Questions Asked on
April 28, 2011

  1. Chemistry

    The molar solubility of Pb(IO3)2 in a 0.10 M NaIO3 solution is 2.4 10-11 mol/L. What is Ksp for Pb(IO3)2?

    asked by Steve
  2. Chemistry

    A zinc-copper battery is constructed as follows at 25°C. Zn|Zn^2+ (0.15 M)||Cu2+(3.00 M)|Cu The mass of each electrode is 200. g. a) Calculate the cell potential when this battery is first connected. - i got this to be 1.14V b.) Calculate the cell

    asked by Pamela
  3. Chemistry

    2. what solution can you add to each of the following cation mixtures to precipitate one cation while keeping the other cation in sloution? write complete and net ionic equations for thr precipitation reactons that occur. a) sr+2 (aq) anf Hg+2 (aq) b) ca+2

    asked by Alexandria
  4. Triggggggg

    A ship is 90 miles south and 20 miles east of port. The captain wants to travel directly to port. What bearing should be taken?

    asked by Jill
  5. physics

    The physics of electric field between two charges. What is the magnitude and direction of the electric field at a point midway between a -8.0 ìC charge and a +6.0 ìC charge? The -8.0 ìC charge is 4.0 cm to the left of the +6.0 ìC charge. If a charge of

    asked by aly
  6. chemistry

    calculate the volume(ml) of a 0.215M KOH solution that will completely neutralize each of the following? a) 2.50ml of a 0.825M H2SO4 solution b) 18.5ml of a 0.560 M HNO3 solution c) 5.00mL of a 3.18 M H2SO4 solution

    asked by Connie
  7. Chemistry

    H2 + F2--> 2HF deltaH = 518.0 kJ H2 ----> 2H deltaH = 436.8 kJ F2 ---> 2F deltaH = 158.2 kJ (a) calculate Delta H for H + !@#$%^&> HF (b) what is the standard enthalpy change of formation of F2 Help please!!! i think this is easier than i'm making it. for

    asked by jessica
  8. physics

    When a yellow light shines on a photosensitive metal, photoelectrons are emitted. As the intensity of the light is decreased, the number of photoelectrons emitted per second

    asked by ashley --
  9. Chemistry

    Any one there who would help me with my pr0blem!Please help me,tnx! What is the mass of carbon dioxide if 100 grams of methane is oxidized to carbon dioxide and water?

    asked by joy
  10. Chemistry

    What is the mass of carbon dioxide if 100 grams of methane is oxidized to carbon dioxide and water?

    asked by joy
  11. physics

    The physics of electric potential energy at one corner of a triangle. Two charges, q1 = +5.0 ìC and q2 = -2.0 ìC are 0.50 m apart. A third charge, q3 = +6.0 ìC is brought from infinity to a spot 0.50 m from both charges so that the three charges form an

    asked by aly
  12. Algebra 2 review

    Bob and Latoya both drove to a baseball game at a college stadium. Bob lives 70 miles from the stadium and latoya lives 60 miles from it. Bob drove at a rate of 50 miles/hour and Latoya drove at a rate of 40miles/hour. If they both left home at the same

    asked by Beth
  13. Math

    Im having trouble getting the correct answer to this question. Could someone help out. Monthly sales of a particular personal computer are expected to decline at the following rate of S'(t) computers per month, where t is time in months and S(t) is the

    asked by Anonymous
  14. Physics ~ missed this lecture pls help!

    The index of refraction of a transparent liquid (similar to water but with a different index of refraction) is 1.39. A flashlight held under the transparent liquid shines out of the transparent liquid in a swimming pool. This beam of light exiting the

    asked by cr
  15. CHEM

    draw the structural formula for 1,3,5-trichlorocyclohexane

    asked by Star
  16. pre calc

    the longest side of a triangle is 34 feet. the measures of two angles of the triangle are 40 and 65 degrees. find the lengths of the other two sides using law of sines and cosines

    asked by g
  17. Physics ~ Please help

    The index of refraction of a transparent liquid (similar to water but with a different index of refraction) is 1.39. A flashlight held under the transparent liquid shines out of the transparent liquid in a swimming pool. This beam of light exiting the

    asked by cr
  18. Physics

    The generator at a power plant produces AC at 24,000 V. A transformer steps this up to 345,000 V for transmission over power lines. If there are 2,000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?

    asked by Mateo
  19. chemistry

    (AAAAA)The standard reduction potentials of lithium metal and chlorine gas are as follows: (for Li, reduction potential is -3.04, for Cl it is 1.36) In a galvanic cell, the two half-reactions combine to 2Li{+](s) + Cl{-}2(g) --> 2Li{+}Cl{-}(aq) Calculate

    asked by lili
  20. european history

    i have to write a DBQ on the different views within France of the Vichy government from 1940 to 1944. I wrote the introductory paragraph, with the last sentence as my thesis. Does it look all right? Germany defeated French troops in May 1940 and drove its

    asked by Kris
  21. Physical Science

    The soup in a bowl is too hot to eat. Although there are no ice cubes in the freezer, there are several stainless steel spoons that have been stored in the freezer for several hours. By placing the cold spoons in the hot soup, the soup's temperature is

    asked by Anon
  22. physics

    a wheel turning with angular speed of 30 rps is brought to rest with constant acceleration. It turns 60 revolutions before it stops.

    asked by sarah
  23. Metis of the Red River

    How were the Metis of the red river self-sufficient? They do farming. Grow vegetables, and all that food. Please help?

    asked by Anonymous
  24. English - Macbeth

    Think about Macbeth’s position at the conclusion of Act III. In what ways has his ambition, which allowed him to obtain the Scottish throne in the first place, begun to be detrimental to him? Cite specific examples from the play in your response. What

    asked by Kate
  25. physics

    When the pendulum bob reaches the mean position, the net force acting on it is zero. Why then does it swing past the mean position?

    asked by ashley --
  26. ENGLISH

    The Crucible by Arther Miller 1-Which of the following significant events occurs after the play begins? a. A group of girls dances in the forest. b. Giles sues Proctor for defamation of character. c. Abigail accuses Goody Osburn of witchcraft. d. Ruth

    asked by Anonymous
  27. chemistry

    how many grams of glucose C6H12O6 would you need to make 250 mL of 1.0 M solution?

    asked by amber
  28. Trig

    A silo is 40 feet high and 16 feet across. find the angle of depression from the top edge to floor. How do you solve this?

    asked by Jen
  29. chemistry

    what is the molarity of a solution containing 23g of NaCl in 500 mL of solution? (the molecular mass of NaCl is 58.44.)

    asked by lilly
  30. math

    An 11 ounce bag of chips costs $1.99 what is the cost per ounce rounded to the nearest cent? What is the cost per pound rounded to the nearest cent

    asked by joe
  31. physics ( help)

    The active element of a certain laser is made of a glass rod 30cm long and 1.5cm in diameter. The average coefficient of linear expansion of glass is 9 x 10^-6°C-1. If the temperature of the rod increases by 65°C, what is the increase in its volume?

