Popular questions and responses by nicole
  1. Physics

    A large crate filled with physics laboratory equipment must be moved up an incline onto a truck. 1. The crate is at rest on the incline. What can you say about the force of friction acting on the crate? a. The friction force point up the include b. The

    asked on September 22, 2008
  2. Chem

    What is the balanced net ionic equation for copper(2)chloride and potassium carbonate ?

    asked on September 8, 2015
  3. math

    a 12 cm by 16 cm picture is mounted with border of uniform width on a rectangular frame. if the total area of the border is 288 cm2, what is the length of the side of the frame?

    asked on July 21, 2015
  4. Ancient History

    Which effect did continued trade with Egypt have on Kush civilization? A. Kushites adopted many elements of Egyptian culture. Correct answer B. Kushites learned to navigate the Nile River. Incorrect answer C. Kushites stopped trading with other African

    asked on November 27, 2019
  5. Language Arts

    "Type a paragraph in which you use at least two linking commas, two semicolons, and one colon." Does the paragraph below match the criteria above? My dog, Bruno, is absolutely amazing; he's so many things for a one year old Miniature Pinscher: funny,

    asked on November 16, 2015
  6. English

    Identify the italicized part of the sentence. The main event will be a memory contest. subject predicate direct object indirect object predicate noun predicate adjective

    asked on October 30, 2014
  7. Chemistry HELP

    What is the velocity of an electron that has a de broglie wavelength approximately the length of a chemical bond? Assume this length to be 1.2 X10^-10 m.

    asked on September 5, 2015
  8. Math

    A work crew of 3 people requires 3 weeks and 2 days to do a certain job. How long would it take a work crew of 4 people to do the same job if each person of both crews works at the same rate as each of the others? Note: each week contains six work days.

    asked on September 10, 2009
  9. Geometry

    Write an equation of the line passing through point P(4,0) that is parallel to the line -x +2y = 12

    asked on October 2, 2020
  10. geometry

    A tourist in France wants to visit 5 different cities. If the route is randomly selected, what is the probability that she will visit the cities in alphabetical order? Answer choice: a)120 b)1/5 c)1/120 d)1/25

    asked on April 15, 2010
  11. physics

    An object with mass 3.0 kg is attached to a spring with spring stiffness constant k = 300 N/m and is executing simple harmonic motion. When the object is 0.020 m from its equilibrium position, it is moving with a speed of 0.55 m/s. (a) Calculate the

    asked on March 7, 2012
  12. Algebra 2

    A large asteroid crashed into a moon of a planet, causing several boulders from the moon to be propelled into space toward the planet. Astronomers were able to measure the speed of one of the projectiles. the distance (in feet) that the projectile traveled

    asked on February 18, 2015
  13. Chemistry

    Calculate the standard enthalpy change for the reaction 2C8H18(l)+17O2(g)> 16CO(g) + 18H2O(l) Given 2C8H18(l)+25O2(g)>16CO2(g)+18H2O(l) deltaH=-11020 kj/mol 2CO(g)+ O2(g)>2CO2(g) Delta H=-566.0 kj/mol The > is supposed to be an arrow :)

    asked on November 17, 2011
  14. Chemistry

    What mass of octane must be burned in order to liberate 5510 kJ of heat? ΔHcomb = -5471 kJ/mol.

    asked on March 26, 2011
  15. chemistry

    At 23°C, Kp = 0.075 for the equilibrium: NH4HS (s) ↔ NH3 (g) + H2S (g) A sample of solid NH4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (atm) of ammonia, assuming that some solid NH4HS remains.

    asked on September 14, 2012
  16. Buffer Solution

    You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 93 mL of 1.00 M NaOH solution?

    asked on April 13, 2011
  17. Algebra

    A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of $35.70 and then an additional 6 cents per minute of use. In Plan B, the customer pays a monthly fee of $30 and then an additional 7 cents per minute of use. For

    asked on October 4, 2020
  18. Physics

    The instant before a batter hits a .14 KG baseball, the velocity of the ball is 45 meters per second west. The instant after the batter hits the ball, the ball's velocity is 35 meters per second eat. The bat and ball are in contact for 1.0 x 10 ^-2 second.

