Popular questions and responses by Savannah
  1. chemistry

    calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.74 x 10^14 Hz. i have no idea how to even set this up. please someone help.

    asked on January 21, 2013
  2. Physics

    A boat moves through the water with two forces acting on it. One is a 1500 N forward push by the motor, and the other is an 1400 N resistive force due to the water. (a) What is the acceleration of the 1100 kg boat? m/s 2 (b) If it starts from rest, how far

    asked on October 7, 2011
  3. Chemistry

    The reaction has an equilibrium constant of Kp=2.26x10^4 at 298 K. CO(g) + 2H_2(g) CH_3OH(g) Calculate Kp for the reactions and predict whether reactants or products will be favored at equilibrium. A. CH_3OH(g) CO(g) + 2H_2(g) B. 1/2CO(g) + H_2(g)

    asked on April 16, 2014
  4. cheistry

    Write a net ionic equation for the overall reaction that occurs when aqueous solutions of hydrosulfuric acid and potassium hydroxide are combined. Assume excess base.

    asked on November 17, 2011
  5. history

    Why did Japan attack China in 1937, launching the Second Sino-Japanese War? to spread communism to other parts of Asia to secure natural resources for its growing economy and military to secure a buffer area against a potential Soviet attack on Japan to

    asked on February 25, 2020
  6. history

    What initiative did Americans take to benefit the war effort during World War II? Americans created bomb shelters in case of a land attack by the Japanese. Americans trusted those of Japanese origin to help in the war effort. Americans of different

    asked on February 28, 2020
  7. chemistry

    Identify the element that has a ground state electronic configuration of [Ar]4s23d104p 4

    asked on November 15, 2016
  8. chemistry

    Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reaction:

    asked on December 19, 2012
  9. Educational Tech

    Before Katie turns in the paper she typed she wants a peer to review it and give her feedback. Katie uses her all in one printer to scan her edit,prints, and send them to her friend. An all in one printer is Choose two. 1. Input device 2. Output device

    asked on August 23, 2016
  10. chemistry

    The radius of a barium atom is 217 pm. How many barium atoms would have to be laid side by side to span a distance of 4.33 mm?

    asked on September 25, 2011
  11. Math

    A right prism whose bases are regular nonagons. Find the measure of the dihedral angle between adjacent lateral faces.

    asked on April 17, 2020
  12. Math

    If a car travel 12 miles on 0.3 gallon of gas. How far can it travel on 1gallon?

    asked on August 30, 2016
  13. chemistry

    The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final volume of 0.88L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?

    asked on December 19, 2012
  14. Chemistry

    Which reaction below represents the second ionization of Lr?

    asked on November 15, 2016
  15. Chemistry

    The total mass that can be lifted by a balloon is given by the difference between the mass of air displaced by the balloon and the mass of the gas inside the balloon. Consider a hot air balloon that approximates a sphere 5.00 m in diameter and contains air

    asked on December 16, 2012
  16. physics

    Two objects with masses of 3.00 kg and 7.00 kg are connected by a light string that passes over a frictionless pulley (a) Determine the tension in the string. .N (b) Determine the magnitude of the acceleration of each mass. .m/s2 (c) Determine the distance

    asked on October 14, 2011
  17. Physics

    A car with good tires on a dry road can decelerate at about 5.0m/s/s when braking. If the car is traveling at 55miles/hour, how much time does it take the car to stop? 55 mph = 80.7 ft/s = 24.6 m/s Divide the initial speed by the deceleration rate to get

    asked on September 18, 2006
  18. Pre-Algebra

    Hi I’m having trouble with this math topic How changing a value affects the mean and median. My math problem is The monthly rent (in dollars) paid by 10 people are given below. The numbers are 795, 935, 960, 995, 1025, 1030, 1050, 1090, 1105

    asked on June 29, 2020
  19. Math

    Determine the measure if the interior angle at vertex A. ———————- 4x 4x 4x 4x 2x 2x

    asked on April 17, 2020
  20. history

    In what way was 1963 a turning point in the civil rights movement? The movement was undermined for its links to socialist and sympathy for the Soviet Union. The movement gained legitimacy when the 14th and 15th Amendments were ratified. The movement was

    asked on March 19, 2020
  21. chemistry

    How much heat is necessary to change a 52.0 g sample of water at 33 degrees celsius into steam at 110 degrees celsius?

