A Radioactive Material Initially Is Observed to Have an Activity

question 1

Multiple Choice

A radioactive material initially is observed to have an activity of 1000 decays/sec.If nine hours later it is observed to have an activity of 125 decays/s,what is its half-life?

• A) 1/2 hour
• B) 8 hours
• C) 3 hours
• D) 1 hour

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Definitions:

Market Protection

Measures implemented by a government to shield domestic industries from foreign competition, often through tariffs, quotas, or subsidies.

Government Grants

Funds provided by the government to individuals or organizations for specific purposes without a requirement for repayment.

Average Cost

Average Cost refers to the total cost of production divided by the number of units produced, effectively calculating the cost per unit.

Entire Market

The total sales volume of all competitors within a particular industry or sector.