    asked on March 9, 2010
  19. physics

    The combined mass of a race car and its driver is 600. kilograms. Traveling at a constant speed, the car completes one lap around a circular track of radius 160 meters in 36 seconds. A) Based on the given information, calculate the speed of the car. B)

    asked on January 10, 2010
  20. statistics

    A standardized test has a mean of 88 and a standard deviation of 12. What is the score at the 90th percentile? Assume a normal distribution. how would I solve? a. 90.00 b. 112.00 c. 103.36 d. 91.00

    asked on September 16, 2014
  21. Philosophy

    Explain and critically evaluate Parmenides’ arguments that being is unitary, undifferentiated, and eternal. i am really stuck on this question, could someone help me better understand

    asked on September 27, 2018
  22. Trig

    A weight is oscillating on the end of a spring. The position of the weight relative to the point of equilibrium is given by y=1/12(cos8t-3sin8t), where y is the displacement (in meters) and t is the time (in seconds). Find the times when the weight is at

    asked on October 27, 2014
  23. Chemistry

    Listerine mouthwash has 21.6% ethyl alcohol by volume. What mass of ethanol is contained in 20.0 mL of mouthwash ?! ( the density of ethanol is 0.789 g/mL.) how would yu do this problem ?!?!

    asked on July 24, 2010
  24. algebra

    The sum of the angles of a triangle is 180 degrees. If one angle measures x degrees, a second angle measures 3x degrees, and a third angle measures 7x degrees, express the measure of the fourth angle in terms of x.

    asked on July 6, 2011
  25. Math

    Dave takes out a 23-year mortgage of 200000 dollars for his new house. Dave gets an interest rate of 13.2 percent compounded monthly. He agrees to make equal monthly payments, the first coming in one month. After making the 65th payment, Dave wants to buy

    asked on September 12, 2017
  26. math

    For her vacation Mrs. Andrews bought $300 worth of traveler's checks in $10 and $20 denominations. If she has 22 travelers checks in all, how many of each denomination does she have? Let x represent the number of $10 traveler's checks she has. Which

    asked on August 20, 2012
  27. Math (Algebra 1)

    Juan’s first 3 exam scores are 85, 93, and 87. What does he need to score on his next exam to average 90 for all 4 exams? let x represent the score on his next exam (put this in a multi-step equation) PLEASE HELP

    asked on November 15, 2014
  28. algebra 2

    a flagpole casts a 60 foot shadow when the angle of elevation of the sun is 35 degrees. find the height of the flagpole

    asked on June 15, 2012
  29. Math

    How do you write 2.78 in expanded form

    asked on November 14, 2009
  30. Statistics

    A retail shop accepts only cash or checks. Suppose that 54% of its customers carry cash, 51% carry checks, and 71% carry cash or checks (or both). What is the probability that a randomly chosen customer at the shop is carrying both cash and checks?

    asked on October 22, 2011
  31. geometry

    HELP.... In a certain lottery, 3 numbers between 1 and 9 inclusive are drawn. These are the winning numbers. How many different selections are possible? Assume the order in which the numbers are drawn is not important. Answer choice: a.) 6 b) 84 c) 504 d)

    asked on April 15, 2010
  32. World history

    Which of the following did NOT contribute to an increase in food production and population growth during the Middle Ages? A) the invention of the ox collar B) a climate change C) a heavy, wheeled plow with an iron plowshare D) a three-field system of crop

    asked on December 4, 2017
  33. English

    Analyze one of the following poems: "clearances" Do Not Go Gentle into That Good Night," Not waving but Drowning ,"The Love Song of J.Alfred Prufrock"Ten Songs,"The Guitar use at least 4 of the following in you response: theme,voice,rhyme scheme,poem

    asked on October 17, 2017
  34. Chemistry

    How many atoms of mercury are present in 3.2 cubic centimeters of liquid mercury? The density of mercury is 13.55 g/cc. Answer in units of atoms.

    asked on September 16, 2015
  35. Physics

    Kangaroos can easily jump as far as 8.0 m. If a kangaroo makes five such jumps westward and then seven such jumps northward, what angle would the resultant displacement vector make with the northern displacement vector? What is the magnitude of the total

    asked on September 30, 2014
  36. Chemistry

    calculate the mass of the following numbers of atoms: a] 6.022 X 10^24 atoms of tantalum

    asked on September 28, 2010
  37. math

    Mrs. Jones is thinking of a number that when rounded to the nearest hundred is 400. what is the number? explain

    asked on September 16, 2013
  38. geometry

    If all of the diagonals are drawn from a vertex of a quadrilateral, how many triangles are formed?