    asked on December 17, 2012
  22. Accounting

    What is the maturity value of a 120-day, 4 % note for $ 18,000

    asked on June 12, 2011
  23. Math

    What kind of graph is two circles put together called?

    asked on November 30, 2010
  24. math

    what is 150 divided by 2

    asked on April 7, 2010
  25. math

    if albert baked 60 cookies and gave 7/12 away how many cookies does he have left

    asked on April 7, 2010
  26. Math Posttest Connexus 09:Posttest 9:Solving Two-

    During a three-day premiere, a theater must sell an average of 200 tickets per night to make a profit. For the first two nights, 206 and 185 tickets were sold. How many tickets must be sold for the third night for the theater to make a profit? A) 197 B) 5

    asked on November 13, 2017
  27. anthropology

    I am so confused!! Can anyone help me by explaining what it means by international development? Provide 2 reasons in support and 2 against the position that anthropologists should be involved in applying their knowledge and skills to the goals of

    asked on September 26, 2017
  28. geometry

    Write the equation of a line in slope intercept form that passes through (2,4) and (5,4).

    asked on August 2, 2015
  29. chemistry

    Calculate the energy of a photon of electromagnetic radiation at each of the following wavelengths.503 nm(wavelength of maximum solar radiation) i need help please!

    asked on January 25, 2013
  30. chemistry

    The mass of a sample of boron atoms is 5.60 g. How many boron atoms are in this sample? Show your work here.

    asked on December 19, 2012
  31. Algebra

    The area of a circle is given by the formula A+pier^2, where r is the radius. If increasing the radius of a circle by 1 inch gives the resulting circle an area of 100pie square inches, what is the radius of the original circle?

    asked on March 12, 2012
  32. Math

    A mutual funds invests 73,400 in a highway bond and earns 13% per year in the investment. How much money is earned per year?

    asked on April 22, 2020
  33. Math

    If the length of a rectangle is increased by 10% and the width is decreased by 10%, is the are changed? If so, does it increase or decrease and by what percent? Please explain, I’m so confused

    asked on April 18, 2020
  34. Math

    Find the arc length and leave answer in terms of pi. 13.An arc with a central angle is 184 degrees and radius 8m

    asked on April 17, 2020
  35. chemistry

    A patient is prescribed 0.210 mg of a drug that is available in 70 μg tablets. How many tablets are needed? (Remember that the number of significant figures does not matter because the number of tablets is being counted.)

    asked on February 1, 2017
  36. Art

    Which style of art is often described as a comic book style? A. Cubism B. Fauvism C. Op Art D. Pop Art ••• D is my answer.

    asked on January 17, 2017
  37. Math

    Six people shared 3/5 pound of peanuts equally. What fraction of a pound of peanuts does each person receive

    asked on December 7, 2016
  38. math

    Lia has 5 basketball courts that she is dividing each into 's for a tournament. How many sections will she have?

    asked on January 11, 2016
  39. Math

    Write a rule for the function represented by the table. x y 0 14 1 29 2 44 3 59

    asked on December 8, 2015
  40. English

    Which type of figurative language is used in the following line from John F. Kennedy's inaugural address to the nation? "The torch has been passed to a new generation of Americans." A. Allusion B. Simile C. Personification D. Metaphor

    asked on November 13, 2015
  41. Biology ASAP

    1.)Neurons are classified bye the... (Answer) Direction they carry impulses. I think its because the impulses go to different places, to its different neurons. 2.) Your alarm wakes you up in the morning and reminds you to get ready to go to school. Which

    asked on May 28, 2015
  42. biology

    Which photosystem-1 or 2-most likely evolved first?

