Popular questions and responses by meg
  1. chemistry

    Give the symbol of the element of lowest atomic number whose ground state has: a) Four f electrons b) a completed d subshell c) six s electrons I don't understand ground state electrons at all? Could you explain them in addition to explaining the questions

    asked on October 27, 2009
  2. PE

    Which of the following organs is where most nutrients are absorbed Large intestine *** Esophagus small intestine Stomach 2. The kidneys contains millions of tiny filtering units called Urine Villi Peristalsis *** Nephrons Help me I do not get it

    asked on October 16, 2017
  3. English

    Choose the sentence that is written in active voice. a) The paper is being written by the student. b) The student is writing the paper. c) In the English class, the paper is being written by the student. d) The paper being written by the student in English

    asked on September 2, 2020
  4. Chemistry-Equation

    How many moles of glucose, C6H12O6, can be "burned" biologically when 10.0 mol of oxygen is available?

    asked on March 5, 2010
  5. Trig

    The postal service places a limit of 84 inches on the combined lenght and girth (distance around) of a package to be sen parcel post. What Dimensions of a rectangular box with square cross-section will contain the largest volume that can be mailed?

    asked on May 12, 2013
  6. English

    Identify the sentence that is correctly punctuated. a) "Running the front line of the cafeteria isn't exactly rocket surgery" (sic), said Jerry. b) "Running the front line of the cafeteria isn't exactly rocket surgery" [sic], said Jerry. c) "Running the

    asked on September 3, 2020
  7. personal finance

    Please help me.... Match the example in Column A to the business structure in Column B. 1.) Doug and Vanessa are friends who want to start a carpet cleaning business together and share the ownership and profits. They are not concerned about personal

    asked on October 12, 2016
  8. Bussiness English

    There ________ many old books in the living room that my grandparents ________ to read. a) is/love b) are/loves c) is/loves d) are/love

    asked on September 3, 2020
  9. calculus

    A long rectangular sheet of metal, 12 inches wide, is to be made into a rain gutter by turning up two sides so that they are perpendicular to the sheet. How many inches should be turned up to give the gutter its greatest capacity?

    asked on November 15, 2010
  10. Chemistry

    What is the oxidation states for all three elements in the formula Rb2SO3 ? Is this correct?-1,+8,-2

    asked on November 22, 2007
  11. Business English

    Choose the sentence that is written in active voice. a) The math problems were given to the students. b) The students were taking a math test. c) The math test was given by the instructor. d) The math test grades were given to the students. i think C

    asked on September 2, 2020
  12. Bussiness English

    Does the hospital have ________ open position for ________ X-ray technician? a) an/ an b) an/a c) a/an d) a/a

    asked on September 3, 2020
  13. geometry

    On rainy days, Izzy goes from his house to the school by running 1.2 miles on West St, then makes a 90º turn and runs 0.5 miles on North Ave. a. If Izzy runs 7.5 miles per hour, approximately how much time will it take her to run to school on rainy days?

    asked on August 30, 2017
  14. Physics

    Two blocks M1 and M2 are connected by a massless string that passes over a massless pulley as shown in the figure. M1 has a mass of 8.25 kg and rests on an incline of 73.5°. M2 rests on an incline of 15.5°. Find the mass of block M2 so that the system is

    asked on October 14, 2015
  15. Bussiness English

    In the Miranda decision, the Supreme Court ________ that officers ________ warnings to potential criminals. a) require/provides b) require/provide c) requires/ provide d) requires/provides B

    asked on September 3, 2020
  16. Algebra 2

    The perimeter of a rectangle is 82 feet. Find the length and width of the rectangle if the length is 7 feet more than width.

    asked on September 1, 2016
  17. Chemistry

    Rank the following in terms of increasing first ionization energy. 1. Na, Mg, N, O, F 2. F, N, O, Mg, N 3. F, O, N, Mg, Na 4. O, N, F, Na, Mg 5. Na, Mg, O, N, F

    asked on November 20, 2013
  18. chemistry

    A 48.0-g sample of an element has the same number of atoms as 6.00 g Na. What is the element?

    asked on November 21, 2007
  19. Chemistry

    A 2.00g sample of a gas SX6 has a volume of 329.5 cm3 at 1.00 atm and 20 celcius. What element is X?

