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Questions Asked on
November 26, 2014

  1. INTRODUCTION TO PHYSICS

    Question A mixture of alcohol and water has the density 750 kg m 3.calculate the ratio in the mixture of alcohol to water by i.mass ii.volume

    asked by "CRYING"HELP PLEASE!!!,THIS CAN SAVE A SMILE

  2. phy101

    a set of function attached to the bottom of a box which is then measured and found have a mass6kg the box is placed on the floor and student of the physics used a brief horizontal force of 150 newton to push the-box sideway-after which the roll ac cross

    asked by aasma

  3. Neuroscience

    If you move your eyes to the right, the receptive fields of your neurons will shift in the visual world to the 1.left 2.right 3.up

    asked by qwerty

  4. Neuroscience

    Consider two ganglion cells with cell bodies that are adjacent to each other in the retina. Their receptive fields are 1. overlapping 2. border each other 3. nearby but do not touch

    asked by qwerty

  5. Neuroscience

    The video compared a retinal neuron to a spy looking through a keyhole at the world. The keyhole is analogous to the 1. lens of the eye 2. pupil of the eye 3. receptive field

    asked by qwerty

  7. Neuroscience

    You continue to record the spikes of a ganglion cell. Even in total darkness, there is some nonzero rate of spiking (sometimes called “spontaneous” spiking). When you shine light at a particular point (let’s call it Q) in the retina, the rate of

    asked by qwerty

  8. chem

    I titrated a 250mg tablet to see if it really had 250mg of scorbutic acid (H2C6O6) a diuretic acid, in it. I took a 250mg tablet, grounded it up and found it took 35.87ml of .0505 M NaOH to neutralize it 1. How many moles of NaOH is it? 35.87ml

    asked by mark

  9. MLA style

    If i have to write a 1500 word research paper on MLA style. Can the format be like this : 100 word Introduction 400 word 1st paragraph 400 word 2nd paragraph 400 word 3rd paragraph and finally 100 word Conclusion. Is this good enough. and I am gonna use 9

    asked by HAQUE

  10. physics

    a projectile is fired from the vertical tube mounted on the vehicle which is travelling at the constant speed of 30kph. the projectile leaves the tube with a velocity of 20m/s relative to the tube.neglecting air resistance.

    asked by Anonymous

  11. math

    of 10 girls in a class, 3 speak French.If two girls are chosen at random, what is the probability that both speak french

    asked by liezly

  12. Chemistry

    What is the formula for copper chloride dihydrate ? And can 1 get more info on it plz (like an overall overview) ? Tnx

    asked by Antonie

  13. Math

    Three equivalent ratios for 5/6

    asked by Makenzey

  14. STATS Math

    Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) describe the sampling

    asked by LADO

  15. Stats Math 2

    Exit polling is a popular technique used to determine the outcome of an election prior to results being tallied. Suppose a referendum to increase funding for education is on a ballot in a large town (voting population over 100,000). An exit poll of 300

    asked by LADO

  16. Stats Math 3

    Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) Describe the sampling

    asked by LADO

  18. Statistics

    For the following set of scores, fill in the cells. The mean is 70 and the standard deviation is 8. Raw score Z score 68.0 ? ? –1.6 82.0 ? ? 1.8 69.0 ? ? –0.5 85.0 ? ? 1.7 72.0 ?

    asked by KIM

  19. analytic

    One line passes through the points (1,9) and (2,6), and another line passes through (3,3) and (-1,5). Determine the acute angle between the two lines.

    asked by Anonymous

  20. analytic

    One line passes through the points (1,9) and (2,6), and another line passes through (3,3) and (-1,5). Determine the acute angle between the two lines.

    asked by Anonymous

  21. CHEMISTRY HELP

    how can analytical chemistry help on different fields of sciences and technology?

    asked by Ella

  22. chemistry

    can you please give me some practical applications of qualitative chem and quantitative chem...

    asked by Kara

  23. CHEMISTRY

    how can different steps in the analytical process help in solving probs in Analytical Chemistry

    asked by Patrick

  24. chem

    what are the other practical applications of Analytcal chem on being a medical technologist?

