Homework Answers Page 10615

• How does the sun's diameter compare with the distance between the earth and the sun?

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  Science

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• Why is the human body considered an open system?

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  Psychology

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• Where did Mars get its name?

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  Science

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• Why is neutralization not a redox reaction?

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  Chemistry

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• What is the length of the shorter diagonal of the parallelogram if the lengths of the two adjacent sides of parallelogram ABCD are 8 and 14 units respectively and if the degree measure of the included angle is 60º?

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  Geometry

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• How many yards in a mile?

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  Algebra

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• Forty nickels is equal to how many dollars?

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  Algebra

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• How big is the sun compared to earth?

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  Science

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• How many moles of sodium hypobromite (NaBrO) must be added to a 2.00 L solution of 0.025 M hypobromous acid (HBrO) to form a buffer solution of pH 9.0 (Ka HBrO is 2.5x10-9)? Assume the volume of solution does not change on addition of NaBrO?

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  Chemistry

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• Who wrote the pamphlet "Common Sense" that urged independence from England?

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  History

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• Which is a more favorable reaction: an endothermic or an exothermic reaction?

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  Chemistry

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• What is sin 90 degrees + sin 135 degrees?

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  Geometry

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• How do you find ##lim (x+1)^(3/2)-x^(3/2)## as ##x->1^+##?

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  Calculus

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• What does it mean for an organism to be anaerobic?

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  Biology

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• How does natural selection affect allele frequency?

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  Biology

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• Why does the speed of earth's rotation not affect us?

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  Science

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• Who was Jiang Jieshi?

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  History

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• Are mitochondria found in animal cells?

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  Biology

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• How do you convert 0.16 (6 repeating) to a fraction?

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  Algebra

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• What is the name of the sugar molecule in the DNA helix?

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  Biology

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• What two things does gravitational potential energy depend on?

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  Physics

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• What are the basic properties of a 45-45-90 triangle?

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  Geometry

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• What is Charles' law formula?

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  Chemistry

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• Half an avocado has about 160 calories. How many calories do a dozen avocados have?

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  Algebra

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• What happened in Rutherford's gold foil experiment and what did he conclude?

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  Chemistry

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• What is the role of a catalyst in a chemical reaction?

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  Chemistry

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• How many miles is it from earth to Saturn?

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  Science

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• How to calculate mechanical advantage of a third-class lever?

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  Physics

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• What plants are in the freshwater biome?

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  Environmental Science

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• What are some owl puns?

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  English

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• What is the derivative of ##y=csc^2(x)##?

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  Calculus

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• How do you evaluate each expression for the given value of the variable? - 8 - 2/3h for w=6

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  Algebra

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• What is the vertex of ## y= x^2 -9 - 8x##?

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  Algebra

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• What is the empirical and molecular formula for nicotine?

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  Chemistry

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• What is the square root of 108 in simplest radical form?

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  Algebra

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• What is the Coriolis Effect?

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  Science

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• What is the symbiotic relationship between plants, animals, and bacteria?

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  Biology

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• What event started the Civil War?

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  History

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• Where does gas exchange in the respiratory system occur?

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  Psychology

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• An iron wrench (density = 7800 kg/m3) feels 3N lighter in water. (a) What is the mass of the wrench? (b) How would your answer change if it took a denser fluid to make the wrench feel 3N lighter?

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  Physics

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• How can you tell the difference between sp3, sp2, and sp hybridization?

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  Chemistry

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• What is the integral of ##sin(2x)cos^2(2x)dx##?

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  Calculus

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• Why did Jefferson consider the Embargo Act a form of "peaceable coercion"?

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  History

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• How many ounces are in a quart?

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  Algebra

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• Who was president during World War I?

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  History

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• What is the steric number of the central atom in the following species ? a) Carbon dioxide, CO2 b) Ammonia, NH3 c) Ammonium ion d) Formaldehyde

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  Chemistry

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• Are acid-base reactions always double displacement?

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  Chemistry

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• What does Hubble's Law state?

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  Science

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• Why did the pilgrims settle in the New England colonies?

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  History

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• A compound, ##XF_5##, is 42.81% fluorine by mass. What is the element ##X##? What is the molecular structure of ##XF_5##?

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  Chemistry

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