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The electron in a hydrogen atom,originally in level n = 10,undergoes a transition to a lower level by emitting a photon of wavelength 1739 nm.What is the final level of the electron? (c = 3.00 × 108 m/s,h = 6.626 × 10-34 J·s,RH = 2.179 × 10-18 J)
Opportunity Cost
The cost of an alternative that must be foregone in order to pursue a certain action. Essentially, the benefits you could have received by taking an alternative action.
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An expression of the dollar's strength, usually compared against other currencies, which determines the buying power of the dollar in international markets.
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Trade Deficit
A scenario in which a nation's import expenses surpass the revenue generated from its exports.
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