A Person Carries a 2

question 66

Multiple Choice

A person carries a 2.00-N pebble through the path shown in the figure, starting at point A and ending at point B. The total time from A to B is 6.75 min. How much work did gravity do on the rock between A and B?

• A)30.0 J
• B)-30.0 J
• C)-56.0 J
• D)56.0 J
• E)-36.0 J

Understand the process of balancing chemical equations for combustion.

Distinguish between complete and incomplete combustion.

Identify products of combustion under various conditions.

Understand the concepts of oxidation numbers in chemical compounds.

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A device or program that observes, keeps track of, or displays information, often used in computers or medical equipment.

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The physical components and devices that make up a computer or computer system.

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