    asked by Arielle

  25. Statistics 1 plaese give answers to below question

    Suppose a simple random sample of size n=150 is obtained from a population whose size is N=20,000 and whose population proportion with a specified characteristic is p=0.8. Please answer questions (1) through (5) below. (1) Describe the sampling

    asked by LADO

  26. CHEMISTRY

    write oxidation and reduction halfreaction of 3CuO+2NH3>3Cu+N2+3H2O

    asked by MACHETE

  27. Statistics 2 please give answers to the below ques

    According to a study conducted by a statistical organization, the proportion of americans who are satisfied with the way things are going in their lives is 0.82. Suppose that a random sample of 105 Americans is obtained. (Please answer the below and round

    asked by LADO

  29. Calculus

    solve the differential equation dy / dx = 11x^2y^2 with the condition that y(0) = 4 The solution to the equation is y =

    asked by Anonymous

  30. Algebra

    A community college campus plans to construct a rectangular parking lot on land bordered on one side by a highway. There are 640 feet of fencing available to fend the other three sides. Let x represent the length of each of the two parallel sides of

    asked by Shannon

  31. english

    The old fisherman floated on the Black Sea, boat bobbing from side to side as a frigid wind sliced through his threadbare sweater. Though the fisherman and his wife were struggling to survive without much money, he thought happily of the meager but

    asked by 2phoneeeeee

  32. physics

    Using sidereal navigation, a pilot flies due south for one hour then due north one hour and lands about 180 miles west of where he started. At what point on Earth is he?

    asked by JohnO'Brien

  33. math

    the yearbook club is having a bake sale to raise money for the senior class. LArge cupcakes are sold for 1.25 and small cupcakes are .75. If 105 cupcakes were sold for a total amount of 109.75, how many large cupcakes did the yearbook club sell?

    asked by Help

  34. math

    8,18,28,38,48 what is the next term? i came up with 10 am i correct? is this consider arithmetic or geometric?

    asked by angela

  35. math

    conver the numeral to a numeral in base 10 1101 basetwo can some one plz help .

    asked by Michelle

  36. physics

    a man steps out of a rowboat into a dock. The man has a mass of 80 kg and moves forward with a velocity of 1.5 m/s. If the boat has a mass of 120 kg. and was initially at rest, what is its final velocity?

    asked by Vivian

  37. math!!

    5^6 * 5^3

    asked by Michelle

  38. MATHAMATICS

    IN A GP THE 5TH AND 8TH IS 24 AND 72 FIND THE 6TERM

    asked by Anonymous

  40. Environmental Science

    what did Thomas Malthus believe

    asked by Anonymous

  41. environmental Science

    the entire area of land that a river drains is called

    asked by Anonymous

  42. MATHEMATICS

    IN A GP THE 5TH AND 8TH IS 24 AND 72 FIND THE 6TERM

    asked by Anonymous

  43. term paper

    can you check my term paper

    asked by Reina Bonilla

  44. adult education

    criticism of the information processing approach is that it.. a. doesn't form a comprehensive theory b. lacks scientific research c. focuses on creativity and imagination, while ignoring other mental processes. d. views children a blank slates

    asked by Anonymous

  45. MATHEMATICS

    IN A GP THE 5TH AND 8TH IS 24 AND 72 FIND THE 6TH

    asked by Anonymous

  46. Math

    A ball is thrown straight up from a bridge over a river and falls into the water. The height, h, in meters, of the ball above the water t seconds after being thrown is approximately modeled by the relation h=-5t^2+10t+35. Can you please help me ! Show your

    asked by Alex

  47. Coordinate Geometry (Algebra 1)

    Line segment RS is perpendicular to line segment PQ, and the coordinates are R(4, -5), S(-8, 4), P(0, 6), and Q(-3, y). What is the value of y?

    asked by Kimora

  48. Science

    What volume of 0.050M sodium hydroxide is needed to react with 25cm3 of 0.068M ethanoic acid?

    asked by Connor

  49. Math--1 question

    Find the mean, median, mode, and range of the data: 32, 34, 30, 35, 33, 31, 54. If necessary, round to the nearest tenth. Show your work.

    asked by Anonymous

  51. chem please help drbob222

    What will be the result of a reaction if its enthalpy change is positive, its entropy change is negative and Gibbs free energy is positive? A. Spontaneous, if the temperature is high B. Nonspontaneous, if the temperature is low C. Always spontaneous D.

