A satellite has an initial radioisotope power supply of 50 watts (W). The power output in watts
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A satellite has an initial radioisotope power supply of 50 watts (W). The power output in watts is given by
\[P=50 e^{-t / 250}\]
where \(t\) is the time in days. Solve for \(t\) to find the time when the power supply is \(30 \mathrm{~W}\).
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