    asked by UnKnown
  32. College chemistry

    A buffer that consists of a mixture of NaH2PO4 and K2HPO4 has a pH of 6.73. The (HPO4)/(H2PO4) ratio in this buffer is what? If (k1,k2,and k3 for H3PO4 are 7.1x10^-3, 6.2x10^-8, and 4.5x10^-13 respectively)

    asked by Anonymous
  33. math

    what is the surface area of a rectangular prism with the width 4cm lenth 5cm height of 3cm

    asked by dianalish`
  34. Art 101

    Briefly describe the works of art and the artists to discuss, Where is/are the works located? What time period is the art from? Writing about Apollo and sculptor Vulca.

    asked by Carolyn
  35. physics

    A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. When sleeping, the average adult burns or expends about 0.45 Cal/h for every pound of body weight. How many Calories would a 196 lb person burn during 7 hours of sleep? (Note

    asked by gabby
  36. PHYSICS

    You are driving a car down a straight road at a constant 48 miles per hour. Consider the following forces: I) air drag pushing back on the car; II) gravity pulling down on the car; III) the ground pushing up on the car; IV) friction pushing the wheels (and

    asked by Diana
  37. CHEM

    Trying to figure out how to draw the structure 2-bromo-4-phenylpentane I thought it was a five carbon strong with the ring on the second C and a Br on the 4th - but that's not correct (or not completely correct) What am I doing wrong?

    asked by Star
  38. chemistry

    how many moles of sucrose C12H22O11 does 300mL of a 0.10 M sucrose solution contain?

    asked by amber
  39. geometry

    The lateral area of a prism is 144cm^2 (lateral area is surface area without the bases). If the height is double the width, and the length is triple the width, what is the surface area? I got the answer wrong; its supposed to be 196. Can anyone explain how

    asked by Anonymous
  40. CHEMISTRY HELP!!

    Formic acid (HCHO2) is a component of bee stings. It is a weak acid and dissociates according to the equilibrium shown below: HCHO2 H+ + CHO2- Kc = 1.8 x 10-4 For a 0.5 M solution of formic acid, we wish to determine the equilibrium concentration of H+.

    asked by carlo
  41. physics

    Meteorites from Mars Several meteorites found in Antarctica are believed to have come from Mars, including the famous ALH84001 meteorite that some believe contains fossils of ancient life on Mars. Meteorites from Mars are thought to get to Earth by being

    asked by Randy
  42. Trig

    A silo is 40 feet high and 16 feet across. find the angle of depression from the top edge to floor. How do you solve this?

    asked by Jen
  43. geometry

    Two triangles are similar, and the ratio of each pair of corresponding sides is 7:3. What is the ratio of the perimeters? What is the ratio of the areas?

    asked by Conor
  44. math help me!

    on he teachers baseball team, they are measuring to put the bases down. ms.accardo wants it like a professiona; field. On a professional baseball field, the distance from one base to the next is 90 ft.what is the distance between home plate and second

    asked by lammy
  45. math

    which is greater 1.8 or 1.08

    asked by Tristan
  46. chemistry

    in the chemical equation :2C2H6+7O2->4CO2+6H2O, hOW many moles of c2h6 will you need to form 2.34 mol of co2? How many moles of water will be produced?

    asked by kelly
  47. Chemistry

    a solution contains an unkown amount of dissolved magnesium, addition odf 0.0877 mol of Na2CO3 causes complete precipitation of all the magnesium. what is the mass of magnesium was dissovled in the solution? you must write a balanced equation for the

    asked by Monika
  48. Physics

    A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Which statement is true? 1. The dragster rounded the curve at a changing velocity of 100 km/h. 2. The dragster moved along a straight line at a

    asked by Leslie
  49. Geometry

    Why is the apothem of an equilateral triangle one third its height?

    asked by Liana
  50. chemistry

    What is the mole fraction of sulfuric acid in a solution made by adding 3.4 grams of sulfuric acid to 3500 mL of water?

    asked by amber
  51. physics

    What is the frequency of the EM wave emitted most strongly by a glowing element on a stove with temperature 1,500 K

    asked by Mateo
  52. physics

    Which of the following confirms the wave nature of particles? a. Photoelectric effect b. Rutherford's alpha scattering experiment c. de Broglie waves d. Young's double slit experiment

    asked by ashley --
  53. Physics

    A spaceship of mass m is located between two planets of masses M1 and M2; the distance between the two planets is L. Assume that L is much larger that the radius of either planet. What is the position of the spacecraft (given as a function of L, M1, and

    asked by Fernando
  54. physics

    The physics of moving a small charge through a potential difference. How much work is needed to move a -8.0 ìC charge from ground to a point whose potential is +75 V?

    asked by aly
  55. physics

    The physics of an electron falling through a potential difference. How much kinetic energy will an electron gain (joules) if it falls through a potential difference of 350 V?

    asked by aly
  56. physics

    The physics of an electron moving from one plate to another. An electron acquires 4.2 x 10-16 J of kinetic energy when it is accelerated by an electric field from Plate A to Plate B. What is the potential difference between the plates, and which plate is

    asked by aly
  57. chemistry 101

    if you had 14 moles of octane how many moles of carbon dioxide would you get?

    asked by sylvia
  58. Chemistry

    How many liters of air (78 percent N2, 22 percent O2 by volume) at 20 degrees Celsius and 1.00 atm are needed for the complete combustion of 1.0 L of octane, C8H18, a typical gasoline component that has a density of 0.70 g/mL?

    asked by Star
  59. Chemistry

    a sample of limestone and other solid materials is heated and the limestone decomposes to give calcium oxide and carbon dioxide: CaCO3 ----> CaO + CO2 a 1.506 g sample of limestone containing material produces 284 mL of CO2 at STP. what is the mass percent

    asked by Ben
  60. Physics (please check!!!)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Earth when the two forces are in direct competition, that is, when the Sun, Moon and Earth are aligned with the Moon between the Sun and the Earth. This

    asked by Bon Oncle
  61. Human Growth & Development

    How might crystallized & fluid Intelligence help middle-aged people deal with novel situations & prblems?

    asked by Elicia
  62. chemistry

    0.5 L of a 0.30 M HCl solution is titrated with a solution of 0.6 M KOH. a)What is the pH before addition of KOH? b)What is the total number of moles of acid? c)What is the pH after addition of 125 mL of KOH solution? d)What volume of the KOH solution is

    asked by Joe
  63. Math

    Could someone answer this question so I understand it. Thanks The marginal price dp/dx at x units of demand per week is proportional to the price p. There is no weekly demand at a price of $100 per unit [p(0)=100], and there is a weekly demand of 8 units

    asked by Anonymous
  64. Please HELP CHEM

    How many grams of CaCl2 would be required to be added to water to prepare 1liter (1000ml) of a 1.72% (w/v) aqueous solution of CaCl2?

    asked by Tina
  65. 6th Grade Math

    A rectangular packing crate that is 3 feet wide, 4 feet high, and 6 feet long is used to ship jewelry boxes that are 1 foot wide, 1foot long, and 1 foot high. V=lwh. What is the volume of the rectangular packinging crate? I think it's 72 cubic feet. IS

    asked by Math..Please Help!
  66. math

    someebodyyyyyyyyyyyyyyy help stuck in pre algebra hw!!!!!!!!!!!!!!!!