    asked by Morgan

  52. chem please help

    If the ΔH for H2O(l) → H2O(s) is -6.01 kJ, then what is the ΔH for 2H2O(s) → 2H2O(l)? A. -12.02 kJ B. 6.01 kJ C. -6.01 kJ D. 12.02 kJ I think d.

    asked by Morgan

  53. Chem please help

    What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules

    asked by Morgan

  54. math

    Scenario 1) You and your friend enjoy riding your bicycles. Today is a beautiful sunny day, so the two of you are taking a long ride out in the country side. Leaving your home in Sunshine, you ride 6 miles due west to the town of Happyville, where you turn

    asked by Anonymous

  55. chem please help

    At temperatures above 0°C, what is the sign of the change in free energy for the conversion of liquid water to ice? A. Positive B. Zero C. Negative D. Not known

    asked by Morgan

  56. chem please help

    What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules Do not

    asked by Morgan

  57. Chemistry

    1. Write a balanced molecular equation for the reaction of solid AgNO3 with aqueous NaCl. Be sure to include the correct number of coefficients and the state of the species (aq, s, l or g). 2. Write the total ionic equation for this reaction, including all

    asked by Jess

  58. Chemistry

    please help! I don't understand any of this. Using the Solubility Rules, write the balanced molecular, total ionic, and net ionic equations (including physical states) for the following: Hints: There is no such thing as an Na3+. Na is in group 1A, so you

    asked by Kate

  59. Math

    Peter has money in two savings accounts. One rate is 9% and the other is 11%. If he has $400 more in the 11% account and the total interest is $117, how much is invested in each savings account?

    asked by Sydney

  60. Chem

    if a person inhales 0.1 mol air per breath, and the pressure is 92kpa and body temp is 37 degrees celcius what is the maximum volume of air this person can inhale

    asked by Anonymous

  62. Math

    Laura has $80 saved for a new laptop. This is 20% of the total amount she needs for the laptop. How much does the new laptop cost?

    asked by Amy

  63. MATHEMATICS

    IN A GP THE 5TH AND THE 8TH IS 24 AND 72 FIND THE 6TH

    asked by Anonymous

  64. English

    I have to write a letter to scrooge from belle but am stuck please help it was after they split up

    asked by Angela

  65. gen chem

    use the rydberg equation to calculate the wavelength in A of the photon absorbed when a hydrogen atom undergoes a transition from n=7 to n=9

    asked by noel

  66. chemistry

    State the number of valence electrons for an iron(II) ion in an ionic bond.

    asked by McKenzie

  67. Math

    What is the first step in solving the equation 3/4 divided by 2/3

    asked by Amy

  68. Biology

    In humans, the allele for brown eyes is dominant to the allele for blue eyes. If a man with blue eyes and a woman with brown eyes who is homozygous for eye color have children, what is the probability of having a child with blue eyes? Here are the choices:

    asked by Tatiana

  69. math

    Show how to make one addend the next ten number. complete the new addition sentence. 6) 18+3=___ ___+___=___ 7) 27+24=___ ___+___=___

    asked by mathhheee

  70. Spanish

    Hola Sra. This one is a bit long. I hope they are correct. Part I Los pronombres relativos. Complete las oraciones siguientes en una manera lógica. Juan es el hombre a quien… Juan es el hombre a quien necesito dar el dinero. 1. Es un problema que… Es

    asked by Anna

  71. Bus. Math

    The Soft Step Floor Co. Purchases carpeting for $5.12 per square yard and marks it up 55% based on the selling price. What is the selling price per square yard? Round to the nearest cent

    asked by Wanda

  73. math

    9 of the 30 children in a class had brown eyes what fraction of the children have brown eyes

    asked by mark

  74. physics

    During World War I, the Germans had a gun called Big Bertha that was used to shell Paris. The shell had an initial speed of 2.39 km/s at an initial inclination of 49.6 ◦ to the horizontal. The acceleration of gravity is 9.8 m/s 2 . How far away did the

    asked by Khadija

  75. chemistry

    What is the balanced chemical equation Shampoo? please i need a help ASAP!

    asked by krisha

  76. chemistry

    What is the balanced chemical equation of Shampoo? And what is the chemical reaction of it? Please i need a help ASAP! Thank you!

