Most popular questions and responses by anne
  1. art

    which textile techniquw do quilters use to craft blankets 1. cross-stitching 2. weaving 3. stitchery 4. knitting It's weaving or stitchery.. Help please

    asked on May 12, 2015
  2. english

    what roles are played by the female characters you encountered in this unit? describe some of these females characters, their traits, and the roles they played within the selections you read, especially considering that all of those selections had male

    asked on December 19, 2017
  3. Physics

    The drawing shows a square, each side of which has a length of L = 0.25 m. Two different positive charges q1 and q2 are fixed at the corners of the square. Find the electric potential energy of a third charge q3 = -7.00 10-9 C placed at corner A and then

    asked on January 30, 2012

    6. The following words share a denotative meaning. Which one has a negative connotation? (1 point) confident certain decisive demanding ~ 7. Read the following Chippewa song. Identify its purpose. A loon I thought it was But it was My love's splashing oar.

    asked on September 23, 2012
  5. Algebra

    Your friend claims that she has a bag of 30 coins containing nickels, dimes, and quarters. The total value of the 30 coins is $3. There are twice as many nickels as there are dimes. Is your friend correct? Explain your reasoning

    asked on September 6, 2015

    A 15g bullet is fired horizontally into a block of wood with a mass of 2.5 k and embedded in the block. Initially the block of wood hangs vertically and the impact causes the block o swing so that its center of mass rises 15cm. find the velocity of the

    asked on August 6, 2014
  7. Physics

    A 30.0 kg box is being pulled across a carpeted floor by a horizontal force of 230 N., against a friction force of 210 N. Calculate the acceleration of the box and find the x and y components of the acceleration of the box. Align the positive direction

    asked on March 26, 2012
  8. Algebra

    An airplane flies 165 miles from point A in the direction 130 degrees and then travels in the direction 245 degrees for 80 miles. Approximately how far is the airplane from A?

    asked on April 24, 2015
  9. Physics

    Suppose you walk 18.0m straight west and then 25.0 m straight north. How far are you from your starting point and what is the compass direction of a line connecting your starting point to your final position>

    asked on June 11, 2013
  10. physics

    The radius of a roll of paper is 7.6 cm and its moment of inertia is I = 2.9 × 10^3 kg·m2. A force of 3.2 N is exerted on the end of the roll for 1.3 s, but the paper does not tear so it begins to unroll. A constant friction torque of 0.11 m·N is

    asked on May 8, 2016
  11. Biology

    A farmer grew only one type of onion. All of the onion plants died from the same disease. What can be said of this onion plant population. A. Only few plants were resistant to the disease B. All of the onion plants were resistant to the disease. C. The

    asked on September 30, 2017
  12. math

    Juan lives 2.5 miles to the park. It took him 12 minutes to ride his bike to the park. What was his average speed in miles per hour

    asked on November 29, 2014
  13. Chemistry

    A solution containing a mixture of 0.0381 M potassium chromate (K2CrO4) and 0.0769 M sodium oxalate (Na2C2O4) was titrated with a solution of barium chloride (BaCl2) for the purpose of separating CrO42– and C2O42– by precipitation with the Ba2 cation.

    asked on October 15, 2015
  14. math

    One week Trey rented 4 DVDs and 2 video games for $18. The next week he rented 2 DVDs and 1 video game for $9. Find the rental costs for each video game and DVD.

    asked on January 22, 2014
  15. Math

    1. Given the function rule f(x)= x^2 - 3x + 2, what is the output of f(-2)? A. 12 B. 4 C. -8 D. 0 2. Suppose you earn $10 each hour you babysit. Which function describes the relationship between your total earnings E and the number of hours you babysit, h?

    asked on May 4, 2015

    Briefly describe Poe’s requirements for the short story genre.

    asked on October 2, 2012
  17. Physics

    A 18 kg child slides down a 4.0 m-high playground slide. She starts from rest, and her speed at the bottom is 2.8 m/s. What is the change in the thermal energy of the slide and the seat of her pants?