    asked by Anonymous
  67. physics

    Find the minimum kinetic energy needed for a 3.7×104-kg rocket to escape the Moon.

    asked by Randy
  68. Math

    A moving truck fills up a shipment at an old address, at (-2,1). It travels 7 blocks south and 6 blocks east to the new address. What is the location of new address?

    asked by Annette
  69. law of sines and cosine

    a house is built on a triangle plot of land. two sides of the plot are 160 feet long and they meet at an angle of 85 degrees. if a fence is to be built around the property, how much fencing material is needed

    asked by s
  70. physics

    German silver wire has a cross-sectional area of 2.047 x 10^-3 cm^2. How many meters are needed to make a resistance of 100 (omega)? I can't find the resistivity of German silver wire. I've googled a few places, but each one gives me a different number.

    asked by Sejul
  71. e-commerce

    The business plan should include the concepts and ideas covered during the past several weeks. The following points need to be addressed in your business plan for the establishment of an e-commerce site: The e-commerce infrastructure Marketing concepts for

    asked by d
  72. Chemistry

    100 grams of glucose is mixed with 500 grams of water. 10 grams of yeast is then added to the mixture. If the reaction goes to completion, what is the mass of ethanol in the final mixture?

    asked by William
  73. physics

    A uniform plank of length 4.7 m and weight 221 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 440 N walk on the overhanging part of the plank before

    asked by Anonymous
  74. chemistry

    if you have 100 ml each of 1.0 m solutions of NaCl,KCl, and CaCl2 which solution would have the largest mass? explain..

    asked by lilly
  75. chemistry

    How many atoms of sulfur are present in 32.0 moles of sulfur? why?

    asked by Jasmin
  76. Calculus 1

    Let f be the function given by f(x)=3sqrt(x-2). A) On the axes provided sketch graph of f and shade the region R enclosed by the graph f, the x-axis, and the vertical line x=8 (already completed just mentioned it for part B.) B) Find area of the region R

    asked by Michael
  77. physics

    The wavelength of an electromagnetic wave is measured to be 600 m. What is the frequency of the wave?

    asked by Mateo
  78. Trig

    If two runners determine the angle of elevation of a hot air ballon is 24.5 degrees and 22 degrees. The hot air ballon is 1500 feet directily above a point on the highway east of both runners. How far apart are they? A trigonometry question.

    asked by Mackenzie
  79. TRIGONOMETRY

    hey can somebody help me , its like a hundred questions, im helping my cousin doing it...lol cos=sin60 sin=cos45 tan=1/tan30 cos^2(90' -0)/1-cos - sin(90' - O)

    asked by LUKPING
  80. Chemistry -please help!

    A zinc-copper battery is constructed as follows at 25°C. Zn|Zn^2+ (0.15 M)||Cu2+(3.00 M)|Cu The mass of each electrode is 200. g. a) Calculate the cell potential when this battery is first connected. - i got this to be 1.14V b.) Calculate the cell

    asked by Mandy
  81. Physics (please help)

    Calculate the magnitudes of the gravitational forces exerted on the Moon by the Sun and by the Eart when the two forces are in direct competition, that is, when the Sun, Moon and Eart are aligned with the Moon between the Sun and the Earth. This alignment

    asked by Bon oncle
  82. maths

    I need to buy 100 farm animals with $100.. I need to have brought at least on of each animal. Roosters are $5ea, Hens $3ea and chickens 3 for $1. Can anyone help???

    asked by bp
  83. chemistry

    Identify the acid/conjugate base and base/conjugate acid pairs for the following reactions H2CO3(aq) + H2O(l) H3O+(aq) + HCO3 -(aq) C5H5N(aq) + H2O(l) C5H5NH+(aq) + OH-(aq

    asked by jake
  84. Grammar

    Linking and action verbs. I have 3 sentences not sure what the verb or linking verb is in them. 1. I am happy for my brother. 2. They are quiet in the library. 3. Aris grows flowers in her backyard.

    asked by Kam
  85. English

    What's a good thesis statement for the book hunger games ?

    asked by Kay
  86. math

    how do i express each ratio as a fraction in simplest form?

    asked by janie
  87. physics

    The physics of the DNA molecule. The two strands of the DNA molecule are held together by electrostatic forces. There are four bases which make up the DNA molecule, thymine (T), adenine (A), cytosine (C), and guanine (G). In two of the bases, thymine and

    asked by aly
  88. Metis of the Red River

    About the Conflict that occurred between the Selkirk settlers and the Metis, could there have been any way to prevent it? Like could a peaceful solution have been found?

    asked by Anonymous
  89. physics

    I need to know the resistivity of german silver wire. I've looked at a few Google sources and I've seen several different results. Anyone know which value I should use?

    asked by Sejul
  90. college math

    Braking distance The braking distance y in feetthat it takes for a car to stop on wet ,level pavement can be estimated by y = 1/9 x^2, where the x is the speed of the car in miles per hour Find the speed associated with with each braking distance. (a.) 25

    asked by Shin
  91. biology

    could you put the following into order from smallest to largest?? DNA GENE CHROMOSOME

    asked by alexis
  92. 8th grade physics/science

    assume you are standing on a dock and watching the waves pass directly under where you are standing. You count the number of seconds it takes w1,w2,w3 and w4 to pass directly below you. you determine that all four waves below you in two seconds. info: in

    asked by hannah
  93. Physics

    A movable piston having a mass of 7.26 kg and a cross-sectional area of 5.26 cm2 traps 0.250 moles of an ideal gas in a vertical cylinder. If the piston slides without friction in the cylinder, how much work will the gas do when its temperature is

    asked by Lauren
  94. Grade 11 math

    A rocket carrying a weather satellite is launched. As it moves through space, the rocket is tracked by two tracking stations located 24 km. apart, beneath the rocket. The 2 tracking stations both lie west of the launching pad. at a specific moment, the

    asked by Mhy
  95. Algebra 2 review

    how many feet from the base of a house must a 39-foot ladder be placed so that the top of the ladder will reach a point on the house 36 feet from the ground

    asked by Anonymous
  96. geometry

    what is the surface-area-to-volume ratio for a rectangular prism with edge lengths 6, 5, and 9?

    asked by baber
  97. maths

    here is a rectangle with a width of 15.7 centimtres the perimeter of this rectangle is 85 centimetres calculate the lengh of the rectangle

    asked by taila
  98. MATh

    JERRY invested $650 at a simple interest rate of 3.5% per year. How much will Jerry have in 8 years.

    asked by christomes
  99. Physics

    A 37 ohm lamp and a 59 ohm lamp are connected in series and placed across a potential of 43 V. What is the equivalent resistance of the circuit? Answer in units of ohm. What is the current in the circuit? Answer in units of A. What is the voltage drop

    asked by Maria
  100. math

    A company manufactures two different cylindrical containers for storage of pool chemicals. If the radius and height of the larger container are twice the radius and height of the smaller container, by what factor does the volume increase?