    asked by krisha

  77. Geometry

    Equilateral triangle ABC and isosceles triangle DBC share side BC. If angle BDC= 34 and BD=BC, what is the measure of angle ABD? I don't know how to solve this questions, can someone guide me through?

    asked by Ana

  78. six sigma

    If the mean value of the weight of a particular brand of dog food bag is 20.6 pounds and the standard deviation is 1.3, assume a normal distribution and calculate the percentage of bags that falls below the lower specification value of 19.7 pounds.

    asked by stansler

  79. Chemistry

    What is Gibbs free energy? A. The energy lost as heat to the surrounding molecules B. The usable energy released or absorbed by a reaction C. The energy in the form of kinetic energy in a system D. The energy contained within the bonds of molecules

    asked by Cortey

  80. Statistics

    Suppose that hours of sleep per night for single adults between 30 and 40 years of age are normally distributed with a mean of 6.7 hours and a standard deviation of 1.1 hours. What proportion of adults sleep longer than 4.5 hours per night? (Report to 3

    asked by Beth

  81. ms sue please help

    so i was checking that it wasn't plagiarized my term paper and it says it is because of the post i put earlier, are you sure its erased??

    asked by Reina Bonilla

  82. Language Arts

    from "Harriet Tubman: Conductor on the Underground Railroad" by Ann Petry. 1 That first winter in St. Catharines was a terrible one. Canada was a strange frozen land, snow everywhere, ice everywhere, and a bone-biting cold the like of which none of them

    asked by Callie

  84. Math

    Carousel Toys has rompers, wooden rocking horses for toddlers, on a 30% markdown sale for $72.09. What was the original price before markdown? Round to nearest cent

    asked by Dena

  85. Trig

    I need help setting these up. 1.) Use the parallelogram rule to find the magnitude of the resultant force for the two forces shown in the figure. round to one decimal place. Theta= 35 degree, b=98 lbs, c=55lb 2.) Find the magnitude and direction angle for

    asked by Derrick

  86. geometry

    Equilateral triangle ABC and isosceles triangle DBC share side BC. If angle BDC= 34 and BD=BC, what is the measure of angle ABD? I don't know how to solve this questions, can someone guide me through?

    asked by Ana

  87. U.S. History Help!!!!!!!

    1.How did the colonist protest British taxes? A.by monopoly B.with propaganda C.by boycotting D.by writs of assistance 2.Who wrote the Declaration of Independance? A. George Washington B. Thomas Jefferson C. John Adams D. Benjamin Franklin 3. Colonists who

    asked by callie

  88. Math

    A Sony 55" television set is selling for $1,499.99 with a savings of $1,500.00. Calculate the percent markdown after rebate for the product

    asked by Sarah

  89. AP CALC. AB

    1. Let f be the function given by f(x)=x^2+4x-8. The tangent line to the graph at x = 2 is used to approximate values of f . For what value(s) of x is the tangent line approximation twice that of f ? I: -√2 II: 1 III: √2 Select one: a. III only b. I

    asked by Rachel

  90. Microsoft Excel

    The order of precedence is very important when building formulas in Excel. Which of the following formulas will produce 778 as the result? A. =(25*(27/9)+5+309)*2 B.=25*((27/9+5)+309*2) C.=25*(27/9+5)+309*2 D. =25*27/9+5+309*2 Even understanding the basics

    asked by Kelly

  91. physics

    Assume that there is no friction between m2 and the incline, that m2 = 2.4 kg, m1 = 1.2 kg, the radius of the pulley is 0.10 m, the moment of inertia of the pulley is 4.8 kg m2, and θ = 25.0°. a) Find the combined mechanical energy of both masses the

    asked by May

  92. Physics

    The same amount of heat entering identical masses of different substances produces different temperature changes. Calculate the final temperature when 1.50 kcal of heat enters 1.25 kg of the following, originally at 22.5°C.

    asked by Nina

  93. English

    1. Mr. Gates has four sons. One lives in Chicago, and the others live in L.A. 2. Mr. Gates has four sons. One lives in Chicago, and the rest live in L.A. 3. Mr. Gates has four sons. One lives in Chicago, and the rest lives in L.A. (Which ones are correct?

