Most popular questions and responses by nik
  1. 4th grade math

    Solve this number riddle: I am an odd number. I am less than 100. The sum of my digits is 12. I am a multiple of 15. What number am I? Is it 1?

    asked on January 25, 2017
  2. Physics

    Four forces act on a hot-air balloon, shown from the side in the figure below. Find the magnitude and direction of the resultant force on the balloon if F1 = 5050 N, F2 = 1450 N, F3 = 950 N, and F4 = 4200 N. ________° clockwise from F2

    asked on October 17, 2012
  3. physics

    An iron cube floats in a bowl of liquid mercury at 0 C. a) If the temperature is raised to 28 C, will the cube float higher or lower in the mercury? b)By what percent will the fraction of volume submerged change? Thanks

    asked on September 4, 2008
  4. Trigo

    A vertical pole is standing on a slope that is inclined at an angle 8 degrees to the horizontal and casts a shadow that is 82 ft. long down the slope. How tall is the pole if the angle of elevation of the sun is 28 degrees?

    asked on September 16, 2014
  5. Physics - Angular Momentum

    Water drives a waterwheel (or turbine) of radius 3.5 m. The water enters at a speed v_1 = 7.5 m/s and exits from the waterwheel at a speed v_2 = 4.0 m/s. a) If 84 kg of water passes through per second, what is the net torque? b) If the water causes the

    asked on April 18, 2008
  6. Macroeconomics

    Suppose most business executives expect a slowdown in the economy. How might this situation effect the economy? What would these expectations do to inventory ordering, hiring, and making loans, or investing in new machinery?

    asked on August 16, 2007
  7. Physics - Equilibrium

    A uniform ladder of mass M and length L leans at an angle theta against a frictionless wall. If the coefficient of static friction between the ladder and the ground is U, determine a formula for the minimum angle at which the ladder will not slip.

    asked on April 18, 2008
  8. Physics - Fluids

    A cube of side length 11.0 cm and made of unknown material floats at the surface between water and oil. The oil has a density of 810 kg/m^3. a)If the cube floats so that it is 70% in the water and 30% in the oil, what is the mass of the cube? b)What is the

    asked on April 25, 2008
  9. physics - fluids

    A fire hose exerts a force on the person holding it. This is because the water accelerates as it goes from the hose through the nozzle. How much force is required to hold a 7.5 cm diameter hose delivering 450 L/min through a 0.80cm diameter nozzle?

    asked on May 2, 2008
  10. PHI 105

    Assignment: Political Campaign Ads  Due Date: Day 7 [Individual] forum  Create a political campaign ad (a poster, a flier, etc.) for two political parties: one party that supports traditional moral and political philosophies and another party that

    asked on March 1, 2009
  11. Physics - Angular Momentum

    A 230 kg beam 2.4 m in length slides broadside down the ice with a speed of 22 m/s. A 65 kg man at rest grabs one end as it goes past and hangs on as both he and the beam go spinning down the ice. Assume frictionless motion. a) How fast does the center of

    asked on April 18, 2008
  12. Corporate Finance

    The yield-to-maturity on a bond is the interest rate you earn on your investment if interest rates do not change. If you actually sell the bond before it matures, your realized return is known as the holding period yield. Suppose that today, you buy a 12

    asked on April 21, 2011
  13. calculus

    Let f(x)=2.2 3x. Estimate the derivative f'(2.3) to within two decimal places by using a small enough interval.

    asked on October 1, 2010
  14. Physics

    A thin rod of length L and mass M rotates about a vertical axis through its center with angular velocity w. The rod makes an angle B with the rotation axis. Determine the angular momentum of the rod.

    asked on April 18, 2008
  15. english

    in the following sentence which word is the gerund and is it used a direct object, a predicate noun, subject or object of a preposition?

    asked on June 12, 2018
  16. chemistry

    According to the following reaction, how many grams of sulfur trioxide will be formed upon the complete reaction of 21.2 grams of oxygen gas with excess sulfur dioxide? sulfur dioxide (g) + oxygen (g) sulfur trioxide (g)

    asked on October 24, 2010
  17. calculus

    (1 pt) The following table gives the cost and revenue, in dollars, for different production levels, q. Answer the questions below. q 0 100 200 300 400 500 600 R(q) 0 540 1080 1620 2160 2700 3240 C(q) 650 915 985 1115 1270 1870 2605 At approximately what

    asked on October 12, 2010
  18. science

    a current of 4a flows through a 12v headlight for 10min calculate energy transfered during this time

    asked on March 12, 2010
  19. geometry

    Flower seeds will be planted at points that lie on a circle that has a diameter of 8 feet. The point where any seed is planted must be 2 feet away from the seefs on either side of it. What is the maximum number of seeds that can be planted.