    asked by lisa
  101. algebra2trig

    the merry go round music box has a diameter of 12.5 inches. it is scale model of a Hershchell-Spillman Carousel which is 35 feet in diameter. A miniature horse 5.5 inchs from the center of the music box makes one complete rotation in 27 seconds. find the

    asked by Olena
  102. College math

    Highway curves If a circular curve without any banking has a radius of R feet, the speed limitL.in miles per hour for the curve is L=1.5 R. (a.)Find the speed limit for a curve having a radius of 400 feet. (b.) If the radius of a curve doubles, what

    asked by Shin
  103. English

    Position of Modifiers (errors in the placement of a modifier in a sentence) Answer Actually, the pineapple was a symbol of hospitality. Everything that King Midas touched turned to gold, including his food and water. The farmer butchered the pig he had

    asked by Kimberly
  104. Physics ~ missed this lecture pls help

    An object is p = 34.3 cm in front of a concave mirror. Its real image height is 6 times larger than the object height. What is the location of the image? Answer in units of cm. What is the radius of curvature of the mirror? Answer in units of cm.

    asked by cr
  105. math

    240 feet of fencing material is going to be used. What should the dimensions be to produce a maximum enclosed area.

    asked by mimi
  106. hcs/552

    How does the Afghanistan opium black market affect the U.S. pharmaceutical industry? Discuss the pros and cons of the U.S. pharmaceutical industry engaging the Afghan government about creating a business partnership concerning opium.

    asked by Anonymous
  107. modern physics

    What is the energy equivalent of 2 e V?

    asked by ashley --
  108. earth

    what are the directions of a local wind along a shoreline

    asked by dekesha
  109. physics

    The two gears, with radii indicated below, have equal teeth spacing and are well-meshed. In all cases, the large gear is turning at the same, constant angular speed. Rlarge Rsmall A 0.4 m 0.2 m B 0.4 m 0.3 m C 0.8 m 0.4 m D 0.6 m 0.5 m E 0.2 m 0.1 m F 0.6

    asked by steve
  110. Math

    Find two integers that make the equation true. Y squared = 100

    asked by 7th grader
  111. physics

    if a car drives over a hill with a radius of 57 meters. At what maximum speed can the car travel without flying off the road

    asked by Wendy
  112. physics

    Which of the following is correct for the nuclear fission reaction? Choose one answer. a. The mass of the daughter nucleus is always greater than the mass of the parent nucleus. b. The mass of the daughter nucleus is always less than the mass of the parent

    asked by ashley --
  113. VB

    Programming in Visual basic 2008 exercise 11.5 Create a project that store personal information for a little electronic “Black Book” the fields should include name, phone number, pager number, cell phone number, voice mail number and email address.

    asked by Phanel
  114. math

    Amy has $200 less invested at 9% than she does at 6.5%. If the annual return from the two investments is the same, how much is invested at each rate?

    asked by Robert
  115. Business Law- Ethics

    I'm not sure how to go about doing this. I feel like it's an easy question but im thinking to far into it. I want to say that Davis would be the first person to be let off & Carter would be the last person to be let off. I'm not sure what order the rest

    asked by Josh
  116. calculus

    x+4/5 + 5-x/4=37/10

    asked by Anonymous
  117. English

    I'd like you to check these other sentences please. Thank you very much. 1)The train is going to take eight hours to get to Rome. 2) The train journey is going to last eight hours. 3) We are flying back to Milan on 12 July. Our parents are going to pick us

    asked by Henry1
  118. math

    81x^2 - 126xy + 49y^2 factoc into a product of bionomials

    asked by carol
  119. Chemistry

    Help me please wether i d0ne it right,what is the mass of calcium carbonate is required to react with sulfur dioxide produced by burning 1000 kgs of coal that contain 5% sulfur by mass?tnx

    asked by joy
  120. math

    find the greatest common factor and simplify your answer. 4v to the 7th power y to the 9th power and 16v to the 6th power x to the 8th power y to the 5th power.

    asked by kim
  121. Trigonmetry

    If an airplane is traveling at 750 mph bearing of S 65 W for 3 hours how far will the plane travel? And what bearing should they travel home?

    asked by Mack
  122. Chemistry

    can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP

    asked by brian
  123. Trig

    What is the vertical asymptote of y=tan(x-pi/3)?

    asked by Mack
  124. precalculus

    Find the angle between the two sides of length 6 in an isosceles triangle that has one side of length 9 and two sides of length 6. Find using the inverse.

    asked by Victoria
  125. Math

    Use the pythagorean Theorem to solve this problem. A painter places an 11 ft ladder against a house. The base of the ladder is 3 ft from the house. How high on the house does the ladder reach?

    asked by MathIsTheBest
  126. algebra

    Problem Two: 5/9 + (2/9)x = 25/7 + (6/7)x – 2/3 Multiply figures inside parentheses 5/9 + (1 x 2/9x) = 25/7 + (1 x 6/7x) – 2/3 Collect like signs 5/9 + 2/9(6/7x) = 25/7 + (-2/3) Multiply like signs 2 x 6 9 7 Reduce like numbers 2 x 2 = 4x 3 7 21x

    asked by aria
  127. Math

    An airplane takes off in a straight path. When it has traveled 5 km, it is 3 km high. To the nearest kilometer, what is the horizontal distance, d that the airplane has flown over?

    asked by Darren
  128. finance

    Use the capital-asset pricing model to predict the returns next year of the following stocks, if you expect the return to holding stocks to be 12 percent on average, and the interest rate on three-month T-bills will be two percent. Calculate a stock with a

    asked by ky
  129. math

    find the area of the label on a can with a radius of 5.1 centimeters and a height of 2.9 centimeters.

    asked by torri
  130. algebra

    A gardener wants to create a triangular garden in the shape of a right triangle with shortest side length x – 2y ft. and the middle length side x + 4y ft. What is an algebraic expression for the area of the garden? Be sure to multiply this out and

    asked by andrea
  131. College Algebra

    Solve the exponential equation algebraically: 2^x+1=5^2x

    asked by Chris
  132. Chemistry

    A sample of nicotine weighing 0.3204 g was vaporized in a flask with a volume of 487 mL. This sample exrted pressure of 74.3 mm Hg at 20 degrees C. What is the molar mass of nicotine? I know this has to do with N=P*V/R*T. and 1 atm=760 mm Hg. Please help

    asked by Ben
  133. Need help finding website

    Im working on my planning. And Im talking about a course I would like to take in the future. Anything related with geology. I am trying to find the costs on TRU/UBC. Cant find it on either one of these sites. Please provide me the link. I would like costs

    asked by Anonymous
  134. MATH

    I AM A TWO DIGIT NUMBER LESS THAN 50. IF YOU PUT ME IN GROUPS OF 7, THEN THERE ARE 2 LEFT OVER. THE SUM OF MY DIGITS IS 8. WHO AM I ?

    asked by RON
  135. Physics ~ please help!