    asked on May 14, 2011
  18. differential equation

    in the theory of learning the rate at which the subject is memorized is assumed to be directly proportional to the amount left to be memorized. also the rate at which the subject is forgotten is directly proportional to the amount memorized in their time

    asked on October 26, 2014
  19. science

    4. When a fan is turned on, it changes electrical energy into ______ energy. A. motion B. magnetic C. gravitational D. electromagnet 5. An experiment discovered that a particular material was a poor conductor of electricity. This material would most likely

    asked on April 16, 2015
  20. physics

    While you sleep, your body is using energy at a rate of 77 W. How many food calories are used during an eight hour period? One food calorie is equal to 4186 joules.

    asked on November 6, 2011
  21. Chemistry

    Write the reversible equation for the esterification and hydrolysis of glyceryl ethanoate

    asked on February 7, 2011
  22. Science last question

    Which of the following boxes would have the strongest gravitational pull on a third object positioned at an equal distance from both boxes? Box A: 100 g Box B: 10,000 g A. box b because it has more mass B. box a because it has less mass C. box a because it

    asked on April 16, 2015
  23. Physics

    Suppose the stone is thrown at an angle of 32.0° below the horizontal from the same building (h = 49.0 m) as in the example above. If it strikes the ground 69.3 m away, find the following. (Hint: For part (a), use the equation for the x-displacement to

    asked on May 17, 2011
  24. Physics

    Suppose you are standing in the aisle of a bus traveling along a straight road at 100km/h, and you hold a pencil still above your head. Then relative to the bus, the velocity of the pencil is 0km/h, and relative to the road, the pencil has a horizontal

    asked on November 10, 2010
  25. Math

    A boat, whose speed in still water is 2.80m/s , must cross a 280m wide river and arrive at a point 120m upstream from where it starts. To do so, the pilot must head the boat at a 45.0 degrees upstream angle. What is the speed of the river's current?

    asked on September 12, 2009
  26. Physics

    A car is being driven along a country road on a dark and rainy night at a speed of 20 m/s. The section of road is horizontal and straight. The driver sees that a tree has fallen and covered the road ahead. Panicking, the driver locks the breaks at a

    asked on November 6, 2011
  27. Chemistry

    The SI unit of length is a meter, which is defined as the length equal to 1,650,763.73 wavelengths of light emitted by a particular energy transition in krypton atoms. Calculate the frequency of the light to three significant figures.

    asked on October 31, 2012
  28. L.A

    The word propose has been borrowed from the Latin propositus meaning, "set forth" in which sentence is the word propose used correctly A. he felt that propose would do more harm than good B. when you set up a propose, be certain it is correct. C. the

    asked on May 5, 2015
  29. algebra

    a cheetah ran 300 feet in 2.92 seconds. What was the cheetahs average speed in miles per hour? Please show steps.THANKS!!

    asked on May 30, 2016
  30. Physics 2

    The drawing shows four insulated wires overlapping one another, forming a square with 0.050-m sides. All four wires are much longer than the sides of the square. The net magnetic field at the center of the square is 91.5 µT. Calculate the current I.

    asked on February 12, 2012
  31. physics

    A dam blocks the passage of a river and generates electricity. Approximately 57,000 kg of water fall each second through a height of 19 m. If one half of the gravitational potential energy of the water were converted to electrical energy, how much power

    asked on November 6, 2011
  32. Chemistry

    How would you find the pH of a solution prepared by mixing 50 mL of 0.125 M KOH with o.050 L of 0.125 M HCl?