    asked by rfvv

  95. Physics

    If a string is vibrating in four parts, there are points where it can be touched without disturbing its motion. Explain how many points exist

    asked by Kiki

  96. CaLC AB

    1. For f(x)=sin^(2)x and g(x)=0.5x^2 on the interval [-pi/2,pi/2], the instantaneous rate of change of f is greater than the instantaneous rate of g for which value of x? a. 0 b. 1.2 c. 0.9 d. 0.8 e. 1.5 2. if tan(x+y)=x then dy/dx=?? a. tan^2(x+y) b.

    asked by Jacke

  97. math

    What is 1/2%, I say 1/2% = 0.5%, but my mom says its 50%, am I correct.

    asked by john Dosley

  98. Chemistry

    copper is a product of the reaction that occurs when dry ammonia is passed over a sample f heated copper(2) oxide.The equation for the reaction is given: 2NH3+3CuO=3Cu+3H2O+N2 Calculate the mass of copper produced if 0.12dm^3 of nitrogen is produced at

    asked by Alyssa

  99. Us. History Help!!!

    1. The British recognized the United States as an independent nation when when they signed the A. Treaty of America B. Treaty of the United States C. Treaty of Great Britain D. Treaty of Paris 2. What American ally helped the Patriots win the war? A.

    asked by Callie

  100. Chemistry

    The reaction: H2C2O4 + CuO + Heat = ? This reaction was produced in organic elemental analysis to identify C and H. So I think CO2 is formed to react with Ca(OH)2 to giving CaCO3. Additionally was formed H2O, so I though H2 or H2O was produced. Is correct

    asked by Carlos

  101. English

    1. He looked for a chair to sit on. 2. He looked for a chair which he could sit on. 3. He looked for a chair which he would sit on. --------------------- Does #1 mean #2 or #3?

    asked by rfvv

  102. Physics

    4.82 kJ work is done by a worker pulling a crate across the deck of a ship at a constant speed of 7.82 m/s by a 453 N force. The rope is being pulled at a 37.0 degree angle to the deck. a)How far was it pulled? b)What is the friction force? c)What is the

    asked by Brad

  103. algebra

    Solve system of equations to model the problem then solve: The length of a rectangle is 7 inches more than the width. The perimeter is 34 inches. Find the length and the width of the rectangle.

    asked by Brianna

  104. Algebra

    Write a system of equations to model the problem and solve the system: The sum of two numbers is 156. What number is 28 more than the second number. What are the numbers?

    asked by Brianna

  106. Algebra

    Write a system of equations to model the problem and solve the system: Benjamin has nickels and dimes and his toy bank he has a total of 45 coins the total value of $3.60. How many coins of each kind does he have?

    asked by Brianna

  107. AP Physics

    A person stands in a stationary canoe and throws a 5.16-kg stone with a velocity of 7.75 m/s at an angle of 31.5° above the horizontal. The person and canoe have a combined mass of 105kg. Ignoring air resistance and effects of the water, find the

    asked by Kylie

  108. AP Physics

    The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires the gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.013 kg, and its velocity is +725 m/s. Her

    asked by Kylie

  109. AP Physics

    Two people are standing on a 2.2-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air, like a hovercraft. One person throws a 6.0-kg ball to the other, who catches it. The ball travels nearly horizontally.

    asked by Kylie

  110. AP Physics

    A honeybee with a mass of 0.175 g lands on one end of a popsicle stick (Active Example 9-2). After sitting at rest for a moment, the bee runs toward the other end with a velocity 1.47 cm/s relative to the still water. What is the speed of the 5.20 g stick

    asked by Kylie

  111. PHI208

    According to Leon Kass, the drive to legalize euthanasia can be largely attributed to what? the rise in a largely technical approach to healing. an increase in our sympathy an increased respect for human dignity. the secularization of modern society.

    asked by Mike

  112. U.S. History Help!!!!!!!

    1. Which of the following was a colonial advantage in the Revolutionary War? A. Lacked military experience B. Were united in the cause C. Led by George Washington D. Were Anglicans 2. Shay's Rebellion in 1787 was an attack on A. The new Federal government

    asked by callie

  113. physics, how to find the height

    On the surface of a planet an object is thrown vertically upward with an initial speed of 60 m/s. use a conservation of energy approach to determine the object's speed when the object is at a quarter of it's maximum height. (assume the planet has no

    asked by Isabelle
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