    An object is p = 34.3 cm in front of a concave mirror. Its real image height is 6 times larger than the object height. What is the location of the image? Answer in units of cm. What is the radius of curvature of the mirror? Answer in units of cm.

    asked by cr
  136. English

    I have a question on my previous post. Why do you say "in the morning I usually have a shower/On the following morning/night I had a shower? I included a few more doubts. Thank you very much. 1)What are you going to do for/during/on (not “in”) your

    asked by Henry1
  137. math

    there are 15 kids in the class 1/3 of the class is boys how many boys

    asked by Anonymous
  138. english

    I had to correct the following fragment sentence error. Please advice if they are correct. Thank you in advance for your help. 1. It is true that the first drive-in theaters opened in New Jersey in 1933, which was in the middle of the Great Depression when

    asked by Amor
  139. chemistry

    To what volume must a solution of 83.1 g H2SO4 in 505.3 mL of solution be diluted to give a 0.28 M solution? I do not understand this problem. Also as a hint the professor said to use M1V1= M2V2.

    asked by tina
  140. physics

    claculate the force of gravity between two identical balls 8kg each, if they are 5m apart?

    asked by marion
  141. Chemestry

    A 1L of buffer was prepared from 0.15 mole of Na2HPO4 and 0.10 moles KH2PO4. a) What is your pH and what is the pH change that adding of 80.0 mL of 0.100 mol L-1 NaOH cause? b) What happen to the pH after adding 10.0 mL of 1.0 mol L HNO3-1.

    asked by Margo
  142. physics

    A water wave is generated in a ripple tank by an oscillator that vibrates 50 times in 30 seconds. A given trough of the wave travels 50.0 cm in 15 seconds. What is the wavelength of the water wave? Produce all your workings.

    asked by ashley --
  143. physics

    Which of the following is true for the transition of electrons from a higher energy to a lower energy state? Choose one answer. a. The greater the energy difference between the levels, the more is the wavelength of the photons emitted. b. The greater the

    asked by ashley --
  144. math

    Factor the expression 4x^2-20xy+25y^2 into a product of binomials

    asked by kozy
  145. biology

    The doubling time of a type of bacteria is 35 minutes. If every bacterium reproduces, then after 35 minutes a population of 64 bacteria will have grown approximately to what size?

    asked by keke
  146. Metis of the Red River

    About the Conflict that occurred between the Selkirk settlers and the Metis, could there have been any way to prevent it? Like could a peaceful solution have been found?

    asked by Anonymous
  147. Chem

    A solution is prepared by adding of KOH to 1 liter of water. The resulting solution has an [OH] of 1*10 to the negative 3. What would be the pOH of this solution?

    asked by Carla M
  148. Chem

    If 25 ml of bromine, a liquid element at room temperature, is added to 100ml of water, what would be the resulting molar concentration of bromine?

    asked by Carla M
  149. PHysics

    A dragster maintains a speedometer reading of 100 km/h and passes through a curve with a constant radius. Consider the following forces: I) air drag pushing back on the car; II) gravity pulling down on the car; III) the ground pushing up on the car; IV)

    asked by Leslie
  150. Grammar

    Is this a correct sentence using a linking verb? My dog Sam is in the bathtub. Is "is" the linking verb?

    asked by Kam
  151. Science

    HELP! I have a friction question that says: What causes rocks to become smooth and founded. I know it's friction, but why?

    asked by Ravin
  152. math

    144 squared is rational right?

    asked by Adam
  153. Physics ~ missed this lecture pls help

    A thin converging lens of focal length 9.82 cm forms an image of an object placed 18.5 cm from the lens. Find the image distance. Answer in units of cm. What is the magnification for an object distance of 18.5 cm? Find the location of the image for an

    asked by cr
  154. english language

    would i say: this would greatly contribute to successful customer advices on footwear. or this would greatly contribute to successful advices to customers on footwear. thanx =)

    asked by Viola
  155. Math

    Evaluate the expression for each value of n. 6xn n= 21,36,59

    asked by Carson
  156. math

    simplify, 4v to the 7th power y to the 9th power and 16v to the 6th power x to the 8th power y to the 5th power.

    asked by kim
  157. physics

    Two children are having a splashing competition using a diving board. The first child is very small and jumps lightly off the end of the diving board. The second child, who is much larger, jumps heavily off the board. A. In what way or ways, if any, are

    asked by erin
  158. math

    The Zalinsky family can drive the 220 miles to their cabin in 4 hours at 55 miles per hour. Son Jeff claims that they could save half an hour if they drove 65 miles per hour, the speed limit. How long will it take the family if they drive 65 miles per

    asked by Gabi
  159. chemistry

    what solution of sugar in water has the highest molarity?

    asked by lilly
  160. Health as a Social Institution

    1) What do you think Canadians can learn from other cultures about the treatment of illnesses? 2) Define good health, illness, and disease in your own words and use examples.* Put yourself in someone's place living in a non-Western nation. How and why

    asked by Alex L.
  161. english-literature(honey, baby, sweetheart

    what kind of tragic achetype or hero is Ruby McQueen in the novel ''honey, baby, sweetheart''. PLS I REALLY NEED HELP. THIS IS DUE TOMORROW

    asked by ted
  162. Physics Class

    The equation describing the motion of an object is y=0.8cos(4.2t+0.32). What is its period?

    asked by Paige
  163. finance

    Consider the following four debt securities, which are identical in every characteristic except as noted: W: A corporate bond rated AAA X: A corporate bond rate BBB Y: A corporate bond rated AAA with a shorter time to maturity than bonds W and X Z: A

    asked by ky
  164. Math

    Sketch the graph of i) g(x) = sqrt(6x - x^2) ii)f(x) = (x^2 -2x - 3)/(x - 3)

    asked by Sandhya
  165. math

    Find all real solutions to the following equation: (x^2 -7x +x)^(x^2 - 2x - 35)

    asked by Diana
  166. chemistry

    can someone please explain how to indicate where a label appears in a product? for example: where the label appears in 2-[14C]-Glycine --> AMP

    asked by brian
  167. physics

    If you had a more accurate ruler with divisions of 1mm (a standard ruler you would find) what would the absolute error be? (In cm)

    asked by H.T
  168. law of cosines and sines

    m

    asked by Anonymous
  169. trigonometry

    find the polar form of the complex number: square root 3 minus square root 3i

    asked by Anonymous
  170. MATH

    I AM A TWO DIGIT NUMBER LESS THAN 50. IF YOU PUT ME IN GROUPS OF 7, THEN THERE ARE 2 LEFT OVER. THE SUM OF MY DIGITS IS 8. WHO AM I ?

    asked by RON
  171. geometry

    A polygon has a perimeter of 13 cm. What is the perimeter of its image after a size transformation with a scale factor of 3? Why?

    asked by Kasey
  172. Physics (please help!!)