    asked on November 21, 2013
  43. 6th grade science

    How do the differences in the way land and water absorb and release energy cause local winds?

    asked on October 27, 2013
  44. Chemistry

    What mass of Carbon dioxide is produced from the complete combustion of 4.60x10^-3g of methane?

    asked on October 24, 2013
  45. chemistry

    How many orbitals are contained in the n=2 level? Give the l and ml values of each of them.

    asked on January 28, 2013
  46. chemistry

    The air within a piston equipped with a cylinder absorbs 570J of heat and expands from an initial volume of 0.12L to a final volume of 0.88L against an external pressure of 1.0 atm. What is the change in internal energy of the air within the piston?

    asked on December 19, 2012
  47. Chemistry

    The total mass that can be lifted by a balloon is given by the difference between the mass of air displaced by the balloon and the mass of the gas inside the balloon. Consider a hot air balloon that approximates a sphere 5.00 m in diameter and contains air

    asked on December 14, 2012
  48. Physical science

    A hot iron ball is dropped into 200g of cooler water. The water temperature increases by 2.0 degrees C and the temperature of the ball decreases by18.6 degrees C. What is the mass of the iron ball?

    asked on October 16, 2012
  49. chemistry

    When 0.558g of biphenyl (C_12H_10) undergoes combustion in a bomb calorimeter, the temperature rises from 25.7^\circ C to 30.1^\circ C. Find DeltaE_rxn for the combustion of biphenyl in kJ/mol biphenyl. The heat capacity of the bomb calorimeter, determined

    asked on December 19, 2012
  50. math

    At a given time, the height of an object is directly proportional to the length of the shadow that is cast on the ground. A person 6 feet tall casts a shadow 1 foot long at noon. a) What is the length of the shadow cast by a flagpole known to be 20 feet

    asked on January 26, 2012
  51. Calculus AB

    A particle is moving along the x-axis so that at time t its acceleration is a(t)=ðcos(ðt) At time t=1/2, the velocity v of the particle is 1/2. Find the velocity of the particle at any time t. I think I got that right, as sinðt + C. Now it wants the

    asked on January 20, 2012
  52. Calculus AB

    Find a, b, c, and d such that the cubic function ax^3 + bx^2 + cx + d satisfies the given conditions Relative maximum: (2,4) Relative minimum: (4,2) Inflection point: (3,3) So this is what I have so far: f'(x) = 3a^2 + 2bx + c f''(x) = 6ax + 2b f(2) = a(8)

    asked on November 18, 2011
  53. Chem

    Does any solid PbCl2 form when 3.1 mg NaCl is dissolved in 0.228 L of 0.12 M Pb(NO3)2. Find the Qsp.

    asked on November 4, 2011
  54. science

    jason weighs 10kg. the force of gravity is 9.8 m/s2. what is the amount of force jason is applying to the ground when standing?

    asked on October 6, 2011
  55. science

    jason weighs 10kg. the force of gravity is 9.8 m/s2. what is the amount of force jason is applying to the ground when standing?

    asked on October 6, 2011
  56. math

    which is greater and less than

    asked on January 6, 2011
  57. contemporary Math

    If there are 2 red disks numbered 1 through 2, and 6 yellow disks numbered 3 through 8, find the probability of selecting a red disk, givent that an odd-numbered disk is selected?

    asked on November 17, 2010
  58. Algebra 1

    how do i work out the equation S= B + 1/2Pl solving for l

    asked on November 3, 2010
  59. Media Studies

    Hi, I am writing an essay for my media studies class on the topic; Has digital technology made professional journalists obsolete? What is the role of journalism in a digital society? Can anyone give me ideas for arguments I can come up with or evidence.

    asked on October 25, 2010
  60. Chem

    Explain why chemists might want to prepare substituted hydrocarbons. Give two examples of possible substitutions.

