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When U(x) is infinitely large elsewhere,the wave function of a particle restricted to the region 0 < x < L where U(x) = 0,may have the form (x) =
Balance of Trade
The difference in value between a country's imports and exports over a certain period, indicating how much more goods and services a nation exports than it imports.
Services
Intangible products such as consulting, banking, cleaning, and education that are consumed at the point of sale.
Goods
Physical items that are produced and can be bought, sold, or traded.
Sweatshop Labor
Work that is performed in poor conditions for low pay and often violates labor laws.
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