    asked on April 20, 2012
  39. Chem

    State the hazard warning label that should be shown on a jar of oxygen.

    asked on October 5, 2011
  40. Physics

    The horizontal surface on which the block slides is frictionless. The speed of the block before it touch the spring is 6.0 m/s. How fast is the block moving at the instant the spring has been compressed 0.15 m? The spring constant, k = 2000 N/m

    asked on February 26, 2017
  41. math

    In a three digit number, the hundreds digit is twice the units digit. If the digits are reversed, the new number is 396 less than the original number. Find the number.

    asked on February 9, 2016
  42. Chemistry

    Calculate the number of moles of carbon atoms present in 1.1 g of ethanol (C2H6O). Answer in units of mol.

    asked on September 16, 2015
  43. Optimization Calculus

    A three sided fence is to be built next to a straight section of river, which forms the fourth side of a rectangular region. There is 96 ft of fencing available. Find the maximum enclosed area and the dimensions of the corresponding enclosure. I drew a

    asked on May 2, 2015
  44. Geometry

    Water was leaking from a faucet at a rate of 1.5 gal every 5 min. If it took 18 min to stop the leak, how much water was wasted?

    asked on August 19, 2008
  45. Algebra

    please help Ahmad is choosing between two exercise routines. In Routine #1, he burns 22 calories walking. He then runs at a rate that burns 15.5 calories per minute. In Routine #2, he burns 48 calories walking. He then runs at a rate that burns 10.3

    asked on October 4, 2020
  46. math

    How many terms are there In an arithmetic Sequence with a common different of 4 and with the first and last term 3 and 59 Respectively.

    asked on June 19, 2015
  47. Chemistry

    A reaction of magnesium with nickel (iii) chloride will produce magnesium chloride and nickel. Using 31.76g of magnesium would produce how many grams of nickel?

    asked on October 21, 2012
  48. Buffer

    You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH3COOH) and 0.20 M sodium acetate (CH3COONa). What will the pH of this solution be after the addition of 93 mL of 1.00 M NaOH solution?

    asked on April 11, 2011
  49. Stats

    Exercise 6-8 The Downtown Parking Authority of Tampa, Florida, reported the following information for a sample of 235 customers on the number of hours cars are parked and the amount they are charged. Number of Hours Frequency Amount Charged 1 18 $3 2 33 7

    asked on September 28, 2010
  50. physics

    A student sits on a freely rotating stool holding two weights, each of which has a mass of 3.00 kg. When his arms are extended horizontally, the weights are 1.00 m from the axis of rotation and he rotates with an angular speed of 0.750 rad/s. The moment of

    asked on December 5, 2006
  51. maths

    A Baker uses 2/3 of a bag of flour to make 6 muffins how many bags of flour will he need to make 48 muffins

    asked on January 13, 2020
  52. English

    Which of the following conflicts in Poor Fish is the most importance -individual vs. self, individual vs. another, individuals. society vs. nature support your answer using example from the story please help this is and essay and I'm confused thank you.

    asked on October 17, 2017
  53. Math

    a cone and a hemisphere share the base that is a semicirclee with radius 3 and the cone is inscribed inside the hemisphere. find the volume of the region inside the hemisphere

    asked on March 18, 2015
  54. Careers

    1. Small family farms are part of the agribusiness pathway. .True .False

    asked on October 15, 2018
  55. Art

    Do writings bias or limit our experience of art?

    asked on September 2, 2009
  56. Chemistry

    An analysis of nicotine (MW = 162 g/mol) gives 74.0% carbon, 8.65% hydrogen, and 17.3% nitrogen. What is the TRUE (MOLECULAR) formula for nicotine? All I need are the formulas!!

    asked on September 16, 2015
  57. chemistry

    A sample of N2O effuses from a container in 45 seconds. How long would it take the same amount of gaseous I2 to effuse from the same container under identical conditions?

    asked on October 16, 2008
  58. mathematics

    Question 1 There are 5 roses in a vase of 13 flowers. The rest are daisies. (a) What is the ratio of roses to daisies? (b) What is the ratio of daisies to all flowers in the vase? Clears your work.