    asked on February 4, 2010
  61. Science

    If you walk 2 km from your home to a store and then back home, what is your displacement?

    asked on April 24, 2020
  62. Math

    Write the following as a sum using power of ten to show place value. 0.300398

    asked on April 22, 2020
  63. Math

    John claimed he had a garden twice as large as Al’s rectangular shaped garden that measured 15ft by 30ft. When they visited johns rectangular shaped garden they found the measurements to be 18ft by 50ft. Al claimed that it could not be twice as large

    asked on April 18, 2020
  64. Math

    Find the circumstance. Leave your answer in terms of pi. 12. A semicircle with a diameter of 25 mi

    asked on April 17, 2020
  65. Math

    Describe the steps you would use to subtract 7.6 from 20.39

    asked on April 8, 2020
  66. Math

    Tell whether the following statement is always,sometimes, or never true for numbers greater than 0. Explain. In equivalent ratios, if the numerator of the first ratio is greater than the denominator of the first ratio, then the numerator of the second

    asked on November 7, 2019
  67. biology

    Membranes found inside and around chloroplasts divide them into compartments. This is useful because it allows __________. the three stages of the Calvin cycle to be kept separate a proton gradient to be produced chlorophyll not to come into contact with

    asked on November 7, 2019
  68. Physics

    A place kicker kicks a football at an angle of 42 degrees above the ground with a speed of 22 m/s. A) find time to max. height? B) find time to the ground? C) find max. height of the ball? D) find the horizontal displacement of the kickoff?

    asked on October 8, 2019
  69. Algebra 2

    Hi I’m having trouble with a math question. If someone could help me out on how to do the whole problem it would be greatly appreciated. The math problem is below: One pump can drain a pool in 5 minutes. When a second pump is also used, the pool only

    asked on August 10, 2019
  70. Math

    The surface area of the top surface of the water in a circular swimming pool is about 206 square feet. Estimate the radius of the pool, to the nearest foot.

    asked on July 22, 2019
  71. Math

    I have a rectangle and i have to find the area using scientific notation and standard form. The length is 1.2 x 10^5 and the width is 2 x 10^2. Thanks!

    asked on April 29, 2019
  72. MATH

    Explain how x = 5 is different than x > 5.

    asked on February 10, 2019
  73. Math

    There are 27 animals in a barn. There are a combination of cows and roosters. Altogether there are 78 legs. How many of each animal?

    asked on February 8, 2019
  74. Literature

    I need help writing 3 paragraphs for the epic beowulf

    asked on November 13, 2018
  75. Chemistry

    The entire volume of a balloon is filled with air. However, over time, the balloon becomes soft as the air pressure inside it decreases. According to the gas laws, which answer choice best describes the cause for the decrease in the balloon's air pressure?

    asked on September 20, 2018
  76. Geometry

    Hello! I'm not really sure how to solve this question, and I was wondering if I could have some assistance on how to solve it? Any help it appreciated! Thanks! Question: What is the exact value of cos 30°?

    asked on April 27, 2018
  77. algebra

    if a function consists of the set of ordered pairs {(0,1),(1,2),(2,5),(3,10)}, what is the range of the function? -{0,1,2,3} -{0,2,5,10} -{1,2,5,10} -{1,1,3,7}

    asked on February 16, 2018
  78. Math

    Identify and describe a part of your model that shows one thousandth. Explain how you know.

    asked on November 28, 2017
  79. Math Posttest Connexus 09:Posttest 9:Solving Two-

    Your school is planning a banquet. The cost of renting a function room is $240. The cost of food is $13 for each person attending. Write an expression for the total cost for p people. Then evaluate your expression for 58 people.

    asked on November 13, 2017
  80. social studies

    Which could be a reason for the Southern economic worth being so much higher than that of the New England and the Middle Colonies?

