The excited state of a certain atom is 3.2 eV ± 0.21 eV. 
,1 eV = 1.60 × 10-19 J)
(a)What is the average lifetime of this state?
(b)If the excited energy were doubled to 6.4 eV ± 0.21 eV,how would the lifetime be affected?
Definitions:
Operating Costs
Expenses associated with the day-to-day functioning of a business, such as rent, utilities, and payroll, excluding costs related to production.
Annual Cost
The total expenses associated with maintaining or operating something over the course of a year.
Useful Life
The estimated period over which a fixed asset is expected to be useful to the owning entity, crucial for calculating depreciation.
Machine
Equipment or devices designed to perform specific tasks, often used in manufacturing and production processes.
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