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An object has nine million more electrons than protons. What is the net charge of the object?
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A 150-W light bulb is turned on. It has an operating voltage of 120 V. (a) How much current flows through the bulb? A (b) What is the resistance of
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A current of 5.00 A flows in a conductor for 1.5 s. How much charge passes a given point in the conductor during this time?
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A flashlight uses batteries that add up to 4.5 V and has a power output of 0.62 W. (a) How much current is drawn from the batteries? A (b) What is
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What minimum mass of succimer in milligrams is needed to bind all of the lead in a patient's bloodstream?
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A horizontal pipe contains water at a pressure of 100 flowing with a speed of 1. The pipe narrows to one-half its original diameter.
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A solid cylindrical disk has a radius of 0. It is mounted to an axle that is perpendicular to the circular end of the disk at its center.
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A person who weighs 68kg steps onto a spring scale in the bathroom, and the spring compresses by 0.79 cm. (a) what is the spring constant?
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If a bottle of aspirin is left open to air, eventually one of the products is acetic acid (vinegar is a mixture of acetic acid and water).
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Your roommate says that the concept of homeostasis is being violated when the rate of respiration goes up during exercise, because the rate of...
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what are the different blood types and what makes them different
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When 11.0 g of zinc metal reacts with excess HCl, how many liters of H 2 gas are produced at STP?
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What are the different blood types and what makes them different?
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what is tetany? which mineral is associated with it?
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What are the blood types and which ones are the universal donors
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what is the understanding of death from the media point of view?
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0 mL sample of 0.40 M benzoic acid, C6H5COOH, a weak monoprotic acid, is titrated with 0.48 M NaOH. Calculate the pH at the equivalence point. Ka of...
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A student wants to make a pH 4.0 buffer solution. She decides to use a buffer made from formic acid and sodium formate (NaCOOH). She adds 50.0 grams...
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quot;I have a granite tile/paver in a dark grey colour. The air temp is 30 degrees celcius. The soil temp the paver sits on is 17 degrees. The paver...
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Using K=3.9 as the equilibrium constant, Keq, calculate the amount of isoamyl acetate that should be present at equilibrium.5 ml of isoamyl alcohol,...
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The substance codeine is a weak nitrogenous base like ammonia. Write a net ionic equation to show how codeine, C18H21O3N, behaves as a base in water....
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q20)When a compound A (C5H12O) is treated with HBr, it forms compound B (C5H11Br).
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Draw the structure of: Propylene oxide is a chiral molecule. Hydrolysis of propylene oxide under acidic or basic conditions gives propylene glycol,...
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what are the factors that affect purity of sythsised substances
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Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.1010^6 \rm N, one at an angle 19.0^\circ west of north, and the other...
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Translate chemical equation into words CH4(g) + 2O2 (g) produces CO2 (g) + 2H2O (g)
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calculate the expected change in temperature for 4.5 g of NH4NO3 dissolved in 100.0 mL of H20. Assume that the calorimeter absorbs no heat.
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Richard is a 50-year-old male with nasal congestion, sneezing, rhinorrhea, and postnasal drainage. Richard has struggled with an itchy nose, eyes,...
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Three electrons form an equilateral triangle .9 nm on each side. A proton is at the center of the triangle. What is the potential energy of this
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A 350.0 mL sample of oxygen gas was collected over water at a temperature of 25.0C and 740.0 mm Hg. How many moles of gas were there in this sample...
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In the figure, a conducting rod with length = 25.0 moves in a magnetic field of magnitude 0.440 directed into the plane of the figure. The rod moves...
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When an unstable patient asks why it is necessary to add medications to his current regimen, the PMHNP's best response would be:
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Read the following questions and briefly describe your thoughts on the answer and how you come to that answer.
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You are trying to decipher the genetics of the Sparky and Satan phenotypes. One theory is that Sparky is due a single sex-linked gene.
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An automobile has a wavelength that is not measurable by human standards. If the car has a mass of 4000 lbs (1.81 x 103 kg) and travels at 60...
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I am looking for Chemical Engineering Tutor, good payments, for 2 courses; 1.Chemical Process amp; Refinery Design 2.Physical Separation Processes I...
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After completing this assignment you will be able to: Understand the effect vaccinations have on the lymphatic and immune systems Understand the
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AgNO3 (aq) + PbBr2 (s) yields AgBr (s) + Pb(NO3)2 (aq)
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what is the advantage of timing for a full minute to find your pulse rate
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A shop sign weighing 215 N is supported by a uniform 135 N beam as shown in Fig. 9-59. Find the tension in the guy wire.
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Chromosomes and genes share all of the following characteristics except that Possible Answers A. they both undergo segregation during meiosis.
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16. Valnoctamide, the molecule shown below, is a tranquilizer and anticonvulsive. What is its IUPAC name? 17. Which structural isomer has the highest...
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Provide a mechanism for each of the following reactions and the stereochemistry expected for the product. In each case, only one stereoisomer is...
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Write an essay about how you have been prepared by your master's program to: Apply legal, ethical and human-caring principles to situations in...
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Articles to refer to for questions: http://blogs.dnalc.org/category/sitetopics/insidecancer/ http://www.nytimes.com/2007/03/18/health/18huntington.
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The following equation is not balanced: Na3PO4+MgCl2Mg3(PO4)2+NaCl Notice that quot;PO4quot; appears in two different places in this chemical...
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Chlorine dioxide, ClO2, is a reddish yellow gas used in bleaching paper pulp. The average speed of a ClO2 molecule at 25 degrees Celsius is 306 m/s.
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Which of these can dissolve a blood clot?Which of these can dissolve a blood clot?
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Calculate the radius of a vanadium atom, given that V has a BCC crystal structure, a density of 5.96 g/cm3, and an atomic weight of 50.9 g/mol. Use...
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Find an article or interview of a person with a disease that affects the nervous system or sensory reception.
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