How Many ¹⁴C Atoms Are in a Charcoal Sample That

question 42

Multiple Choice

How many ¹⁴C atoms are in a charcoal sample that has a decay rate of 3,500 disintegrations per min? (For ¹⁴C, t_1/2 = 5,730 yr.)

• A) 2.9 * 10⁷ atoms
• B) 8.0 * 10^-7 atoms
• C) 1.4 * 10¹⁴ atoms
• D) 1.5 * 10¹³ atoms
• E) 6.02 * 10²⁰ atoms

Understand the cognitive biases and their effects on perception and decision-making.

Recognize the organization of memory about people by specific categorizations.

Understand the distinction between memory-based judgments and on-line impression formation.

Explore the effects of affect and emotion on social cognition and memory.

---

Definitions:

Income from Operations

The profit realized from a business's ongoing operations, calculating the difference between revenues from operations and operational expenses.

Adjusting Entry

Journal entries made in accounting records at the end of an accounting period to update the balances of accounts.

Closing Entries

These are journal entries made at the end of an accounting period to transfer the balances of temporary accounts to permanent accounts.

Inventory

The complete quantity of products and materials a company possesses for the purposes of sale or utilization in manufacturing processes.