    asked on April 16, 2012
  33. maths

    Simplify :1/1-cosx +1/1+cos x

    asked on June 15, 2018
  34. Chemistry

    How is the atomic structure of a Copper differ from Germanium, Silicon and Gallium Arsenide ? Tnx :))

    asked on July 4, 2014
  35. Physics

    The helicopter view in the figure below shows two people pulling on a stubborn mule. Assume that F1 is 130 N, and F2 is 65 N. The forces are measured in units of newtons (N). (a) Find the single force that is equivalent to the two forces shown. In both

    asked on May 18, 2011
  36. Physics 2

    The average intensity of light emerging from a polarizing sheet is 0.807 W/m2, and the average intensity of the horizontally polarized light incident on the sheet is 0.972 W/m2. Determine the angle that the transmission axis of the polarizing sheet makes

    asked on April 5, 2012
  37. PHysics

    a 15g bullet strikes and becomes embedded in a 1.1kg block of wood placed on a surface in front of the gun. if the coefficient of kinetic friction between the block and the surface is 0.25 and the impact drives the block a distance of 95m before it comes

    asked on December 6, 2008
  38. MATH Fractions

    how can you tell if an equal share is more than one whole?

    asked on January 24, 2014
  39. Physics

    A simple pendulum is swinging back and forth through a small angle, its motion repeating every 1.08 s. How much longer should the pendulum be made in order to increase its period by 0.31 s?

    asked on December 1, 2011
  40. trig

    Prove that tan4x=(4tanx-tan^3x)/(1-6tan^2 x+tan^4 x) *note: the exponents are just numbers. there are no variables in the exponents.

    asked on March 27, 2010
  41. PHYSICS!!!

    A skier traveling 12.0 m/s reaches the foot of a steady upward 18 degree incline and glides 12.2 m up along this slope before coming to rest. What was the average coefficient of friction?

    asked on April 4, 2016
  42. Math

    Bernadette cuts a piece of fabric into four pieces of the same length. After she cuts off 3 feet from one of the pieces, she is left with a piece that is 2 feet long. What is the length of the piece of a fabric she started with?

    asked on August 11, 2016
  43. Math

    a 25.00 gram sample is placed in a graduated cylinder and then the cylinder is filled to the 50.0 mL mark with benzene. the mass of benzene and solid together is 58.80 gram. assuming that the solid is insoluble in benzene and that the density of benzene is

    asked on August 23, 2010
  44. L.A

    In the following sentence, what word does the participial phrase modify? Everyone in the annex heard her screaming loudly. A. Everyone B. annex C. heard*** D. her Please check

    asked on April 12, 2015
  45. college chemistry

    Please be specific! Briefly explain whether each if the following procedural errors would result in a high, low, or an unchanged calculated mass of Ca2+ in the analyzed tablet. a)a student had difficulty decanting the supernatant solution from the test

    asked on October 15, 2012
  46. Chemistry

    How to prepare 1L of 96% v/v ethanol from 99% v/v ethanol? Can you show me the calculation steps?Thanks.

    asked on February 15, 2012
  47. Math

    Gymnast Clothing manufactures expensive hockey jerseys for sale to college bookstores in runs of up to 250. Its cost (in dollars) for a run of x hockey jerseys is C(x) = 2500 + 10x + 0.2^x2(0 ≤ x ≤ 250) Gymnast Clothing sells the jerseys at $105 each.

    asked on February 9, 2012
  48. Art

    How did plastic revolutionize the art of furniture design? A.) Designers could create works that were soft and colorful. B.) Designers could create works that were sturdy and moldable. C.) Designers could create works that were patterned and sturdy. D.)

    asked on May 12, 2015
  49. chemistry

    A compound,KBrOx, is analyzed and found to contain 52.92% Br by mass. What is the value of x?

    asked on December 6, 2010
  50. Science

    Homw many grams of copper sulfate pentahydrate (CuSo4 5H2O) would you heat to produce 29.8 g of water?

    asked on March 9, 2010
  51. algebra

    Write a compound inequality that the graph could represent. Please exlain and show if you can. Thank you...

