Popular questions and responses by naomi
  1. Chemistry

    What is the total molar concentration of all the ions in 0.0200 M solutions of the following salts in water? 0.0200 M KCl 0.0200 M CuSO4 0.0200 M CaCl2

    asked on March 3, 2018
  2. Statistics

    A certain organization recommends the use of passwords with the following​ format: consonant comma consonant, consonant comma vowel comma consonant comma vowel comma consonant comma number comma number consonant, vowel, consonant, vowel, consonant,

    asked on June 21, 2018
  3. chemistry

    what are the advantages and disadvantages of cooking vegetables and fruits?

    asked on December 11, 2008
  4. Chemistry

    7. 2Sr + O2  2SrO a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent 8. 2Cs + Br2  2CsBr a) Determine what is oxidized and what is reduced b) Identify the oxidizing agent and the reducing agent

    asked on March 2, 2018
  5. Chemistry

    an 83.0 kg athlete running a "4-minute mile" (i.e. 4.00 min/mile) ________nm an electron (me = 9.10939 × 10–28 g) moving at 3.90 × 106 m/s in an electron microscope ______nm

    asked on March 21, 2018
  6. Math

    A rectangular pizza, 40 cm by 60 cm, is cut into 24 square pieces. Two round pizzas, each cut into 12 slices, also give 24 pieces. So that the pizzas are the same size, what must be the diameter of the round pizzas?

    asked on November 29, 2017
  7. Physics

    Two spherical objects are separated by a distance of 2.97 × 10-3 m. The objects are initially electrically neutral and are very small compared to the distance between them. Each object acquires the same negative charge due to the addition of electrons. As

    asked on February 13, 2016
  8. physics

    At a distance r1 from a point charge, the magnitude of the electric field created by the charge is 291 N/C. At a distance r2 from the charge, the field has a magnitude of 165 N/C. Find the ratio r2/r1. I divided 165/291 and got .567

    asked on February 13, 2016
  9. Math

    If the area of parallelogram ABCD = 246 mm2 and h = 20.5 mm, what is the length of the base of triangle ABD? A.12 mm** B.24 mm C.123 mm D.There is not enough information given.

    asked on February 26, 2016
  10. physics

    A person walks 25m west and then 45m at an angle of 60 degrees north of east. What is the magnitude of the total displacement?

    asked on June 14, 2011
  11. Chemistry

    Lactic acid, a chemical responsible for muscle fatigue, is a monoprotic acid. When 0.578 g of lactic acid is titrated with 0.206 M NaOH, a volume of 31.11 mL of NaOH is used. What is the molar mass of lactic acid? HA + NaOH > NaA + H2O (also does the A

    asked on March 3, 2018
  12. Math

    solve the equation c/4 -5 =4 Please show all steps please!

    asked on May 5, 2017
  13. Physics

    A microscope is focused on a mark on a table. When the mark is calculated by a glass plate of 3.00cm thick,the microscope has to be raised 1.1cm from the mark to be once more in focus.calculate the refractive index of the glass.

    asked on April 10, 2013
  14. mATH

    1. Compare using , or =. -15 and -21 A < (MY ANSWER) B > C. = 2. Which nuumber is greater than -24? A -42 B-27 C -16 (MY ANSWER) D -30 3. Which set of integers is ordered from greatest to least. A -13, 4, 0, -8 B -5, -2, 3, 1 C -12, -8, -4, 7 (MY ANSWER) D

    asked on April 3, 2017
  15. physics

    When point charges q1 = +8.9 μC and q2 = +7.6 μC are brought near each other, each experiences a repulsive force of magnitude 0.10 N. Determine the distance between the charges. I got 6.08 m

    asked on February 13, 2016

    Your current cell phone company charges $30 per month for unlimited minutes. Another company charges $20 per month for the first 500 minutes plus 5¢ a minute for any additional minutes. Should you keep your current service or switch to the other company?

    asked on December 13, 2015
  17. math

    a group of people pays $720 for admission tickets to an amusement park the price of an adult ticket is $15, and a child ticket is $8. there are 25 more adults than children. how many children are in the group?

    asked on October 20, 2013
  18. trig

    Suppose the tangent of an acute angle in a right triangle is less than 1. How does the side opposite the angle compare to the side adjacent to the angle?

