Homework Answers Page 10743

• What is the difference between rock, mineral, ore and metal?

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  Science

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• How do you convert 1.47 km/h to mm/s?

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  Algebra

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• How could IR spectroscopy be used to distinguish between benzene and cyclohexene?

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  Chemistry

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• Where is your stomach located?

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  Psychology

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• What does the first law of reflection state?

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  Physics

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• An object is traveling around a circle with a radius of 2 meters. If in 20 seconds the object travels 5 meters, what is its angular speed? What is its linear speed?

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  Physics

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• Why did California's application for statehood cause a sectional crisis?

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  History

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• What is the frequency in hertz of blue light having a wavelength of 425 nm?

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  Physics

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• Use the standard normal tables to find ##P(z gt -1.22)##.

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  Statistics

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• What is a mutation? How does it increase variation?

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  Biology

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• How do stop codons affect translation?

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  Biology

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• What are examples of pun lines in "The Taming of the Shrew"?

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  English

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• How would you balance: Na + H2O --> NaOH + H2?

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  Chemistry

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• What elements make up lipids?

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  Chemistry

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• What is the charge on a carbonate ion ##(CO_3)####2-##?Compared to the number of protons, how many electrons does the carbonate ion have?

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  Chemistry

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• What happens to ATP when one phosphate group is removed? What new molecule is created when this happens? Which molecule has more energy?

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  Biology

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• For the reaction: 4 NO2 (g) + O2 (g) 2 N2O5 (g) a) What is the rate of formation of N2O5 in terms of the rate of disappearance of O2? b) If the rate of disappearance of O2 = 0.0037 mol L-1s-1 what is the rate of disappearance of NO2?

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  Chemistry

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• How does matter change from solid to liquid?

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  Chemistry

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• How do tube feet help echinoderms move?

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  Biology

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• What is the empirical formula of cellulose?

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  Chemistry

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• What is the ionic compound for Ca3(PO4)2?

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  Chemistry

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• The charge of the metal in the compound MgSO4 is?

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  Chemistry

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• The center of a circle is at (4, -1) and it has a radius of 6. What is the equation of the circle?

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  Precalculus

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• How are monocot and dicot flowers different?

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  Biology

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• How far is mars from earth?

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  Science

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• What role did Victor Emmanuel II play in Italian Unification?

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  History

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• If 1 inch is 2.54 cm, how many cm are there in 12 inches?

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  Algebra

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• How and where is the appendix connected to the intestines?

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  Psychology

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• How much does 1 gallon of water weigh in lbs? Given Density of water 1 g/cm

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  Chemistry

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• What is the difference between an intrinsic and extrinsic semi conductor material? What is doping?

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  Chemistry

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• What element has the symbol Rn?

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  Chemistry

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• If y varies directly as x and inversely as the square of z and if ##y=20##  when ##x=50## and ##z=5## how do you find y when ##x=3## and ##z=6##?  

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  Algebra

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• Why is the force = mass * acceleration rather than mass * velocity? Isn't the force exerted at a given moment rather than over a period of time, which is expressed through acceleration?

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  Physics

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• What is the relationship between D-glucose and D-fructose?

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  Chemistry

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• What is the formula for the conjugate of H2C2O4?

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  Chemistry

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• How many dependent variables should be in an experiment?

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  Chemistry

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• What is pi factorial (or pi!)?

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  Precalculus

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• What is the function of the renal artery and the renal vein?

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  Psychology

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• What are the three main functions of the lymphatic system?

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  Psychology

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• A sample of steel with a density of 7.81 g/ml is added to a 100-mL graduated cylinder with 45.0mL of water. If the resulting water level is 55.5 mL, what is the mass of the sample of steel?

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  Chemistry

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• What's the difference between a formula unit and a molecule?

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  Chemistry

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• The angles of a triangle are in the ratio 3:4:5. What is the measure of the smallest angle?

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  Algebra

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• How do you translate "the quotient of a number N and 4" into an algebraic expression?

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  Algebra

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• How do you find the exact value of cos 180degrees - sin 180degrees?

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  Geometry

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• Mars has an average surface temperature of about 200K. Pluto has an average surface temperature of about 40K. Which planet emits more energy per square meter of surface area per second? By a factor of how much?

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  Science

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• What treaty brought an end to Queen Anne’s War?

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  History

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• How does price level affect money demand?

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  Economics

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• Which of the following is a correct statement of the Second Law of Thermodynamics?

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  Physics

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• How do hox genes influence animal development?

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  Biology

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• How do I find the number of grams in 1 mole of sulfuric acid. Then calculate the number of grams of sulfuric acid needed to make a 1-L solution of sulfuric acid in water that has a molarity of 3?

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  Chemistry

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