A spacecraft is powered by electricity generated by the heat produced when 23894Pu decays with a half-life of 87.75 y. Engineers predict tha

Question

A spacecraft is powered by electricity generated by the heat produced when 23894Pu decays with a half-life of 87.75 y. Engineers predict that the spacecraft will have insufficient power to operate its instruments when the amount of 238 94Pu in its power generators drops below 67 % of the amount it had at launch on September 1, 1977

Required:
In what year will its instruments cease to function?

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Gerda 4 years 2021-08-05T03:29:42+00:00 1 Answers 12 views 0

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  1. diemkieu
    0
    2021-08-05T03:30:48+00:00
    Reply

    And what year will it’s instruments used to function

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