    asked on March 20, 2016
  20. geometry

    Find m angle NKL if m angle JKL = 2m angle JKN

    asked on September 27, 2012
  21. ethnic

    Do members of your community look like you? In what ways do they look the same or different? o How do leaders within your community treat people who are like you? How do they treat people who are different? o How do other members of your community treat

    asked on June 26, 2008
  22. Algebra word problem

    In 2004, the population of Mexico was 106.5 million. If Mexico's population continues to grow at an annual rate of 1.43%, then the population in 2015 will be 106.5 (1.0143)^11 million. a. find the predicted population in 2015 to the nearest tenth of a

    asked on July 30, 2007
  23. math

    what is the maximum amount of money you can win on the game show jeopardy in any one night? Note that the dollar amounts in each category are bigger than they used to be and don't forget the daily double and the bonus round.

    asked on August 21, 2008
  24. Math medication problems

    I really don't know how to begin to approach this problem. A 6-year-old patient underwent an outpatient tonsillectomy and adenoidectomy The surgeon ordered 1,000 cc D5W, dispensed at a rate of 600 cc every 8 hours, to maintain hydration levels. A

    asked on September 19, 2017
  25. calculus

    The graph of the function y=g(x) is given in the figure above. The x coordinate is (0,-2.) 3. Estimate the x-coordinate of the point where g''(x)=0. Round your answer to one decimal place.

    asked on October 7, 2010
  26. Biochemistry

    What is the pH of the resulting solution if 10.0 mL of 1.0 M NaOH is added to 100 mL of this formic acid - sodium formate solution?

    asked on June 27, 2016
  27. physics - another thermo problem

    A bicycle pump is a cylinder 20 cm long and 3.0 cm in diameter. The pump contains air at 25.0 C and 1.0 atm. If the outlet at the base of the pump is blocked and the handle is pushed in very quickly, compressing the air to half its original volume, how hot

    asked on September 18, 2008
  28. math

    the problem is to use the information given to figure our who will win the third round of tugofwar. round 1 on one side are four acrobats, each of equal strength. on the other side are five neighborhood grandmas, each of equal strength. the result is dead

    asked on August 21, 2008
  29. Math

    A recepie for pancakes call for 1.25 cups of milk. camper need 4 times recipe. How many quarts of milk will he need if 4 cups equal 1quart

    asked on January 9, 2017
  30. Behavioral Statistics

    Because Foofy's score had a relative frequency of .02, she claims she had one of the highest scores on the exam. Why is she correct or incorrect?

    asked on January 31, 2016
  31. college algebra

    find the equation of a parabola that opens to the right with given vertex: (0,3) and passes through the point: (2,-1)

    asked on July 14, 2012
  32. algebra

    15(s-3)=12s-43 How would I go about solving this problem?

    asked on March 14, 2011
  33. calculus

    Assume the initial investment was $6600 and the annual interest rate to be compounded continuously is 5%. Assume also that the target amount is $7900. If you want the account to contain the target amount given above after 9 years, what yearly interest rate

    asked on September 14, 2010
  34. science

    what are variables in science experiments? please give me an example like my experiment is how to tell if a person is lying by his body language.thank you. need answer badly!!!

    asked on May 10, 2009
  35. history

    how can you Create a full-sentence outline that includes effective arguments and counterarguments to support your thesis

    asked on June 2, 2008
  36. physics - oscillations

    A mass m is at rest on the end of a spring of spring constant k. At t = 0 it is given an impulse J by a hammer. Write the formula for the subsequent motion in terms of m, k, J, and t. Assume x=0 at t=0. Thanks, -nik

    asked on May 9, 2008
  37. physics - oscillations

    A mass m is at rest on the end of a spring of spring constant k. At t = 0 it is given an impulse J by a hammer. Write the formula for the subsequent motion in terms of m, k, J, and t. Assume x=0 at t=0. Thanks, -nik

    asked on May 9, 2008
  38. ethnic

    Consider these questions: What are the most significant similarities between the Chinese American and Japanese American [cultural] experiences? What are the differences? (Schaefer, 2006, p. 352) • Choose from any of the following topics when considering

    asked on June 25, 2008
  39. substitution

    Please take me through this one problem and I think I can use this as a guide to tackle the others... Solve by the addition method, indicate if it is independent, inconsistent, or dependent x+3(y-1)=11 2(x-y)+8y=28 multiply out and get each into the form

    asked on August 16, 2007
  40. chemistry

    The fictitious compound, arrhenium fluoride (AhF), reacts with itself to form a dimer with the formula Ah2F2. The reaction is second order in AhF. The value of the rate constant is 6.091×10−3 M−1s−1. What is the initial rate of reaction in a reactor

    asked on November 29, 2012
  41. calculus

    solve the equation: 6P=Pe^1.1t

    asked on September 13, 2010
  42. COM 150

    Some athletes have taken drug tests to prove they are not on steroids. does this sentence contain a regular or irreagular verb, and why?

