Homework Answers Page 10068

• How can potential energy be increased and decreased?

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  Physics

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• How many galaxies are there in the universe?

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  Science

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• What is the difference between simple and compound machines?

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  Physics

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• How do you find (f o g)(x) and its domain, (g o f)(x) and its domain, (f o g)(-2) and (g o f)(-2) of the following problem ##f(x) = x^2 – 1##, ##g(x) = x + 1##?

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  Precalculus

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• An irregularly shaped stone was lowered into a gradulated cylinder holding a volume of water equal to 2.0mL.the height of the water rose to 7.0mL if the mass of the stone was 25 what was it's density?(find the difference in the height of the water)

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  Chemistry

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• What is the structure and function of the cytoskeleton in a cell?

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  Biology

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• What is a polynomial function for 5, i, -i?

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  Precalculus

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• What are the customary units of solubility on solubility curves?

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  Chemistry

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• How did the trial of John Peter Zenger become important to the colonists?

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  History

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• What is the meaning of constant of proportionality in physics?

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  Physics

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• How can an object have a negative acceleration while speeding up and a positive acceleration while slowing down? Please explain using easy terms, I do not understand the way my textbook explains it.

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  Physics

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• What are some examples of an elastic collision?

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  Physics

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• Does charging by induction or conduction occur during a thunderstorm?

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  Physics

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• What is the hybridization of ##CH3^-##?

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  Chemistry

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• What is the exact value of sin 60 degrees?

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  Precalculus

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• Are SN1 reactions faster than SN2?

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  Chemistry

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• Which lengths represent the lengths of the sides of a scalene triangle: 3, 4, 5; 4, 4, 5; 12, 7, 7; 15, 15, 15?

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  Algebra

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• How do you find the integral of ##x^3 * sin( x^2 ) dx##?

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  Calculus

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• How do you simplify Square root of 63 - Square root of 28?

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  Algebra

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• The angular momentum quantum number of an electron in a d orbital is equal to?

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  Chemistry

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• A solution of silver nitrate (AgNO3 ) is added to a solution of sodium hydroxide (NaOH). In the precipitation reaction that occurs, which ions will be spectator ions?

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  Chemistry

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• How did life begin according to science?

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  Science

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• How do you find the third degree Taylor polynomial for ##f(x)= ln x##, centered at a=2?

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  Calculus

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• What is an integrated rate law?

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  Chemistry

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• What is the difference between a pulsar and a quasar?

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  Science

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• What is an echinoderm?

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  Biology

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• What is the difference between a trapezoid and a rhombus?

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  Geometry

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• Why do exothermic reactions release heat?

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  Chemistry

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• The compound copper(II) bromide is a strong electrolyte. What is the reaction when solid copper(II) bromide is put into water?

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  Chemistry

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• How many miles per hour is 25.4 feet per second?

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  Physics

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• What are some examples of osmosis in real life?

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  Biology

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• What is the excited state of carbon?

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  Chemistry

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• What was the purpose of the Foraker Act?

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  History

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• Why is dilation not an isometry?

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  Geometry

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• Why was Thomas Jefferson chosen to write the Declaration of Independence?

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  History

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• What are covalent bonds?

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  Chemistry

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• What is the process of axonal conduction?

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  Psychology

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• Approximately how many marbles could fit into a hollow sphere the radius of the Earth?

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  Geometry

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• What is the difference between a Tangent line and a secant line on a curve?

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  Calculus

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• What does the zero factor property mean?

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  Precalculus

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• How does Bronsted-Lowry define acids and bases?

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  Chemistry

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• What purpose did the gulags serve in Russia?

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  History

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• What is electron affinity?

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  Physics

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• A steel wire in a piano has a length of 0.7 m and a mass of 0.0043 kg. To what tension must this wire be stretched so that the fundamental vibration with frequency of 261.6 Hz?

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  Physics

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• The tallest man ever recorded was Robert Wadlow, who was 272 cm tall. The tallest woman on record was Zeng Jinlian. Her height was 91% of Wadlow's height. How tall was Zeng Jinlian?

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  Algebra

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• There are approximately 7.5 gallons of water in 1 cubic foot. If a spherical water tank has a diameter of 24 feet, about how many gallons of water will it hold?

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  Geometry

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• What medium does sound travel through best?

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  Physics

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• Consider the reaction: K2S(aq)+Co(NO3)2(aq)→ 2KNO3(aq)+CoS(s) What volume of 0.255 M K2S solution is required to completely react with 170 mL of 0.110 M Co(NO3)2? Thank you!

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  Chemistry

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• Magnesium reacts with nitrogen to form magnesium nitride. The chemical formula for this reaction is ##Mg+N_2-> MgN_2##. What is the product, or what are the products, of this reaction?

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  Chemistry

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• How do you solve a percent change equation?

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  Algebra

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