    asked on September 28, 2017


    asked on July 31, 2017
  82. Biology

    Are lysosomes present in a plant cell?

    asked on July 27, 2017
  83. Entrepreneurship

    What are the main components of Operations Plan in a business plan? Please state the content of the following A. A description of the company's operation B. Flow of Orders for Goods and Services

    asked on July 27, 2017
  84. Math

    in the election 46% of the class voted for Celina. if there are 50 members in the class, how many votes did Celina receive? please keep in mind I have switched classes and do not know some of the content that they have learned before I came to the class

    asked on April 18, 2017
  85. Algebra 1

    How do I find the minimum and maximum possible measurements of an ostrich egg that is 1.6 kilograms to the nearest tenth of a kilogram

    asked on April 5, 2017
  86. Social Studies

    Question 1 (1 point) How have residents of Canada's eastern coast dealt with changes in the fishing industry? a They have banned aquaculture. b They concentrated on other economic activities. c They have completely given up fishing. d They only fish for

    asked on March 17, 2017
  87. chemistry

    Blue copper sulfate pentahydrate (CuSO4.5H2O) crystals were heated to give the white monohydrate. What percentage of water was lost? (molar mass of CuSO4.5H2O is 250.5 g/mol)

    asked on November 14, 2016
  88. Algebra

    What is an equation in point slope form for the line perpendicular to y=7x+3 and contains (-6,-3) ? A)y+6=-1/7 (x+3) B)y+3=7 (x+6) C)y+3=-1/7 (x+6) D)y+3=7 (y+6)

    asked on September 22, 2016
  89. Math

    Mae is making cookies. To make 3 dozen she needs 3 1/4 cups of chips. How many cups of chip will she need to make 5 dozen cookies?

    asked on April 19, 2016
  90. Physics

    How would I express the magnetic force in terms of Fmax if the angle between the velocity and the magnetic field direction is 10 degrees? I know the magnetic force equation is F=qVBsin(theta), but how do I put it in terms of maximum force (Fmax)?

    asked on March 22, 2016
  91. health part 2

    Genital HSV-1 outbreaks recur ________ regularly than genital HSV-2 outbreaks. A. More B. Somewhat more C. Less D. None of the above B?

    asked on March 22, 2016
  92. Science

    Why is the use of the inquiry process a practical way to approach science?

    asked on August 30, 2015
  93. geometry

    I would love for someone to check my work on the seven problems that I did. I would be eternally grateful. I am going to list my problems and answers. Even if you only want to check one of them, that would be great. 1. Write an equation of a line in point

    asked on August 2, 2015
  94. POL201 American National Government

    Question 1.1. Despite the greater federal authority in the federal relationship, federalism is still important for all the following reasons except that (Points : 1) it provides the best means of developing a vast country because it allows for

    asked on April 15, 2015
  95. chemistry

    You have 14.0mL of a 0.12M NaOH solution. How many moles of HCl will it take to neutralize this solution?

    asked on March 1, 2015
  96. math

    how many 4 1/2-feet pieces of rope can be cut from a 48-foot piece of rope?

    asked on November 3, 2014
  97. Chemistry

    Calculate Kc. CH_4(g) + H_2O(g) CO(g) + 3H_2(g) Kp= 7.7 x 10^24 at 298K. Should I use the formula Kp= Kc(RT)^Deltang If so I have no idea where to start.

    asked on April 16, 2014
  98. biology

    Which photosystem-1 or 2-most likely evolved first?

    asked on November 16, 2013
  99. math

    Which statement is true? A.The sum of two positive integers is sometimes positive, sometimes negative. B.The sum of two negative integers is always negative. C.The sum of a positive integer and a negative integer is always positive. D.The sum of a positive

    asked on September 24, 2013
  100. Math

    Find the difference: 3-(-9) A. -12 B. -6 C. 6 D. 12 I got the answer on (D)12 but I am not 100% sure becuase they ask the difference, not the sum.

    asked on September 24, 2013


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