    The moon causes tides because the gravitational force it exerts differs between the side of the Earth nearest the Moon and that farthest from the Moon. Find the difference in the accelerations toward the Moon of objects on the nearest and farthest sides of

    asked by Fernando
  173. Math

    A raffle held by Mundane Products has collected 700 entries. They are giving away 40 TVs and 30 stereos. John bought 5 entries for the raffle. What is the probability that John wins exactly one TV as well as exactly one stereo? John just heard that the TVs

    asked by Meghan
  174. Geometry

    Will an octagon and an isosceles triangle tessellate a plane?

    asked by Micah
  175. science

    What causes rocks near a river to become smooth and rounded

    asked by Anonymous
  176. science

    in 10-15 lines critically discuss 5 ways in which the human or environmental problem impact on the community

    asked by hloni
  177. Literature quick question

    I am doing an argumentative essay on chemtrails and I need some help on the opposing side (what's their agrument). I have 2 points so far and I need three the 2 so far are: 1. Some say that the lines are contrails 2. Some say it's condensation from the jet

    asked by Candy
  178. Physics

    German silver wire has a cross-sectional area of 2.047 x 10^-3 cm^2. How many meters are needed to make a resistance of 100 (omega)? I don't know where to begin.

    asked by Sejul
  179. Physics

    A stationary 3.0-m board of mass 6.0 kg is hinged at one end. A force is applied vertically at the other end, and the board makes a 30° angle with the horizontal. A 40-kg block rests on the board 80 cm from the hinge as shown in the figure below. a) Find

    asked by Kayla
  180. Chemistry

    Could someone help out with the second question. Its about reagents. Click the link for the question. img*photobucket*com/albums/v712/DeadMan986/Q20-21*jpg All of the . are replaced with * in the link

    asked by Jules
  181. Chemistry HELP!!

    A sample of nicotine weighing 0.3204 g was vaporized in a flask with a volume of 487 mL. This sample exrted pressure of 74.3 mm Hg at 20 degrees C. What is the molar mass of nicotine? I know this has to do with N=P*V/R*T. and 1 atm=760 mm Hg. Please help

    asked by Ben
  182. Chemistry

    Im stuck on this question. The unusual aspect of functional group replacement of an alcohols hydroxyl group by chlorine by treatment with thionyl chloride is: A)spontaneous creation of a carboccation and SO2 Cl,the ion pair created by SOCl's mechanism of

    asked by Erik
  183. Science

    I am doing a science project about which juice cleans pennies best. I tried lemon, orange, and apple juice. I did three trials of my experiment. On average, the orange juice cleaned the pennies much better than the lemon or apple juice. My research shows

    asked by Natalie
  184. language

    Is the word tower a predicate

    asked by Vincent
  185. 8th grade math

    A box contains 6 red balls, 4 white balls, and 5 green balls. If three balls are drawn in succession without being replaced, what is the probability that they are drawn in the order red, white, green? A x 8/225 B x 4/91 C x 12/445 D x 1/225

    asked by Lo
  186. physical science

    There is a net passage of 4.5 1018 electrons by a point in a wire conductor in 0.26 s. What is the current in the wire?

    asked by Eric
  187. FRENCH

    Prepositions before cities, countries, and continents. C'est où, cette ville? Dites dans quelle ville et dans quel pays chaque personne travaille. Modèle: M. Barrault/Marseille M. Barrault travaille à Marseille, en France. 1. Mlle Martinelli/Rome Mlle

    asked by Sydney
  188. Algebra 2 review

    In triangle ABC, the ratio of the measure of angle A to the measure of angle B is 3:5. The measure of angle C is 20 more than the sum of the measure of angles A and B. What is the measure of each angle in triangle ABC?

    asked by Beth
  189. lanuage

    is thissentence punctuated correctly? "the hardware store down the street, which had been paved recently,is open until midnight five days a week."

    asked by melisa
  190. Math

    You choose a head coach and an assistant from a group of 12 applicants. How many different groupings are possible? I know it is either 24 for a double combination of 12 - or I was thinking for number of possibilities it could be 12x11 = 132? Can anyone

    asked by Jess
  191. algebra 2 review

    A training ring for horses is an oval formed from a rectangle with two semicircles on either end. Rounded to the nearest foot, how many feet of fencing is required to surround the entire ring with a fence?

    asked by Beth
  192. English

    I did the corrections myself. Can you please check them? I just wanted to know if it is better to say "at Medford Square or in Medford Square, "to leave Turin for Rome", "to leave from Turin and go to Rome", "on" OR "during" our last night in Rome?". I

    asked by Henry1
  193. calculus

    use reimann sums and a limit to compute the exact area under the curve of y=2x^2+1 on the interval[1,3]... i am having trouble getting the right answer which is suppose to be 58/3. I would just like to see the set up of the sum so check if am doing it

    asked by amy
  194. Calculus

    Use fundamental theorem of calculus: Int(pi/2_pi) of e^(sin(q))*cos(q)dq

    asked by Rachel
  195. physics for Mr. Pursley

    I see 18% Nickel Alloy A (under pure silver) is listed as 2.874 x 10^-7 Is this what I should use?

    asked by Sejul
  196. Trigonometry

    convert polar equations to rectangular coordinates. 1.) θ=π 2.) r=6 cos θ 3.) sec θ=2

    asked by Kayla
  197. algebra

    Megan factored the expression3x^2-23x+14 as (x-2)(3x-7) . But when Jacob applied the FOIL principle and multiplied out (x-2)(3x-7) , he got 3x^2-13x+14 ; thus, Megan’s solution does not appear to check. Why is that? Please help Megan to understand this

    asked by kozy
  198. Managed Health Care

    Detail two examples of what health insurance companies decided to do to help with marketing appeal and positioning to consumers regarding choices and selection of a health care plan?

    asked by Dolores
  199. English

    Errors in the use of punctuation marks - Semicolons and Colons Answer Daniel Boone was born in Pennsylvania; his parents were English Quakers. Leftover turkey can be used in turkey tetrazzini, turkey burgers, and turkey chowder. In 1819, the Baptists

    asked by Kimberly
  200. English

    # Errors in the use of punctuation marks - Comma Answer Birds such as eagles, hawks, and falcons are known as raptors. Money raised by the sale of UNICEF greeting cards goes toward famine relief, health care, and education. The Dead Sea Scrolls shed new

    asked by Kimberly
  201. Pre-Calc

    Use the fundamental identities and appropriate algebraic operations to simplify the expression. cosx / (1+sinx) Answer: secx Can someone please assist as to how I get to the answer?

    asked by Lizette
  202. math

    Simplify 1 over 2 of 1 over 4 devide 1 over 3 all over 1 over 6 minus 3 over 4 plus 1 over 2

    asked by Simplification
  203. precalculus

    Find the angle between the two sides of length 6 in an isosceles triangle that has one side of length 9 and two sides of length 6. Find using the inverse.

    asked by Victoria
  204. law of cosines

    law of cosines m

    asked by Anonymous
  205. Algebra

    I cannot understand how you worked out this problem Bob. Could you explain the steps you made? Algebra - bobpursley, Wednesday, April 27, 2011 at 10:36am if it is as I wrote it, then (45x/6t)11x= 45*11*x^2/6t = 15*11*x^2/2t= 165x^2/2t Algebra - tish,

    asked by aria
  206. education

    can someone please give an example question that can be used to interview a librarian about the issues/trends in children's literature.

    asked by carol
  207. Chemistry

    If 25 ml of bromine, a liquid element at room temperature, is added to 100ml of water, what would be the resulting molar concentration of bromine? Please Help me!!!

    asked by Tia
  208. Trig

    What is the period of f(x)= 1/2 tan(3x+pi/2) and -2/3 cos(x/3-1/2)?

