Most popular questions and responses by Anne
  1. 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
  2. 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
  3. 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
  4. 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
  5. 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

    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

    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
  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. Chemistry

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

    asked on February 7, 2011
  10. 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
  11. 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
  12. 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

    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
  14. 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
  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
  16. 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
  17. 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

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

    asked on October 2, 2012
  19. 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
  20. 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
  21. 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
  22. 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
  23. MATH Fractions

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

    asked on January 24, 2014
  24. maths

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

    asked on June 15, 2018
  25. 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
  26. 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
  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. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. Chemistry

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

    asked on July 4, 2014
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. algebra

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

    asked on May 30, 2016
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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
  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. 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
  49. 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
  50. 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
  51. 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
  52. 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
  53. 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
  54. 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
  55. Government

    The passage of the Civil War amendments—the Thirteenth, Fourteenth, and Fifteenth Amendments—did not end discrimination of African Americans. However, the Supreme Court has relied on these amendments in deciding civil rights cases such as the case of

    asked on January 5, 2013
  56. chemistry

    What does 1.5 fold dilution and 2.5 fold dilution mean?

    asked on July 26, 2012
  57. 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
  58. 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
  59. 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
  60. 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
  61. 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
  62. 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
  63. 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
  64. 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
  65. Calc: Derivatives

    Find second derivative (d^2y/dx^2) of (-2x^2 + 4xy = 2x/y)

    asked on September 27, 2018
  66. 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
  67. 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
  68. 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
  69. Physics

    Assume that the earth is a uniform sphere and that its path around the sun is circular. a) Calculate the kinetic energy that the earth has because of its rotation about its own axis. For comparison, the total energy used in the United States in one year is

    asked on November 22, 2011
  70. 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
  71. 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
  72. 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
  73. Chemistry

    A 1.00-L solution saturated at 25°C with calcium oxalate (CaC2O4) contains 0.0061 g of CaC2O4. The solubility constant (Ksp) for this salt is [CaC2O4=128.09 g/mol]

    asked on April 16, 2012
  74. 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
  75. Chem

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

    asked on December 6, 2016
  76. Physics

    A 63.0-kg bungee jumper is standing on a tall platform (h0 = 45.8 m). The bungee cord has an unstrained length of L0 = 9.18 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.2 N/m. The jumper falls from rest, and it is

    asked on November 30, 2011
  77. Chemistry

    IF 24.5 mL of the .10M NaOH solutino is required to reach the endpoint in a titration with an unknown monoprotic acid, how many moles of the acid were present?

    asked on February 19, 2018
  78. Finance

    National Health Corporation (NHC) has a cumulative preferred stock issue outstanding, which has a stated annual dividend of $8 per share. The company has been losing money and has not paid preferred dividends for the last five years. There are $350,000

    asked on October 13, 2014
  79. Physics

    Two point charges are fixed on the y axis: a negative point charge q1 = -26 µC at y1 = +0.21 m and a positive point charge q2 at y2 = +0.38 m. A third point charge q = +8.5 µC is fixed at the origin. The net electrostatic force exerted on the charge q by

    asked on January 24, 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. Physics

    An electric heater the temperature of 120g of water in a thin light vessel through 10k in 2 minutes, when placed in 70g of water contained in a metal vessel of mass 0.55kg the temperature rises through 9k in the same time. Calculate from the above The heat

    asked on February 21, 2017
  82. 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
  83. 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
  84. Physics

    A vertical spring with a spring constant of 400 N/m is mounted on the floor. From directly above the spring, which is unstrained, a 0.30 kg block is dropped from rest. It collides with and sticks to the spring, which is compressed by 2.7 cm in bringing the

    asked on November 30, 2011
  85. Physics

    A bungee jumper, whose mass is 83 kg, jumps from a tall platform. After reaching his lowest point, he continues to oscillate up and down, reaching the low point two more times in 9.7 s. Ignoring air resistance and assuming that the bungee cord is an ideal

    asked on November 30, 2011
  86. Chemistry - 1st Yr College Level

    The corrosion of iron can be thought of as an electrochemical cell reaction. Calculate the voltage difference between two points of corroding iron differing only in their partial pressures of oxygen: 0.20 atm of oxygen at one point and 0.0010 atm of oxygen

    asked on December 11, 2007
  87. maths

    proof that tanx + secx -1/tanx - secx+1 = 1+sinx/cosx

    asked on June 26, 2018
  88. statistics

    A population has an average of 150,000 with a standard deviation of 27,000. A random sample of 81 items is chosen. What is the standard error?

    asked on March 20, 2018
  89. 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
  90. Physics

    Help!! I would greatly appreciate help with this question. Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56s.

    asked on December 4, 2014
  91. 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
  92. 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
  93. 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
  94. college

    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
  95. physics

    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. What is the minimum value of the coefficient of static friction that will keep the snow from sliding down in

    asked on October 15, 2010
  96. Math

    A sphere and a right cylinder have the same radius and volume. The cylinder has a height of 3 inches. Find the radius.

    asked on February 21, 2019
  97. Algebra

    Question 1 of 20 5.0 Points Graph the set of points. Which model is most appropriate for the set? (- 1, 20), (0, 10), (1, 5), (2, 2.5) what would graph look like?

    asked on June 1, 2016
  98. art only 2 questionssss

    In an effort to help a student understand the concept of shading, which teaching strategy could an educator use to help someone who learns best through hands-on activities? A. explain shading techniques out loud B. write shading techniques on the board. C.

    asked on April 12, 2015
  99. College Chemistry

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

    asked on September 27, 2012
  100. Chemistry

    Is 20.0 mL of 1.0M CH3COOH and 10.0mL of 1.0 M NaOH a buffer solution of 3?

    asked on May 4, 2010


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