    asked on March 5, 2010
  43. math

    how many months in 7 & 1/2 years?

    asked on February 24, 2010
  44. history

    200- to 300-word summary of a current issue between Native Americans and the federal government. Identify the legislation that you think is linked to the issue, and explain why you think there is a connection. Consult the National Congress of American

    asked on June 13, 2008
  45. history

    To me everyone is the same and by having someone under someone else it sure brings out a lot of problems in life

    asked on May 28, 2008
  46. ethnic

    what are the issues between the Chinese American and Japanese American [cultural] experiences? What are the differences?

    asked on June 27, 2008
  47. Algebra question

    When you solve a system of equations by the substitution method, how do you determine whether the system of equations is dependent? If your variables disappear as you simplify, and you end up with 0=0 (or k=k) the system is dependent. (really just the same

    asked on August 14, 2007
  48. I have the problem halfway solved

    -9/7x + 8 < -4x - 5 -9/7x + 4x + 8 , -4x + 4x - 5 -9/7x + 4x +8 < -5 The book then has 19/7x + 8 < - 5 I know how to solve this but I am lacking or trying to remeber how they got 19/7 - need a refresher Convert the "x" terms to common denominators 4 x -

    asked on August 2, 2007
  49. math

    A student reader is making $7.20 per hour and gets a $0.64 raise. What is the percent increase? (Round to the nearest tenth of a percent.)

    asked on December 12, 2014
  50. trig


    asked on April 10, 2013
  51. chemistry

    N2O5 dissolved in CCl4 decomposes to give N2O4 and O2. The reaction is first order with a half-life of 1234 seconds. How long will it take, in seconds, for the concentration of N2O5 to fall to 1.1% of its initial value?

    asked on November 29, 2012
  52. geometry

    angle JKN = 56 degree

    asked on September 27, 2012
  53. college algebra

    write the equation of the hyperbola in standard form: x^2-4x-y^2+6y=9

    asked on July 14, 2012
  54. math algebra

    9p +2q-4(6p-2q) simplified

    asked on September 15, 2011
  55. physics

    TRIAL 1 A. ) Bag A + 6 stones Mass (kg) - 0.037 kg Mass of weight hanger + slotted weights - 210 g/ 0.21kg Tension 1 (N) - ?? Acceleration (m/s2) - ?? B. ) Bag B + 4 stones Mass (kg) - 0.08 Mass of weight hanger + slotted weights - 210 g/ 0.21kg Tension 1

    asked on May 4, 2011
  56. Advanced Functions

    If a bacteria population doubles in 7 days, when was it half of its present population?

    asked on January 12, 2011
  57. science

    sorry i put my question in the wrong place. ok my question is can you tell me if i did this correctly. my experiment was about how can you tell if the person is lying by his body language. will my independent variable be when i interview a person on a dim

    asked on May 10, 2009
  58. science

    sorry i put my question in the wrong place. ok my question is can you tell me if i did this correctly. my experiment was about how can you tell if the person is lying by his body language. will my independent variable be when i interview a person on a dim

    asked on May 10, 2009
  59. physics

    A 1.80 mol sample of an ideal diatomic gas at a pressure of 1.20 atm and temperature of 410 K undergoes a process in which its pressure increases linearly with temperature. The final temperature and pressure are 710 K and 1.83 atm. (Note: Volume does not

    asked on September 18, 2008
  60. history

    What type of introduction and what type of conclusion do you plan to write for your research paper? How does the introduction draw readers into your argument, and how does the conclusion neatly tie up your paper?

    asked on June 8, 2008
  61. math

    5/(w-3) Solve for w. w= I don't understand. Please help. Did I copy this incorrectly or something?

    asked on September 26, 2013
  62. Calc

    What is lim (x -> 0) of (e^x) / x Thank you!!

    asked on September 13, 2012
  63. college algebra

    Find the standard form of the equation of an ellipse with center at (-2,1) with major axis length 10 along y axis and minor axis length 8 along the x axis

    asked on July 14, 2012
  64. calculus

    For what values of a and b that make the function f continuous everywhere. f(x)= {x−2x2−4 if x

    asked on September 16, 2011
  65. math

    what is h(-3-h)

    asked on May 19, 2010
  66. chemistry

    how many moles of acetic acid are in 15.05mL, 45.13mL, and 75.22mL of titrated vinegar?

