Question: chabod Failing, a reliability engineer, has determined_ th~t the reli~bility function for a critical solid-state power unit for use in a commumcat1ons satellite is R(t)

chabod Failing, a reliability engineer, has determined_ th~t the reli~bility function for a critical solid-state power unit for use in a commumcat1ons satellite is R(t) ::: 10/ (10 + t), t 0 and t measured in years. . . (a) How many units must be placed in parallel m order to achieve a rellability of 0. 98 for 5 yr of operation? (b) If there is an additional common mode, constant failure rate of 0.002 as a result of environmental factors, how many units should be placed in parallel? Compute the achieved system reliability

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