    asked on March 5, 2011
  19. Program design

    Input the following: Salesperson number Gender (F or M) Department number (1 or 2) Sales amount Basic salary Write the pseudocode to calculate how much a salesperson earns when his/her commission and basic salary are combined. If a salesperson sells above

    asked on June 3, 2019
  20. Math

    A basketball has a surface area of 1810 in^2 and a baseball has a surface area of 6 in^2. What is the diameter of a baseball if the diameter of a basketball is 9.5 in^2.

    asked on October 18, 2017
  21. Calculus

    Use cylindrical shells to find the volume formed by rotating the region in the first quadrant enclosed by: y=1.2-1.4|x-12| and y=0 about the y-axis

    asked on May 3, 2017
  22. urgent help!

    ASAP help please. Choose one destination that is represented by a flag. Write a paragraph about the effects of climate change in that destination. I do not know what to choose for this just give me ideas plz.

    asked on April 13, 2017
  23. Social Studies

    The decades around the year 50 B.C. saw the end of the Roman Republic and the rise of the Roman Empire. What factors led to the decline of the Roman Republic? Do you think there was any way for the republic to be preserved? What are the disadvantages of an

    asked on March 15, 2017
  24. Science Please Help

    Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

    asked on January 30, 2017
  25. Math

    Demarcus drew a pair of complementary angles. He drew one angle that had a measure of 48 degrees. What was the measure of the other angle he drew? A. 42 degrees** B. 48 degrees C. 132 degrees D. 138 degrees

    asked on February 26, 2016
  26. math

    a mother wants to invest 5000 for her sons future education. She invests a portion of the money in a bank certificate of deposit which earns 4% and the remainder in a savings bond that earns 7%. If the total interest earned after one year is $300.00,how

    asked on August 23, 2015
  27. Physics 2

    four identical charges (q = +3µC) are arranged in a form of a rectangle. what are the magnitude and direction of the net electric force on the charge in the lower right corner attributable to the other three charges? distances are in meters.

    asked on August 16, 2014
  28. Chemistry

    If 1.5g of CaO is mixed with 2.5M HNO3 how many moles of CaO were reacted and what type of reaction is this ?

    asked on July 20, 2014
  29. Science

    Both carbon dioxide and water are pure substances. How are they similar to each other? A.) both substances have a set ratio of atoms that cannot be separated by physical means. B.) both substances have a set ratio of atoms that can be separated by physical

    asked on April 15, 2014
  30. Math

    a flower was 1.6 meters high one week ago in 7 days it grew 11 centimeters find the current height of the flower 12.3 m, 1.71 m, 125 cm or 11.2 cm , i did times tables and got 17.6 and then i tried deviding but got a weird long number that wasn't on the

    asked on April 11, 2014
  31. math

    a tank and a pail contain a total of 5,136 milliliters of water. jacob pours 314 milliliters of waster from the pail into the tank. the amount of water in the tank is now 7 times what is left in the pail. how much water was in the pail at first?

    asked on October 20, 2013
  32. Chemistry

    Arsenic acid has the formula H^3AsO^4. It is a triprotic acid. Abottle is marked 0.422 N arsenic acid. What is the Molarity of this solution?

    asked on April 27, 2013
  33. reading

    the perspective on rosa parks, the bus driver, or another passenger (black,or white} i have to create possible titles, and important points to include in the essay.

    asked on February 16, 2013
  34. social studies

    can you see if i have good grammar,usage, mechanics and spelling Job description: use various types of equipment, develop, secure, and packages. Physical evidence for scientific evaluation and comparison, prepares detailed reports on the observation and

    asked on December 16, 2012
  35. Reading

    can you help me thank you: 2.Detecting bias is one of the major keys to effective critical thinking and reading. True or False, I believe True 3.Deductively valid arguments can guarantee their conclusions. True or False, I believe it is false 4.A fallacy

    asked on August 6, 2011
  36. physics

    A disgruntled physics student,frustrated with finals,releases his tensions by bombarding the adjacent building,17.7 m away with water balloons. He fires one at 38 degrees from the horizontal with an initial speed of 27.1 m/s. The acceleration of gravity is

    asked on June 23, 2011
  37. Geography

    You need to open a new clothing factory to keep up with the demand for your clothing in the United States. You have looked into building the factory in Trinidad and Tobago. Would your factory likely be able to find enough workers? Explain your answer.