    asked on May 30, 2016
  52. physics

    A flatbed truck is carrying a heavy crate. The coefficient of static friction between the crate and the bed of the truck is 0.66.What is the maximum rate at which the driver can decelerate and still avoid having the crate slide against the cab of the

    asked on October 15, 2010
  53. Math

    A man walks a certain distance at a certain speed. If he walks 1/2 an hour faster than his usual speed, he will take one hour less to reach his destination. But if he walks 1 km an hour slower than his usual speed, he will take 3hours more to reach his

    asked on July 5, 2007
  54. physics

    1)An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of spring is? 2)A force of 100N stretches an elastic spring to a total of 20cm. If an additional force of

    asked on April 9, 2013
  55. Math

    Find the volume of a spherical cone in a sphere of radius 17 cm. if the radius of its zone is 8 cm.

    asked on May 22, 2018
  56. Math

    The vertices of triangle ABC are A(2,2) B(5,2) and C(5,7). Find the vertices of the image if triangle ABC is (A) translated 3 units to the left and 2 units downward (B) reflected about the y-axis (C) rotated 90 degrees about the origin in a clockwise

    asked on August 12, 2019
  57. Physics

    At an intersection a car of mass 900kg traveling east collides with a pick up truck of mass 1800kg that is traveling North. Two vehicles stick together as a result of the collision, and after collision, the wreckage is sliding at 16m/sec in the direction

    asked on March 31, 2015
  58. Science-Chemistry

    1)Fill in the blanks. In a liquid, particles are _____arranged. They move about in ____ directions and slide over one another. Can I say "irregularly" & "any" as the answers? I know "random directions" is better, but can we accept "any directions"? 2) When

    asked on January 26, 2009
  59. Biology

    Scientists observe a newly established population of sexually reproducing plants growing on the shore of a small island. An observable trait of the plant has two possible phenotypes. It is determined by a single gene, with the dominant allele having

    asked on October 3, 2012
  60. physics

    A thin uniform rod is rotating at an angular velocity of 6.7 rad/s about an axis that is perpendicular to the rod at its center. As the drawing indicates, the rod is hinged at two places, one-quarter of the length from each end. Without the aid of external

    asked on November 22, 2011
  61. physics

    an airplane flies 200km from city a to city b east,then 200km south from city b to c,and finally 100km northwest to city far is it from city a to city what direction must the airplane head to return directly to city a from city d?

    asked on December 9, 2014
  62. physics

    A balloon rubbed against denim gains a charge of -9 µC. What is the electric force between the balloon and the denim when the two are separated by a distance of 5 cm.

    asked on March 1, 2012
  63. college chemistry

    a student determined the Ca^2+ ion content of a 100mL sample of calcium-fortified orange juice. After adding 2.0M HCl solution to the sample, the student filtered the juice to remove the pulp and other particulate matter. Then the tudent added Na2CO3

    asked on October 8, 2012
  64. L.A

    In which sentence is the meaning of the word blackmail best represented? A. they hoped that her envy would not cause blackmail B. they reached for the phone, eager to hear the blackmail news. C. they were afraid that blackmail would lead to more demands

    asked on April 12, 2015
  65. chemistry

    What does 1.5 fold dilution and 2.5 fold dilution mean?

    asked on July 26, 2012
  66. physics

    A carton lies on a plane tilted at an angle theta 29 degrees to the horizontal, with a friction of uk .12.If the carton starts from rest 7.90 up the plane from its base, what will be the carton's speed when it reaches the bottom of the incline?

    asked on October 15, 2010
  67. Chemistry

    I have a homework question that says: "Three resonance structures of the following anion are possible. One is given below, but it is incomplete. Complete the given structure by adding non-bonding electrons and formal charges. Draw the two remaining

    asked on September 8, 2016
  68. Statistics

    The marks of 100 students in an examination are normally distributed with mean of 25 marks and a standard deviation of 10 marks. (a) Given that the pass mark is 20, estimate the number of students who passed the examination. (b) If 5.59% of the students

    asked on October 23, 2014
  69. Math

    The boys mixed 10 gallons of 20% pure lemon juice mix and 10 gallons of the 70% pure lemon juice mix , because they wanted 20 gallons of lemonade at a 40%lemon juice mixture. They thought that because 40% was almost halfway between 20% and 70%,they should

