Strontinum-90 Has a Half Life of 29

question 68

Multiple Choice

Strontinum-90 has a half life of 29.1 years.The amount S of 100 kilograms of Strontinum6990 present after t years is given by How much of the 100 kilograms will remain after 50 years?

• A) about 31.4 kilograms
• B) about 35.4 kilograms
• C) about 30.4 kilograms
• D) about 37.4 kilograms
• E) about 40.4 kilograms

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Definitions:

Uniform Commercial Code

A comprehensive set of laws governing all commercial transactions in the United States, intended to standardize and simplify the law relating to business and commerce across states.

Commercial Paper

Short-term, unsecured promissory notes issued by companies to finance their operations, often with maturities of less than 270 days.

Sum Certain

A specific, fixed amount of money that is clear and unambiguous in a legal agreement or financial transaction.

Shares of Stock

Units of ownership in a corporation, representing a portion of the corporation's capital.