If a Certain Star Shows a Strong Absorption Spectrum in Hydrogen

question 1

Multiple Choice

If a certain star shows a strong absorption spectrum in hydrogen Balmer lines,the surface temperature of the star is hot enough that collisions between atoms there:

• A) ionize virtually all of the hydrogen atoms.
• B) promote electrons in many hydrogen atoms to the n = 2 energy level.
• C) promote electrons in many hydrogen atoms to the n = 3 energy level.
• D) convert many helium atoms to hydrogen atoms.

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Definitions:

Weighted Average Cost

A method of inventory valuation that calculates the cost of goods sold and ending inventory based on the average cost of all units available for sale.

Inventory Balance

The total value of a company's goods and materials held in stock, as recorded on the balance sheet.

Weighted Average Cost

A method of valuing inventory and cost of goods sold that considers the cost of each item in proportion to its quantity.

Perpetual Inventory

Perpetual inventory is a system that continuously updates inventory records to reflect sales, purchases, and inventory levels in real-time.