Radioactive Decay: What Mass of ¹⁴C (Having a Half-Life of 5730

question 54

Multiple Choice

Radioactive decay: What mass of ¹⁴C (having a half-life of 5730 years) do you need to provide a decay rate of (1 u = 1.6605 × 10^-27 kg)

• A) 1.70 × 10^-12 kg
• B) 5.38 × 10^-19 kg
• C) 3.84 × 10^-20 kg
• D) 8.68 × 10^-13 kg

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Definitions:

Chain-Weighted Index

An economic measure that accounts for changes in both prices and quantities of goods and services over time, adjusting the weightings to better reflect reality.

Laspeyres Index

A price index used to measure the change in the cost of acquiring a fixed basket of goods and services of the same type and quantity over time.

Paasche Index

A price index that measures the cost of purchasing a given market basket of goods and services in a certain year, compared to the cost of purchasing the same goods and services in a base year, with the quantities used in weighting the prices coming from the year of interest rather than the base year.

Ideal Cost-Of-Living Index

A theoretical measure that tracks the changes in the amount required to maintain a constant standard of living over a period.