    asked on May 4, 2011
  38. algebra2

    the basketball team has played 21 games. the ratio of win to loses is 5:2. how many games has the team won?

    asked on October 12, 2010
  39. world history

    what was the religion in eastafrica(ethiopa, kenya)during the time peridos 8000bce-600ce

    asked on September 20, 2009
  40. physics

    if a bean of mass 2.0 g jumps 1.0 cm from your hand into the air, how much potential energy has it gained in reaching its highest point? What is its speed as the bean lands back in the palm of your hand?

    asked on January 24, 2009
  41. english

    We are doing a project that claims that children are "invisible" to society. What could be done to make them visible?

    asked on January 11, 2009
  42. psychology

    what is muller lyer

    asked on July 7, 2008
  43. Math

    how do I write the sum of a number times 2 and 20 is greater than 24 as a inequality?

    asked on April 9, 2020
  44. math

    Find the first four terms of the sequence whose general term is given by:(a)5n+(1÷2)n_2,(b)2n+1÷3n+2

    asked on February 17, 2020
  45. Physics

    A horizontal pipe carries oil whose coefficient of viscosity is 0.700 N·s/m2. The diameter of the pipe is 46.0 cm and its length is 51 km. (a) What pressure difference is required between the ends of this pipe if the oil is to flow with an average speed

    asked on December 3, 2019
  46. Physics

    please help keep getting these wrong (a) What is the escape speed on a spherical asteroid whose radius is 515 km and whose gravitational acceleration at the surface is 2.7 m/s2? 3.0147E9 Incorrect: Your answer is incorrect. m/s (b) How far from the surface

    asked on November 12, 2019
  47. Physics

    A sphere of radius 30cm, temperature 23.0°C and emissivity 0.62 is located in an environment of temperature 58.0°C. At what rate does the sphere emit and absorb thermal radiation and what's the sphere net rate of energy exchange?

    asked on November 3, 2019
  48. Calculus

    QA: “The Softmax/Hockey Stick question”: Functions with these shapes are useful in applications where something had been roughly constant but then starts growing linearly, or vice versa, or has some other piecewise-linear behavior. Examples include the

    asked on October 14, 2019
  49. Physics

    A 275 kg piano slides 4.2 m down a 30° incline and is kept from accelerating by a man who is pushing back on it parallel to the incline. The effective coefficient of kinetic friction is 0.40 (a) Calculate the force exerted by the man. N (b) Calculate the

    asked on October 13, 2019
  50. Science

    Faraday of electrolysis

    asked on February 11, 2019
  51. math

    which of the following has the greatest value? 5/8 65% 52% 4/7 27% 79% 7/8

    asked on January 6, 2019
  52. math

    which of the following is greater than 1/2? A. 4/10 B. 2/5 C. 6/7 D. 8/15 E. 9/19

    asked on January 6, 2019
  53. Chemistry

    25cm cubes of potassium hydroxide was prepared by dissolving 11.2grams of potassium hydroxide in 250cm cubes of distilled water, was found to exactly neutralize 20cm cubes of a certain hydrochloric acid solution . Find the molarity of the acid in moles/dm

    asked on November 27, 2018
  54. Chemistry

    What volume of 0.5molar nitric acid is needed to neutralize 30cm cubes of 0.8molar sodium carbonate?

    asked on November 27, 2018
  55. Chemistry

    A solution was prepared by dissolving 72.0 g of glucose in 300.0 g of water. The ressulting solution was found to have a boiling point of 100.68C at 1 atm. Calculate the molar mass of glucose. For water Kb= 0.51 Ckg/mol. I know the molar mass of glucose if

    asked on June 8, 2018
  56. Chemistry

    Calcium chloride contains calcium and chloride ions. Write the ground-state electron configuration for the calcium ion.