    asked by Jen
  209. math

    4v to the 7th power y to the 9th power and 16v to the 6th power x to the 8th power y to the 5th power

    asked by kim
  210. Chemistry

    Here's is what I did: Collect water samples from Farm Lane bridge (500 mL minimum)þ Filter water samples using small mesh filter Note: Weigh the dried filter before filtration! Dry the filter in drying oven (~24 hours)þ Weigh the filter after drying. Day

    asked by George
  211. Chemistry

    Here's is what I did: Collect water samples from Farm Lane bridge (500 mL minimum)þ Filter water samples using small mesh filter Note: Weigh the dried filter before filtration! Dry the filter in drying oven (~24 hours)þ Weigh the filter after drying. Day

    asked by George
  212. Finance

    One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work.

    asked by ky
  213. Physics Class

    A crowbar is used to wrench open a wooden crate. The crowbar is situated so that a point 8 cm from the end digging into the box acts as a pivot point. The crobar is gripped on the other side, 29 cm away from the pivot. If the person exerts a force of 110

    asked by Paige
  214. help help 9 physics) i need an aswer fast!

    a 0.5 m^2 solar collector radiation from the sun and focuses it on 250g of water that is inially at 23 degrees . the average intensity of radiation arriving from the sun at this location is 550 Wm^-2. if you assume that this is collected with 100%

    asked by H.T
  215. nukleus

    i have seen for sale fossils of ginger and garlic in antic shop. they look like ginger/garlic but it is rock hard. the price is about $8 each, which seems to be very cheap. the shopkeeper says they were found near a cave. question: if they are really

    asked by anwar
  216. math

    Simplify 5(y + 1)

    asked by Jake
  217. sentence expression

    explain mathematical expression for each phrases like 3 less than a number x

    asked by mirna
  218. Math

    Estimate to the nearest integer. Square root of -55

    asked by Dylan
  219. Statistics/Social Psychology

    I have collected ssps data and am having trouble taking the data and putting it into a coherent sentence. I can't paste the chart but here is what I have. An independent-samples t-test was conducted to compare the length of jail sentence given based on the

    asked by Suzanne
  220. physics please help

    What is the resistance of 125 m of aluminum wire that has a diameter of 0.8118 mm? The resistivity of aluminum is 2.824 x 10^-8 (omega) m. I need help with the set up. we've been using R = V/I, but haven't had anything with resistivity. I don't know where

    asked by kriti
  221. math

    4 tenths, 5 hundreds, and 6 hundredths = ?

    asked by kyle
  222. MATH

    I AM A TWO DIGIT NUMBER LESS THAN 50. IF YOU PUT ME IN GROUPS OF 7, THEN THERE ARE 2 LEFT OVER. THE SUM OF MY DIGITS IS 8. WHO AM I ?

    asked by RON
  223. physics

    claculate the force of gravity between two identical balls 8kg each, if they are 5m apart?

    asked by marion
  224. social science

    investigate which laws and policies address the problem polution

    asked by Kamogelo
  225. proportions

    make 3/5 u=in to a percent then round it to nearest tenth

    asked by zakaria
  226. math

    The area of a rectangular athletic field is represented by the expression -15x^5+75y^3-30xy square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense “length times width”) of the athletic field. Include

    asked by kozy
  227. physics

    What is the wavelength of the peak of the blackbody radiation curve for the human body (T = 310 K)?

    asked by Mateo
  228. MATH(interest rate)

    JERRY invested $650 at a simple interest rate of 3.5% per year. How much will Jerry have in 8 years.

    asked by christomes
  229. American Government

    This is a matching part and I already got the rest but I can't get these two. Here are the questions from column 1: 1. metropolitan government 2. county government Here are the choices from column 2: d. form of government that began largely in the

    asked by Cheryl
  230. Principles of Mgmt

    Discuss the pros and cons of the following statement: “Egalitarian companies are more innovative.

    asked by Latonya
  231. math

    what is 50% of 20

    asked by steven
  232. computer question

    I have a project and I selected chapter 6 my book is Understanding computer 13th Edition..the question is I will develop a Power-Point presentation on how computing is expected to impact the field or fields I want to into a career, and in my presentation

    asked by erianne
  233. Intro to logic

    1. Which is an example of an expressive use of language? A) Others will say that we shouldn't even talk about cutting spending until the economy is fully recovered B) I want you to know that one of the reasons I kept the government open was so I could be

    asked by Tito
  234. English

    I forgot to include the following sentences. (I'n unsure about the use of the prepositions of location and time). 1)During my journey to Australia I hope I’ll see some typical animals such as koala bears and kangaroos. 2)When we return to Italy, we’ll

    asked by Henry1
  235. mathematics

    -3x- 4x+2y-4y-2x

    asked by michael
  236. Turquoise Ring Marking

    Does anyone know anything about the marking "MP in a circle" Silver turqoise ring that belonged to my grandmother

    asked by Flo
  237. MP Marking

    Can anyone help me identify the marking on my grandmothers silver and turquoise ring. The marking is MP in a circle.

    asked by Flo
  238. Organic chem

    What is the rationale for the non-basic activity of the nitrogen in pantothenic acid.

    asked by Anonymous
  239. Chemistry

    If 25 ml of bromine, a liquid element at room temperature, is added to 100ml of water, what would be the resulting molar concentration of bromine?

    asked by Tia
  240. Psychology

    Dr. Gillian explained that research has identified over 25,000 genes which are responsible for the genetic information which progresses from generation to generation. These genes are: a telomeres which cap the chromosome. b located in a specific order

    asked by Nicci
  241. government

    Why are political parties created?

    asked by Stephanie
  242. English

    Were all my corections OK (except complimentary?). I’d like you to check the following clothes’ descriptions as well as a few journey’s arrangements (in particular the use of prepositions of location or of time with “holiday”, “hotel”, and

    asked by Henry1
  243. precalculus

    find lim y. and lim y x->infinity. x-> negative infinity 1.) y= (x + sinx)/x 2.) y= x/ (1+ 2^x)

    asked by Yoshi
  244. chemistry

    predict the type of reaction that occurs between liquid pentanol and oxygen.

    asked by Anonymous
  245. hcs/552

    In terms of supply and demand, is price the only thing that matters? Which economic staple, supply or demand, does the health care reform bill affects the most?

    asked by Anonymous
  246. Chemistry

    What is the total energy transfer(in KJ) when 10.00 pounds of water vapor at 110 degrees C becomes ice at 253K? Assume that the specific gravity of water = 1.00.

    asked by Tyler
  247. Calculus

    Find the following interval: (2e^(2sqrt(y))/sqrt(y))

    asked by Elena
  248. Chemistry

    Could someone answer this. Im stuck on it. In general, the most elegant way to add one carbon with an OH on it to a primary alkyl halide: A)Convert the alkyl halide to a grignard and add formaldehyde, followed by H3O B)Convert the alkyl halide to a lithium

    asked by Anonymous
  249. Chemistry

    I think the answer to this question is choice C, but im not sure. I have to find the product for this question. img*photobucket*com/albums/v712/DeadMan986/Q38*jpg The * in the link should be .

    asked by Jules
  250. math

    the length of a rectangle is 4cm less then twice its width. the perimeter of the rectangle is 34cm. what are the demensions of the rectangle?

