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sound

(Encyclopedia) CE5 Sound waves: An air pressure wave radiating outward from a loudspeaker is perceived as sound. sound, any disturbance that travels through an elastic medium such as air, ground…

Chemistry: Adding Variety to Our Menu

Adding Variety to Our MenuChemistryChemical EquationsLet's Make Chili!Getting Our IngredientsHow Much of Each Ingredient Do We Need?Writing Complete EquationsAdding Variety to Our MenuPredicting…

Writing Well: Write This Way

Write This WayWriting WellIn the Hot Seat: Writing Under PressureWhat's the Big Idea?Write This WayThe Golden RulesWhen the Meter's RunningPanic in the Streets Here's an excellent essay written…

Sentences: I Know It When I See It: The Sentence

I Know It When I See It: The SentenceSentencesIntroductionI Know It When I See It: The SentenceSentence Structure: The Fab FourSentence Functions: The Four TopsAlley Oops Sentence: Stop! Sentence…

How to Use The Columbia Encyclopedia

The Columbia Encyclopedia is easy to use. All articles are arranged alphabetically with each article heading in boldface type. The headings of biographical articles are inverted and alphabetized by…

vector

(Encyclopedia) vector, quantity having both magnitude and direction; it may be represented by a directed line segment. Many physical quantities are vectors, e.g., force, velocity, and momentum. Thus…

Sentences: Sentence Functions: The Four Tops

Sentence Functions: The Four TopsSentencesIntroductionI Know It When I See It: The SentenceSentence Structure: The Fab FourSentence Functions: The Four TopsAlley Oops In addition to classifying…

Chemistry: What Are Covalent Compounds?

What Are Covalent Compounds?ChemistryGetting to Know Covalent CompoundsWhat Are Covalent Compounds?Formation of Multiple Covalent BondsProperties of Covalent CompoundsWhat's in a Name? Covalent…

Chemistry: Equilibrium Constants

Equilibrium ConstantsChemistrySolution Chemistry/emical EquilibriaWhat Is an Equilibrium?Equilibrium ConstantsHeterogeneous EquilibriaDisturbing Equilibria: Le Chtelier's Principle All equilibria…