    asked on August 14, 2017
  70. Chemistry

    I have a question about incomplete combustions. I think that you can have carbon monoxide, carbon dioxide, water and carbon or some combination of these in the products of incomplete combustions. Is this right? For Pentane, would it be correct to show one

    asked on October 7, 2009
  71. electric circuit

    Some types of fuses used to protect electric meters have resistances of several ohms. Is this objectionable (a) in ammeter circuits and (b) in voltmeter circuits? Why?

    asked on July 29, 2014
  72. math

    Sunae's group of close friends are going to fifth grade in September. All are going to Belleview Elementary and their homerooms will be rooms 12, 14, or 16. All of her friends but 4 are going to room 12, all but 4 are going to room 14, and all but 4 are

    asked on May 28, 2011
  73. 11th grade

    4. The use of technology such as telephones and computers means that money exchanges and other financial transactions can be a. based on the U.S. dollar all over the world. b. converted to prices in any currency. c. made instantaneously. d.sensitive to

    asked on December 21, 2010
  74. Biology

    1.Which of the following accurately describes the relationship between cyanobacteria and halophiles? A.Cyanobacteria are photosynthetic, which suggests they existed before halophiles. b.Halophiles can survive in extreme conditions, which suggests they are

    asked on January 15, 2013
  75. Physics

    In a physics lab experiment, a spring clamped to the table shoots a 18 g ball horizontally. When the spring is compressed 20 cm, the ball travels horizontally 4.9 m and lands on the floor 1.3 m below the point at which it left the spring. What is the

    asked on May 17, 2011
  76. Physics

    A race car moves such that its position fits the relationship x=(5m/s) t + (.75m/s3 ) t3 where x is measured in meters and t in seconds. A)Plot a graph of position versus time. B)Determine the instantaneous velocity at t=4s using time intervals of .4s,

    asked on September 2, 2007
  77. Chemistry

    Consider the combustion of propane (C3H8) in the presence of oxygen: C3H8+5O2 => 3CO2+4H2O How many grams of O2 are required to react completely with 3 moles of propane?

    asked on November 11, 2010
  78. Math 1320

    When I was considering what to do with my $10,000 Lottery winnings, my broker suggested I invest half of it in gold, the value of which was growing by 12% per year, and the other half in CDs, which were yielding 5% per year, compounded every 6 months.

    asked on October 20, 2010
  79. Chemistry

    I have liquid concentrated HCl (37%w/w) To prepare 100ml of 10g/L HCl as a solvent medium, is it acceptable to just weigh 1g of liquid conc HCl and dilute to 100ml with water? What volume of conc HCl should we use to make 100ml of 10g/L HCl?

    asked on May 28, 2012
  80. physics

    A woman rides a carnival Ferris wheel at radius 16 m, completing 4.2 turns about its horizontal axis every minute. What are (a) the period of the motion, and the magnitude of her centripetal acceleration at (b) the highest point and (c) the lowest point?

    asked on September 19, 2011
  81. Science

    which property of nutrients shows that they are a type of matter? A. Nutrients are colorful B.Nutrients can do work C. Nutrients contain energy D. Nutrients have mass

    asked on March 2, 2014
  82. Science

    Scientific investigations involve many steps and processes. Which characteristics define a laboratory experiment? A. hypothesis, models, and calculations B. test variables, data, and uncontrolled conditions C. data, conclusions, and unregulated environment

    asked on October 20, 2013
  83. Physics

    Electric charge charge is distributed uniformly along a thin rod of length "a", with total charge Q. Take the potential to be zero at infinity find the potential at P. If z>>a, what would be the potential at p? From potential find the electric field at

    asked on May 22, 2013
  84. Math

    How do you find the surface area of a rectangular prism though? I have (I think) the same question. 15mm = length | 3 mm = width | 4 mm = height. How do you solve it?