    asked on March 26, 2010
  20. Math

    A fertilizer covers 3/4 square foot in 1/2 hour. What is the unit rate of Square feet per hour?

    asked on November 2, 2018
  21. math

    What is Jared's favorite six-digit number if the ten digit is his favorite digit, the sum of the hundred thousand digit and the thousand digit in his number from the largest place value to the smallest place value are consecutive numbers?

    asked on February 15, 2013
  22. Calculus

    A particle moves along a line so that at any time t its position is given by x(t)=2(pi)t+cos(2(pi)t). Determine the particle's maximum velocity.

    asked on November 15, 2010
  23. College Economics

    Assume that it takes four hours of labor time to paint a room and three hours to sand a floor.If all 24 hours were spent painting, how many rooms could be painted by one worker? If a decision were made to sand two floors, how many painted rooms would have

    asked on August 28, 2007

    Which of the following is a convention that Chinese artists used in paintings? They sketched pencil outlines and then painted over them with black ink. They used one type of brushstroke to give their paintings unity and balance. They painted humans much

    asked on October 14, 2016
  25. trig

    The number of revolutions made by a figure skater for each type of axel jump is given. Determine the measure of the angle generated as the skater performs each jump. Give the answer in both degrees and radians. a. single axel: 1.5 b. double axel: 2.5 c.

    asked on September 6, 2008
  26. Physics

    Josh pulls a sled with a force of 100-N at an angle 30° above horizontal axis. The total mass of the sled and Josh’s sister is 60.0-kg. The friction coefficient between the surface and the sled:static= 0.160; kinetic= 0.100 a) Determine if Josh can move

    asked on November 5, 2017
  27. Math

    A book that is 13 in. tall is leaning against the edge of a wall. If the bottom of the book is 5 inches from the wall, how far up the wall is the top of the book?

    asked on January 27, 2014
  28. Chem - Titration

    A 100.0-mL aliquot of 0.100 M diprotic acid H2A (pK1 = 4.00, pK2 = 8.00) was titrated with 1.00 m NaOH. Find the pH at the following volumes of base added and make a graph of pH versus Vb: Vb = 0, 1, 5, 9, 10, 11, 15, 19, 20, and 22 mL

    asked on January 23, 2012
  29. math

    Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.

    asked on March 23, 2011
  30. math

    Translate the following English sentence into a symbolic sentence with quantifiers: Between any integer and any larger integer, there is a real number. (universe is real numbers)

    asked on January 29, 2011
  31. trig

    the terminal side of an angle theta in standard position coincides with the line y=5x and lies in quadrant 3. find the six trigonometric functions of theta.

    asked on November 29, 2010
  32. Calculus

    A company is designing shipping crates and wants the volume of each crate to be 4 cubic feet, and the crate's base to be a square between 1 and 1.5 feet per side. If the material for the bottom costs $5, the sides $3 and the top $1 per square foot. What

    asked on November 15, 2010
  33. Chemistry

    Which type of stoichiometric calculation does not require the use of the molar mass?

    asked on March 5, 2010
  34. English

    Select the word or phrase in the sentence that is not used correctly 1) The physician started to perform the operation, but the patient was not yet completely under anesthesia. a) Started to b) Perform c) Was not d) Completely under 2) Before his death at

    asked on October 3, 2017
  35. personal finance

    what is the form utility of a cupcake? please help and thanks!

    asked on December 22, 2016
  36. math

    Find the horizontal and vertical asymptotes of the curve. y = 4+x^4/x^2−x^4 x=? (smallest x-value) x=? x=? (largest x-value) y=?

    asked on February 11, 2015
  37. Physics

    A motorist drives north for 33.0 minutes at 77.0 km/h and then stops for 15.0 minutes. He then continues north, traveling 130 km in 1.80 h. a) What is his total displacement in km? b) What is his average velocity km/h?

    asked on February 9, 2014
  38. Chemistry

    the specific heat of aluminum is 0.900 J/g degrees celsius. how much energy is required to heat 45.0g of aluminum from 20.0 degrees celsius to 50.0 degrees celsius. a. 2840 J b. 810 J c. 1220 J d. 2030 J

    asked on October 16, 2011
  39. calculus

    f(x) = tan^2x+ sinx then f ' (pi/4) =

    asked on February 1, 2010
  40. chemistry

    When 50 g of silicon dioxide is heated with an excess of carbon, 32.2 g of silicon carbide is produced. what is the percent yield of this reaction? How many grams of CO gas are made?