    asked on March 20, 2018
  57. Chemistry

    1.If a solution absorbed violet light, what color would the solution appear to be? ________________ Calculate the concentration of a solution prepared by adding 15.00 mL of 2.00×10^−3 M KMnO4 from a buret into a 50.00 mL volumetric flask, which is then

    asked on March 20, 2018
  58. Chemistry

    10. Write out the precipitation reaction formulas: NaOH(aq)+MgCl2(aq)> a. Complete ionic reaction: b. Net ionic reaction: c. Molecular reaction: *Please could some explain step by step why and how you solve this problem I do not understand at all . Thanks

    asked on March 3, 2018
  59. Chemistry

    14. Using the equation of q = nCΔT determine the amount of energy required to raise the temperature of 24g of water 80ᵒC, with a heat capacity of 75.3 J/(mol*ᵒC )

    asked on March 2, 2018
  60. chemistry

    The material Magnesium Sulfate What mass of dry material would be needed to make an aqueous solution with a molality of 4 moles/kg solution ? What mass of water is needed? 4 (24.305+ 32.065+ (4 x 15.999)) =481.5 ?Not sure where to go from here or if the

    asked on January 17, 2018
  61. Cultural Anthro

    Contemporary anthropologists: 1 study global conflict to better understand effective conflict resolution solutions. 2 never would work to promote effective peace-keeping solutions because of their aversion to social interference. 3 only study foraging and

    asked on December 12, 2017
  62. Text study

    Who were slaves free

    asked on November 20, 2017
  63. science

    A uniform force of 30N acts on a mass 2.5kg initially at rest for 5seconds then it withdrawn and a retarding force F now acted on the mass in the direction of the motion to reduce its velocity to 12 m/s.( calculate the momentum of mass before the retarding

    asked on November 12, 2017
  64. Math

    Given that I take a piece of paper and cut it in half and then in half again. If the paper originally had an area of 187/2 in^2.What is the area of my new paper?

    asked on October 18, 2017
  65. math

    Naomi was at her house.She saw a tree.How tall is it?

    asked on May 10, 2017
  66. Calculus

    Use cylindrical shells to find the volume formed by rotating the region in the first quadrant enclosed by: y=1.2-1.4|x-12| and y=0 about the y-axis

    asked on May 3, 2017
  67. Calculus

    Use washers to find the volume formed by rotating the region enclosed by: y=1.4−2|x−13| and y=0 about the y-axis

    asked on May 3, 2017
  68. Science

    Can someone send me a link to what global warming is? Thanks

    asked on April 18, 2017
  69. Calculus

    At the scene of an accident, there are skid marks which are 200 feet long showing where a car put on the brakes. The driver swears that he was obeying the speed limit. If we assume that the car braked with a constant deceleration of 16ft/sec^2. We can

    asked on April 4, 2017
  70. math

    if you know the radius of a circle how can you find its diameter?

    asked on March 10, 2017
  71. number base help plz

    plz solve for me too hard show step payuto 123_(base4) = N_(base8 )

    asked on February 12, 2017
  72. maths equation too hard

    x^3=3^x plz help me what is the solution yes i know x=3 but how?

    asked on February 8, 2017
  73. maths equation too hard

    x^3=3^x what is x plz show step

    asked on February 8, 2017
  74. set maths

    In a survey of cars,it was found DAT 75% were old,65% were small nd 50% had been involved in an accident.8% were accident free large old cars,20% were accident free small new cars, 7% were accident free small old cars,6% were new small cars which had an

    asked on February 2, 2017
  75. sequence help plz

    5+11+17+23 +... Find the sum of the 2n term of the series plz help me show step

    asked on January 31, 2017
  76. Chemistry

    Say there is a diluted solution and we need to find the final concentration of it, using the equation M1V1 = M2V2. Does this method change, if the compound (concentration that we're trying to find), is in a solution that has already reacted with another

    asked on January 28, 2017
  77. Math

    if you were to sketch a cirlce graph for the data shown in the table below, what fraction of the circle would represent food? Expense Activities= $600 Food= $450 Souvenirs= %270 Show answer in fraction please!

    asked on January 26, 2017
  78. physics

    A car starts from rest is uniformly accelerated at 0.1m/s square untill it reaches a speed of 15m/sec square. It travels at this speed for 3mins and it returns uniformly retarded so as it come to rest 8mins after starting.plot the velocity time graph of

    asked on January 18, 2017
  79. physics

    A particle is projected with a speed of 39.2m/sec at an elevation of 30degrees.find its greatest height.

