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1. Which of the following substances does not have polar covalent bonds?
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Earthquakes produce two kinds of seismic waves: he longitudinal primary waves (called P waves) and the transverse secondary waves (called S waves).
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A transverse sinusoidal wave on a string has a period T = 39.0 ms and travels in the negative x direction with a speed of 30.0 m/s.
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A bucket filled with dirt of mass 18 kg is suspended by a rope that hangs over a pulley of mass 31 kg and radius 0.15 m (figure below).
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Give a brief description of the following processes that are involved in the metallurgy of transition elements a)pyrometallurgy b)Hydrometallurgy
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A car battery has an emf of 11.8 V and an internal resistance of r = 0.61 Ohms. The battery is connected to the headlights R1 with a resistance of R1...
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50 multiplied by 103 kg car starts from rest and accelerates uniformly to 18.5 m/s in 13. Assume that air resistance remains constant at 400 N during...
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The beam has a mass m2 = 108 kg and length L = 5 m.
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I went through the chapter a couple of times and can't seem to grasp the concept of being able to predict the products of some reactions and not...
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The two concentric circular loops of equal radii cm carry currents and respectively. Loop one is in the vertical plane, current I1 is clockwise.
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(4)12. Four independently isolated mutants of yeast all of which are unable to grow in the absence of arginine (arg-) were isolated. Each mutant was...
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Polypropylene (pp) and heat: A wifi laptop is placed on a metal stand that sits on a polypropylene (pp) utility cart (rated 0-200 degrees F). The...
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If you were to prepare a 1.00 m solution of {\rm CaCl_2} beginning with water at 22.5^\circ {\rm C}, what would the final temperature of the solution...
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An electron is placed in a uniform electric field with a magnitude of 12V/m which is at a direction of 35 degree a. What is it's final speed after
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After an elastic collision of two balls, the kinetic energies of the two balls are measured to be 12 J and 24 J. What can be said about the kinetic
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Calculate the circular speed of an object that orbits the Sun at a distance of 5.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the...
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After falling from rest from a height of 29 m, a 0.47 kg ball rebounds upward, reaching a height of 19 m. If the contact between ball and ground...
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of flask + Product 109.12g Wt. of Flask 91.69g wt. of product 17.43 g Volume of water collected 4.60g 19.0 mL of n-propanol (0.25 mol) 18.5 mL of...
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Discuss some adaptations other than size that are used by organisms to increase their resistance to sinking.
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1\ How the use of the following computerized applications could help the clinic to lower the costs of preventive care assessment while improving its
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A horizontal force of 18.4 N is required to hold the mass at rest when it is pulled 0.
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What is the angular separation of two spectral lines of wavelengths 417 nm and 388 nm formed in order m = 2 with a 456 line/mm grating?
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A car parked in the sun absorbs energy at a rate of 550 watts per square meter of surface area. The car reaches a temperature at which it radiates...
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Which of the following statements is true regarding biomes in the United States?
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solve the ff 1. the lighter fluid butane burns according to the equation: C4H10(GAS) + O2 (G) -CO2 (G) + H20(G) (unbalanced) a). calculate the mole...
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A mass is suspended vertically from a spring so it is at rest at the equilibrium position.
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Please complete the following discussion questions. To do this, click the create message button formulate your post as a response and then submit.
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"Three equal point charges, each with charge 1.45 x 10^-6 C , are placed at the vertices of an equilateral triangle whose sides are of length 0.650 m...
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Two packing crates of masses m1 = 10.0 kg and m2 = 3.00 kg are connected by a light string that passes over a frictionless pulley. The 3.00 kg crate...
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Question (part 1 of 2) Three equal charge; 3 #0 are located in the ivy-plane, one at (0 In, 51 m), another at (46 In, 0 m), and the third at (32 In,...
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Question ( part 1 of 4 ) I' wo charges are located in the ( 2 , 7 ) plane* as shown . The fields produced by these* charges are observed at a point p...
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A superconducting ring of radius R has a permanent conventional current I in the direction shown in the figure below and is oriented with its axis...
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If the concentration of glucose in the water outside of the cell is higher than the concentration inside- does water leave the cell causing it to...
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a force of 20N is required to move an object of mass 5kg at a constant speed of 10 m/s. how much work was done to move an object 50 m? what is
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The total energy of the system is 3. Find the amplitude of the motion.
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A conducting sphere of radius a carries a charge 3q (where q 0). The sphere is surrounded by a concentric conducting spherical shell of inner...
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Why do bacteria perform the emden-Meyerhof pathway, need the pentose- phosphate pathway?
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Consider a spacecraft in an elliptical orbit around the Sun with a semi-major axis of 0.5AU and an orbital eccentricity of 0. Describe what will...
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Pounding a nail into wood makes the nail warmner. Consider a 4 gram steel nail 9 cm long, and a hammer that exerts an average force of 500 N on it...
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Stewie is making a 2 M plutonium chloride solution in a 100 mL volumetric flask (for no particular reason). The dilution is quite endothermic.
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A 66-year-old woman presents to your office complaining of shortness of breath and bilateral leg edema that have been worsening for 3 months.
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A child slides down a slide with a 22 incline, and at the bottom her speed is precisely three-fifths what it would have been if the slide had been...
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On December 31, 2011, Hurston Inc. borrowed $3,960,000 at 13% payable annually to finance the construction of a new building.
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A ball is projected straight up from the ground with initial speed v0=200m/s and when it falls back it hits the ground with speed v1=50m/s. The mass...
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Leadership Portfolio 2 (LP 2) Grading Rubric Unsatisfactory: 0-60% Effective Leader Definition Assessment Results Section not complete Needs...
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A 400 nm thick film of kerosene (n = 1.2) is floating on water. White light is normally incident on the film.
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In a particular species of guppy, tails can either be long or short and either feathered or straight.
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Part 1) A ladder rests against a vertical wall. There is no friction between the wall and the ladder. The coefficient of static friction between the...
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A rectangular block of ice 12 m on each side and 1.2 m thick floats in sea water. The density of the sea water is 1025 kg/m3. The density of ice is...
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A weather balloon is inflated to a volume of 26.8L at a pressure of 749mmHg and a temperature of 24.
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