    asked by Anonymous
  251. Chemistry

    Mr.drwls help me to check if my answer is c0rrect,tnx anyways, what is the mass of calcium carbonate is required to react with sulfur dioxide produced by burning 1000 kgs of coal that contain 5% sulfur by mass? (0.781 kmole)(100kg/mole)=78.1 kg

    asked by joy
  252. Algebra 1

    how do find the y and x intercepts for the equation 3x + y = -7 ?

    asked by Eve
  253. Math

    Estimate to the nearest integer. Square root of 40.

    asked by Adam
  254. algebra

    The area of a rectangular athletic field is represented by the expression 9y^2 - 25z^2 square meters. Write an algebraic expression to represent one possible set of dimensions (in the sense “length times width”) of the athletic field. Include correct

    asked by carol
  255. College Math

    Hooke's Law the table shows the distance D that a spring stretches when a weight W is hung on it. W (pounds 2 6 9 15 D (inches) 1.6 4.8 7.2 12 (a.) Do the data represent direct or inverse variation? Explain. (b.) Find an equation that models the data. (c.)

    asked by Shin
  256. English

    Errors in the use of punctuation marks - Use of Quotation Marks and Terminal Punctuation Answer Several universities in the city offer the following degrees: B.A., M.A., Ph.D. Must students write a research paper and pass a written examination in order to

    asked by Kimberly
  257. English

    Word Choice and the Use of Idioms (errors in the choice of words and in the use of idiomatic expressions) Answer With all of his acne pits, in the dark his face resembled a cratered moon on a cloudy night. It was a strenuous tennis match, but after a hot

    asked by Kimberly
  258. Physics

    How much energy is deposited in the body of a 78 kg adult exposed to a 2.9 Gy dose? Please and thank you.

    asked by Trisa
  259. English

    I included my corrections in brackets or I re-wrote them. Can you please check them? Thank you. 1)Furthermore, she thinks, the children love it and it keeps her husband good, because it is just three hundred meters away from his library. 2)Furthermore, she

    asked by Henry1
  260. English

    Why are marginalized characters used in literature?

    asked by Lauren
  261. Art History

    In my art history assignmnet it says this now choose your favorite of the architectural site at Pompeii. So please help me to find a pompii site. or give me that wibsite. Thanks

    asked by Alex
  262. science

    what is the recycling of matter

    asked by richard landry
  263. sentence patterns

    I need to write a 100 page essay about what would happen if the sun explodes using the 5 sentence paterns please help

    asked by clubkay
  264. Maths

    Make q the subj of relation t

    asked by Cyoung
  265. chemistry

    The process that uses electricity to decompose chemical compounds/prepare new chemical compounds

    asked by Anonymous
  266. chemistry

    if you have 2 mol of glucose in 4L of solution, what is the molarity of the solution?

    asked by lilly
  267. Algebra 2

    I need a paragraph explaining the relationship between the zeros of the graph of the function and the solutions to the equation.

    asked by Brandon
  268. MATH HELP

    Law of Gravitation-find an expression for the magnitude of the initial velocity that a projectile must possess in order to leave the earth when air friction is negelcted. The gravitational constant is given as G= 6.67428*10^-11 m^3 kg^-1 s^-2 Please give

    asked by AKUMA
  269. Physics Class

    A 965 kg car is driving along a boardwalk. The car's center of mass is 45 cm in front of the rear wheels, and the distance between the front and rear wheels is 2 m. What total force does the car's front tires exert on the boardwalk? Give your answer in

    asked by Paige
  270. finance

    Suppose that the price of a stock is $50 at the beginning of a year and $53 at the end of the year, and it pays a dividend of $2 during the year. Calculate the stock’s current yield, capital-gains yield, and the return. Show your work for three separate

    asked by ky
  271. physics

    A car with a mass of 890 kg travels at a speed of 20.0 m/s. Seeing that the road ahead is blocked by a rock slide, the driver applies the brakes, stopping the car. The work of stopping the car becomes thermal energy of the car’s four disk brake rotors;

    asked by Anonymous
  272. help physics

    If you have a pair of vernier callipers which have divisions of 0.05mm what would the absolute error be?

    asked by H.T
  273. Financial Management

    What are the advantages and disadvantages of debt

    asked by PLouis
  274. Algebra

    Use the five steps for problem solving to answer the following question. Show all work. Andrew is having an irrigation system installed in his yard. Company A charges $1250 plus $15 per sprinkler head. Company B charges $1200 plus $17 per sprinkler head.

    asked by Janet
  275. math

    i don't understand long division,i'm looking @ problem now it's 3 div by 224

    asked by jaheim
  276. math

    The Pythagorean Theorem will work for any type of triangle. TRUE or FALSE?

    asked by Scarlett
  277. math

    Sinclair has a box of 48 crayons. If 6 are red what are sinclair's chances of pulling out a crayon that isn't red if he chooses without looking?

    asked by Yonai tillman
  278. central

    what is a enslave

    asked by laquetha
  279. English

    I checked other sentences. Can you please have a look at them. 1) Dorian wishes he would stay young forever while the portrait would grow old in his place (I changed the simple past into the conditional as you told me) 2) The sins committed by Dorian

    asked by Henry1
  280. science

    provide 2 institution\community organization that are involve in supporting or giving redress to these disasters .Explain how these organization are involve in providing a safe and healthy environment.suggestion find out about NGO's or other organization

    asked by hloni
  281. Business

    How will demand and supply trends in the high-definition industry affect the price for HDNet’s programming?

    asked by Jenny
  282. French

    Sra could you please check my french post again.

    asked by Sydney
  283. Science

    How could you keep an objects acceleration the same if the force acting on the object were doubled?? Can you answer in 5 sentences please

    asked by Itiel
  284. Spanis8th grade

    Is this correct? Tú salgas la escuela a las ocho.

    asked by Jodie-
  285. geometry

    Find the equation of the line that passes through the point P (-6, 8) and Q (-6, 12), and use the information to answer the question.

    asked by bob
  286. Food

    How did the Wrigley company come up with the name of orbit gum??

    asked by Hannah
  287. Geography

    Review the cities located within the following longitude and latitude coordinates: 70-80 West Longitude and 30-40 North Latitude. Next, consult your local newspaper or other resource for the weather in these cities. Choose one of the cities found within

    asked by surfsupmel
  288. bio

    this type of muscle is what the heart is made of

    asked by Anonymous
  289. social

    sites to help you advertise

    asked by rena
  290. physics

    Find the cross-sectional area of copper wire that is 55.4 m long and has a resistance of 0.943 ohms. The resistivity of copper is 1.79 x 10^-8 ohms m.

    asked by katie
  291. Chemistry

    If the pOH of a solution is determined to be 5, what is the pH of the solution?

    asked by Tia
  292. Chemistry

    Can you determine the pH of a 1 liter solution having an H concentration of 1.0*10 to the negative 3.5

    asked by Tia
  293. math

    solve x in terms of a b and c: bx+a=c i have x= ___-a=c____ b is this correct?

    asked by Anonymous
  294. math

    Is it reasonable for a 7th grader to use a calculator for math?

    asked by Stacy
  295. Chemistry still don't understand the answer

    How many ml of a 2 M solution of HCL would be needed to neutralize 2 ml of a 5 M solution of KOH?

    asked by Tia