    asked on April 18, 2018
  85. Math

    If 8,x,y,z and 20 are in A.P.find x,y,z

    asked on March 19, 2016
  86. Math

    In a hardware store the ratio of shovels to rakes is 3:5. If there are 10 more rakes than shovels, how many rakes are there in the hardware store? I know shovels = r-10 but don't know where to go from there?

    asked on June 30, 2014
  87. College Chemistry

    how would you prepare 175.0ml of .150 m agno3 solution starting with pure agno3

    asked on September 27, 2012
  88. Stats/math

    The deciles of any distribution are the 10th, 20th,...90th percentiles. The first and last deciles are the 10th and 90th percentiles, respectively. What are the first and last deciles of the standard Normal distribution? HOw would i solve this? thank you

    asked on September 14, 2013
  89. physics

    Part B Piles of snow on slippery roofs can become dangerous projectiles as they melt. Consider a chunk of snow at the ridge of a roof with a pitch of 21. As the snow begins to melt, the coefficient of static friction decreases and the snow eventually

    asked on October 15, 2010
  90. AP chemistry

    Sodium azide, the explosive chemical used in atuomobile airbags, is made by the following reactions: NaNO3 + 3NaNH2 => NaN3 + 3NaOH+ NH3 If you combine 15,0 g of NaNO3 (85 g/mol) with 15.0 g of NaNH3, what mass of NaN3 is produced?

    asked on September 15, 2009
  91. math

    Rectangles ABCD and PQRS have the same length-to-width ratio. Calculate the length of rectangle PQRS rectangle abcd: L: 30 cm W: 18 cm rectangle pqrs: L: ? W: 27 cm

    asked on October 18, 2016
  92. Physics

    Two charges, -15 and +4.5 µC, are fixed in place and separated by 2.8 m. At what spot along a line through the charges is the net electric field zero? What would be the force on a charge of +1 µC placed at this spot?

    asked on January 23, 2012
  93. Chem

    How would the pressure of a gas change if suddenly the intermolecular forces were repulsive rather than attractive?

    asked on December 6, 2016
  94. math

    Students noticed that the path of water from a water fountain seemed to form a parabolic arc. They set a flat surface at the level of the water spout and measured the maximum height of the water from the flat surface as 6 inches and the distance from the

    asked on November 14, 2016
  95. college physics

    An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a magnitude of 6.5 N; a second force has a magnitude of 3.9 N and points in the negative y direction. Find the direction

    asked on September 24, 2012
  96. Math Limits

    lim(as p-->4) of (p^3 - 64) / (4-p) My work: p^3 - 64 = (p-4)(p^2 + 4p + 16) 4 - p = -(p-4) ((p-4)(p^2 + 4p + 16)) / -(p-4) p-4 cancels out -(p^2 + 4p + 16) -((4)^2 + 4(4) + 16) -(16 + 16 + 16) - 48 Is this right?

    asked on October 17, 2016
  97. Math

    Zachary saved x nickels and y dimes last month. Lily saved x nickels and 2y dimes. Lily saved $2 more than Zachary and the total number of her dimes is 4 times the total number of her nickels. (a) How much coins does Zachary have? (b) How much did Lily

    asked on October 6, 2011
  98. Chemistry

    during a molar volume of oxygen experiment indicate how each of the following errors would affect (increase, decrease, or no change) your calculated value for the molar volume of O2 at STP. 1.) Your sample was not completely decomposed. 2.) After you

    asked on March 3, 2012
  99. maths

    the approxiamate distance between two villiages is given as 11km. The actual distance is 10.7km. Find the diffrence in metres

    asked on December 5, 2018
  100. Chemistry

    A compound of the element A and oxygen has a mole ratio of A:O=2:3. If 8.0 grams of the oxide contains 2.4 grams of the oxygen, a. What is the atomic weight of A? b. What is the weight of one mole of the oxide? c. What theoretical weight of the oxide is

    asked on December 13, 2011


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