    asked on January 18, 2017
  80. ELA

    Which of the following passages from the text best illustrates Phillips ability to adapt to his blindness? A. I tried to make my eyes cut through the darkness. B. After a moment of silence, I heard the sizzle of the water as Timothy doused the torch. C. I

    asked on December 8, 2016
  81. algebra

    Show Work Use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=x^5-x^4+4x^3-4x^2-20x+18 [1.5,1.8]

    asked on June 23, 2016
  82. Chemistry

    A solution is made by dissolving 32g KCIO3 in 100g H20 at 80C. The solution is cooled to 10C. Describe what you would observe as it cooled and state what temperature this first occurs at. What mass of crystals would settle out of the solution?

    asked on June 18, 2016
  83. Geometry

    Krista was vacationing in the jungle and wanted to ride a zip line. The platform was 173ft above the ground. The angle of elevation of the zip line was 40 degrees from the ground. Approx. How long was her ride down the zip line?

    asked on February 29, 2016

    You currently drive 288 miles per week in a car that gets 24 miles per gallon of gas. You are considering buying a new fuel-efficient car for $15,000 (after trade-in on your current car) that gets 48 miles per gallon. Insurance premiums for the new and old

    asked on December 13, 2015
  85. Spanish

    Answer. Use a possessive adjective in your answer. Tus padres tienen un carro. ¿Es viejo o nuevo el carro de tus padres?

    asked on December 11, 2015
  86. Math 141

    A pair of fair 6-sided dice is rolled. What is the probability that a 3 is rolled if it is known that the sum of the numbers landing uppermost is less than or equal to 7? (Enter your answer as an exact fraction.)

    asked on November 5, 2015
  87. geography,business ,consumer studies,maths litracy

    what can I do with this subjects.what job options are available for me to study in university

    asked on November 3, 2015
  88. Math

    How can I insert 4 arithmetic means between √2 and 12/√2? How do I incorporate fractions and roots into sequences?

    asked on September 10, 2015
  89. Math

    The 6th term of an arithmetic sequence is 3 times the 2nd term. Prove that the 10th term is twice the 5th term. tn=t1+(n-1)d

    asked on September 10, 2015
  90. American History

    In Jefferson's view, George Washington's action in addressing the Whiskey Rebellion

    asked on June 30, 2015
  91. Physics

    A car, moving along a straight stretch of highway, begins to accelerate at 0.0442 m/s^2. It takes the car 30.8 s to cover 1 km. How fast was the car going when it first began to accelerate? Answer in units of m/s. I tried converting 30.8 km/sec to m/s then

    asked on June 28, 2015
  92. Physics

    If the time (up and down) the ball remains in the air is 2.14 s, find its speed when it caught. The acceleration of gravity is 9.8 m/s^2 . Neglect air resistance. Answer in units of m/s If the time the ball remains in the air is 2.27 s, find the maximum

    asked on June 28, 2015
  93. Science for ms. Sue

    If you were to walk towards a Van der Graaf generator, the effect of its electric field would get weaker as you got closer to it. A.True B.False I think it is A

    asked on March 2, 2015
  94. math

    What are the 4 concecutive even integers such that the squar of the second term is equal to the product of the first and last term

    asked on January 22, 2015
  95. How long will it take the investment to double?

    $3,600 is invested in an account at an annual interest rate of 4.8% compounded continuously. How long, to the nearest tenth of a year, will it take the investment to double in size?? Any help would be appreciated.

    asked on October 10, 2014
  96. math

    order from least to greater 4 1 over 2, 19 over 4, 37 over 8, 4 3 over 16

    asked on September 21, 2014
  97. Math HELP

    a flower was 1.6 meters high one week ago in 7 days it grew 11 centimeters find the current height of the flower 12.3 m, 1.71 m, 125 cm or 11.2 cm , i did times tables and got 17.6 and then i tried deviding but got a weird long number that wasn't on the

    asked on April 11, 2014
  98. reading

    If I got a 92 on my mid term then got a 50 on a worksheet the following day then what would be my average

    asked on March 2, 2014
  99. Accointing , Economics and Life Science

    I was wanting to find out that with the subjects l got what type of career could l have

    asked on February 21, 2014
  100. Math

    The area of a square is 36 square feet. If each side is lengthened by 4 feet, how could the perimeter of the new square be calculated? A. Divide 36 by 4 to get 9. Then add 4 to 9 to get 13 and multiply this by 4 to get the new perimeter. B. Divide 36 by 4

    asked on February 18, 2014


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