    asked on October 16, 2020
  59. Algebra

    Josh is choosing between two exercise routines. In Routine #1, he does only running, burning 8.5 calories per minute. In Routine #2, he burns 17 calories walking. He then runs at a rate that burns 4.25 calories per minute. For what amounts of time spent

    asked on October 2, 2020
  60. physics

    robin is standing terrified at the end of a diving board, which is high above the water. if robin has a mass of 75 kg and is standing .6m from the board's pivot point, what torque is robin exerting on the board

    asked on April 22, 2014
  61. math

    chris put $1,500 in a savings account at an annual interest rate of 5%. If chris does not deposit or withdraw any money, what is the amount of interest chris will earn the first year her money is in the savings account? use the formula i=prt

    asked on August 4, 2013
  62. science

    an experiment for a new asthma medication was set up into two groups. Group one was given the new drug, while group 2 was given a sugar pill. the sugar pill serves as _________. a) control B)constant c) Experimental variable D) dependent variable

    asked on September 4, 2012
  63. physics

    The position of an object as a function of time is given by x = At2 – Bt + C, where A = 7.3 m/s2, B = 5.8 m/s, and C = 4.5 m. Find the instantaneous velocity and acceleration as functions of time. (Use the following as necessary: t.) help!!!!!!!!! thank

    asked on August 28, 2012
  64. Algebra

    Use the function to answer the question. f(x)=1/4-x For what value in the domain is the function undefined? Explain your answer.

    asked on April 20, 2012
  65. Org Chem

    Which of the following compounds could be meso compounds? a. 2-bromo-4-chloropentane b. 2,5-dimethylheptane c. 2,4-dimethylpentane d. 4,6-dichlorononane

    asked on April 1, 2011
  66. science

    if 1000 grasshoppers weigh kg how much does one grasshopper weigh?

    asked on July 21, 2010
  67. Algebra

    David is choosing between two exercise routines. In Routine #1, he burns 18 calories walking. He then runs at a rate that burns 10.25 calories per minute. In Routine #2, he does only running, burning 12.5 calories per minute. For what amounts of time spent

    asked on October 4, 2020
  68. Math... PLEASE HELP!!

    If one angle in a pair of vertical angles measures 42 degrees and the other measures 2n-4 degrees, which is the value of n? I got 23 degrees but I am not sure if it is correct. Please help me...

    asked on November 12, 2013
  69. Chemistry

    Use the balanced equation to answer the following: 3AgNO3(aq) + FeCl3(aq)...Fe(NO3)3(aq) + 3AgCl(s) If 21.73g of FeCl3 is mixed with 48.97g of AgNO3 a) Which is the limiting reagent? b) How many grams of AgCl can be theoretically produced? c) If 15.97g of

    asked on October 21, 2012
  70. Chemisrty Lab

    dimensions of a concrete pile are 14 inchesx14 inches x 15 feet. (1 meter=3.28 feet) the pile has 4 faces and 2 ends. 1>what is the surface area in square feet, of a single pile? exclude the ends of the pile. 2>What is the total surface area in square

    asked on September 11, 2007
  71. Science - Physics

    When a projectile is fired horizontally, which of the components of its motion is (A) motion at constatnt speed (B) uniformly accelerated motion (C) If the initial velocity of the projectile is increased, what effect will this have on the time it takes the

    asked on December 6, 2006
  72. Language Arts

    1. Which of the following sentences uses the past perfect verb tense. A) By June, I will have owned the camera shop for a decade. B) After it was sold, I had owned the camera shop for 12 year as C) I cannot recall a time when I have not owned some kind of

    asked on October 24, 2016
  73. Math

    a gift store owner used 9 rolls of wrapping paper to wrap his customers' gifts last week. each roll was 58 1/3 inches long. how many gifts did he wrap if a 8 1/3 inch long piece of wrapping paper was used to wrap each gift?

    asked on October 12, 2015
  74. English, Written Communication

    Which of the following are examples of coordinate headings? A. 3, b, iii B. A, i, a C. ii, 2, B D. A, B, C My answer was C but i got it wrong, is it A? PLEASE HELP CANT FIND IT IN MY TEXT BOOK

    asked on May 22, 2015
  75. Algebra

    what is the inverse of the linear parent function? How would you graph the inverse and what are the values for the inverse???

    asked on December 16, 2013
  76. physics

    Calculate the effective value of g, the acceleration of gravity (in meters/second^2), at 5100 km above the earth's surface.

    asked on March 14, 2013
  77. Math

    A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function s(t) = -16t^2 +64t + 160 models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how

    asked on October 18, 2011
  78. geometry

    How many 5 card poker hands consisting of 3 aces and 2 kings are possible with an ordinary 52-card deck? Answer choice: a).12 b).288 c).6 d).24 I got 24 is that correct?