    asked on May 14, 2010
  67. calculus

    what is the the derivative of the absolute value !@#$%^&tion x-3

    asked on November 15, 2009
  68. science

    do pupils dilate when a person lies? why? thank you!

    asked on May 10, 2009
  69. physics

    easy method to solve questions on ap,gp,agp?????????????????????

    asked on September 27, 2008
  70. history

    Consider the choices of Native Americans who decide to stay on their tribe's native land (reservation)and those who choose to relocate to a city. If you were presented with this decision, which would you choose and why?

    asked on June 12, 2008
  71. ethnic

    What information about race and ethnicity in the United States has helped you better understand or relate to specific minority groups? Have you learned something new about your own cultural history? Trends in immigration will continue to shape the face of

    asked on July 3, 2008
  72. history

    Identify the different types of statistics, graphs, and illustrations that are appropriate for your topic. Where do these visuals fit most effectively into your paper? Explain how these visuals strengthen your arguments

    asked on June 5, 2008
  73. history

    Identify the thesis statement in the article AIDS in Africa: Dying by the Numbers. What strategies does the author use to formulate his argument? What makes the argument so compelling?

    asked on May 28, 2008
  74. science

    Post your response to the following: Reflect on your own worldview and compare it with the worldviews presented in the text. Provide examples of the benefits of your view to defend your position.

    asked on July 10, 2008
  75. ethnic

    If someone made the below statements to you, how would you explain that the statements are misconceptions? Include whether you think most Americans believe these misconceptions, and why or why not. o Asian Americans and Pacific Islanders are a model

    asked on June 23, 2008
  76. Algebra help

    Would someone help me through this one...? (-10rs^9t4/2rs^2t^7)^3

    asked on September 17, 2007
  77. another problem for checking - algebra

    P dollars is invested at annual interest rate r for 1 year. If the interest is compounded semiannually, then the polynomial P(q + r/2)^2 represents the value of the investment after 1 year. Rewrite w/o parenthesis and eval if P= $200 and r = 10% P(1 +

    asked on September 17, 2007
  78. need an answer checked

    The length of a rectangular swimming pool is 2x-1 meters, and the width is x + 2 meters. Write a polynomial that represents the area. Find the area if x is 5 meters. (2(5)-1) (5+2) (10-1) (9* 7) 63 My answer is 63. Do you agree?

    asked on September 17, 2007
  79. ethnics

    What strategies do you use for revising a paper? How do you know when to accept feedback from another source? What makes feedback valuable to you?

    asked on June 24, 2008
  1. Math Literacy

    How Would i explain that in a form of a paragraph??

    posted on September 19, 2017
  2. American Government

    Lesson 8: The Articles of Confederation 1:A 2:C 3:D 100%

    posted on September 15, 2016
  3. basic statistics for the behavioral sciences

    (A) Wrong. 10th percentile means the lowest 10% of the class (B) Neither right nor wrong. It depends on which tail end the scores fall upon

    posted on January 31, 2016
  4. Analyzing with ANOVA

    7.408 6.922 2.277

    posted on September 22, 2015
  5. chemestry


    posted on June 22, 2015
  6. MATHS


    posted on November 6, 2014
  7. math


    posted on October 6, 2014
  8. physics

    You did a mis-step in your calculation as its ... y=y0+V0yt+.5Ayt^2 0=30+10t[-.5(9.8)t^2]

    posted on October 1, 2014
  9. 3rd grade math


    posted on August 12, 2014
  10. physics(URGENT!!!!!)

    part d- f'=f explanation: in case of wind blowing, we'll add the speed of wind to the speed of sound (vectorially). Hence in this case it will add up. Now since the both the observer and the source are stationary, there will be no change in the frequency

    posted on December 9, 2013
  11. Physics Classical Mechanics

    Tfixed=2*pi*((8*l^2+3*R^2)/(9*g*l))^(1/2) but i haven't yet checked my answer for Tfree.

    posted on November 13, 2013
  12. finance

    2.6 / 5.63

    posted on November 12, 2013

    there is a problem in the last answer, at the site from where this question is from.

    posted on November 6, 2013
  14. S.S

    hmm im not rly sure either :D

    posted on June 3, 2012
  15. chemistry


    posted on February 18, 2012
  16. math


    posted on September 16, 2011

    Set acceleration to 0, since you want to keep the same speed.

    posted on October 25, 2010
  18. calculus


    posted on September 13, 2010
  19. math


    posted on May 19, 2010
  20. Geography

    I love you.

    posted on March 26, 2010
  21. science

    can you tell me if i did this experiment is about how can you tell if someone is lying by their body language. my independent variable will be if i interview a person in a dim light while all person interview will be on regular or normal light.

    posted on May 10, 2009