratory, is modeled using a lognormal life distribution with a T_50 of 15 hours and a value of 1.0. Using an Arrhenius model with an activation energy of 1.3eV, find the acceleration factor for a use condition of 45C. What fraction of the components will be expected to survive up to 20,000 hours?

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