    asked on April 15, 2010
  79. social studies

    when listing a location of a place the degree of longitude is always listed???

    asked on September 7, 2009
  80. 9th grade

    why did miss muffet need a road map

    asked on October 8, 2008
  81. music

    trying to look for a 7 letter word using music notes cdeeffggaabb is this a damn trick question. best i can do is badge What about cabbage? you are a star, thank you so much

    asked on January 24, 2007
  82. business mathematics

    AntiFam, a hunger-relief organization, has earmarked between $2 million and $2.5 million (inclusive) for aid to two African countries, Country A and Country B. Country A is to receive between $1 million and $1.5 million (inclusive), and Country B is to

    asked on October 3, 2020
  83. english

    In "Why, You Reckon?" what argument does the other man use to convince the narrator to team up with him? What lesson do you think the narrator learned by the end of the evening? I have part of the answer but I don't now how to put it in ACE format.

    asked on January 23, 2015
  84. Chemistry

    How many grams of acetic anhydride are needed to react with 3.82g of salicylic acid?

    asked on April 23, 2014
  85. English

    Click on the box to choose the function of the italicized infinitive phrase. May I have permission to use the car tonight? I think its adjective.

    asked on March 20, 2013
  86. history

    an official permit? a source for tobacco. residents of the Jamestown are before 1607?

    asked on February 3, 2013
  87. Geometry

    Find m∠T if m∠T is 20 more than four times its supplement.

    asked on September 4, 2012
  88. 6 Entropy

    Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of sodium nitrate is dissolved in water? S° (J/K•mol) NaNO3(s) 116.3 Na+(aq) 60.25 NO3–(aq) 146.4 Using the value you calculated, how will the

    asked on May 3, 2011
  89. AP Chemistry

    which of the following is the most polar? 1. I3- 2. XeF2 3. SCN- 4. O3 5. N2O i know it's not I3- or SCN-. which one would it be.

    asked on August 8, 2010
  90. mathematics

    Angles 1 and 7 are alternate exterior angles of a transversal cutting two parallel lines. If m(angle1)=4x+10 and m(angle7)=6x+4, what are the measures of angles 1 and 7? Give a property of angles that helped you solve the problem. What's confusing me about

    asked on February 10, 2010
  91. math

    how many positive 4-digit numbers are there with an even digit in the hundreds position and an odd digit in the tens position? a. 10,000 b. 5,040 c. 2,500 d. 2,250

    asked on September 3, 2018
  92. Math

    How fp you Order the numbers from least to greatest 0.4, 5%8, 38%? Please show the steps.

    asked on September 20, 2017
  93. accounting

    Determine the ending balance of the Merchandise Inventory account given the following transactions: TooDaLoo had a beginning balance of $8,500 in its Merchandise Inventory account. They purchased $45,000 worth of inventory on account from WeeParcel under

    asked on November 5, 2016
  94. science

    How far does your automobile travel in meters during your reaction time if you are moving at 55 mi/h (25 m/s)?

    asked on September 6, 2014
  95. Physics

    A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 5.9 m due east. For the second putt, the ball travels 2.4 m at an angle 20° north of east. The third putt is 0.50 m due north. What displacement

    asked on June 26, 2014
  96. Calculus - Volume by Integration

    Find the volume of the solid generated by revolving the region bounded by the given lines and curves about the y-axis: y=(x-2)^3-2, x=0, y=25 (a)solve by either the disk or washer method (b)solve by the shell method (c)state which method is easiest to

    asked on November 24, 2013
  97. Science

    What is the order of the electromagnetic spectrum from highest to lowest energy. I got Radio, Microwave, Infrared, Visible light, Ultraviolet light, X-ray, and Gamma ray. Am I correct? If not, please help me so I can put it in the right order.

    asked on November 22, 2013
  98. english

    A good strong thesis statement about the children's book Corduroy by Don Freeman

    asked on October 20, 2011
  99. busniess communication

    Today, many employers expect interviewees to do more than just answer standard questions, including all of the following EXCEPT: A. defer to the hiring company to take control of the interview process. B. provide samples of the work they would likely do in

    asked on August 27, 2011
  100. Math

    write numeral as hindu- arabic numeral _ XMMDCLXII

    asked on May 14, 2011


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