The Space Shuttle Uses Liquid Hydrogen and Liquid Oxygen to Produce

question 36

Multiple Choice

The space shuttle uses liquid hydrogen and liquid oxygen to produce thrust for liftoff in the following reaction. If the liquid oxygen supply is set to provide 420 kg/s during a launch, what does the rate of liquid hydrogen supply need to be in kilograms per second? 2H₂(l) + O₂( )  2H₂O(g)

• A) 840 kg/s
• B) 210 kg/s
• C) 106 kg/s
• D) 52.9 kg/s
• E) 63.4 kg/s

---

Definitions:

Profit Centers

Parts of an organization that directly add to its profit through their activities, treated as separate entities for financial management purposes.

Divisional Income Statements

Financial statements that show the revenue, expenses, and profit for each division or segment of a company separately.

Income from Operations

The profit generated from the core business activities of a company, excluding revenues and expenses from non-operational activities like financing or investments.

Payroll Cost

Expenses associated with compensating employees, including wages, salaries, and benefits.