    asked on October 19, 2009
  41. physics

    An object is thrown straight up. At the same instant that the object reaches its maximum height, a second object is dropped from this maximum height. Which object hits the ground first and why? Also, a ball is thrown straight up. If the ball's initial

    asked on September 13, 2008
  42. Chemistry

    What type of orbital is designated by the quantum numbers n=3, l=1, and magnetic number=0 ? 1f 3s 3p 4p give an explanation for answer

    asked on December 3, 2007

    Ms. Sue was very helpful with this question,but now one of my friends disagrees. I am more confused than ever. Please help. The use of a plant crop to harness the sun's energy for conversion to energy sources is termed _________. Ms. Sue explained to me

    asked on May 30, 2007

    I posted this earlier but received no response. It's a tough question. Does anyone know a web site I can go to? It is estimated that industires and sewage treatment facilities discharge into the Chesapeake an amount of waste water equal to _____% of the

    asked on May 17, 2007
  45. math

    A necklace is 60 centimeters long and the beads on the necklace are 50 milliliters apart. How many beads are on the necklace? Surely you don't mean 50 milliliters. Surely you mean milliMeters. 50 mm = 5 cm. That makes it easy to calculate IF the diameter

    asked on September 24, 2006
  46. Chemestry

    The compound iron (II) chloride trihydrate has ____ mole(s) of water for every ____ mole(s) of ionic compound. three, two two, three three, one one, three

    asked on August 9, 2017
  47. art

    a collector enjoys artwork that includes realistic images of geographic feautres such as rivers, mountain , and plains. Which topic is he most likely to build his collection around? A) land and animal art B) map art C) architectural designs D) landscape

    asked on May 4, 2017
  48. Math

    I need help please. Laurie left home and ran to the lake at 10 mi/h. she ran back home at 8 mi/h. If the entire trip took 27 minutes, how far did she run in all?

    asked on May 2, 2017

    A skier is gliding along at 2.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 ∘ incline. His speed at the bottom is 15 m/s . a).What is the length of the incline? b).How long does it take him to reach the bottom? (Please show work)

    asked on October 13, 2015
  50. Chem

    Set up a Hess’s law cycle, and use the following information to calculate ΔH∘f for aqueous nitric acid, HNO3(aq). You will need to use fractional coefficients for some equations. 3NO2(g)+H2O(l)→2HNO3(aq)+NO(g) ΔH∘ = -137.3 kJ

    asked on June 17, 2014
  51. Math (Trig)

    a ferris wheel has a radius of 10m and is one meter above the ground. If the ferris wheel makes 1 revolution every 20 seconds, write an equation that gives the height above the ground of a person on the ferris wheel as a function of time if that person

    asked on February 27, 2011
  52. chemistry

    If you wanted to hydrolyze 1 mole of PLA into 1 mole of sodium lactic acid, how many moles of sodium hydroxide would you need?

    asked on February 22, 2011
  53. math

    Prove that if x and y are nonnegative real numbers, then (x+y)/2 ≥ sqrt(xy). Use the technique of working backward from the desired conclusion. Where in the proof do we use the fact that x and y are nonnegative?

    asked on February 3, 2011
  54. 6th grade math

    use compatible numbers to estimate the quotient: 7.35/6 answer: 1.20 is this wrong if so what did i do wrong? Thanks

    asked on November 8, 2010
  55. algebra

    are the following lines parallel, perpendicular or neither 4x+5y=7 5x+4y=10

    asked on October 31, 2010
  56. Physics

    a woman on a bridge 75 high sees a raft floating at a constant speed on the river below.

    asked on October 7, 2010
  57. chem

    How many grams of CH3COOH are needed to make 4.2 liters of aqueous solution of pH=3.4?Be sure to back correct from equilibrium molecular acid molarity to starting molecular acid molarity.

    asked on October 6, 2010
  58. Chemistry

    How many moles of air are there in flask with a volume of 125mL if the pressure is 745 mm Hg and the temperature is 22 celcius ?

    asked on March 25, 2010
  59. chemistry

    Nitrous oxide (N2O) is used as an anesthetic. The pressure on 2.50 L of N2O changes from 105kPa to 40.5 kPa. If the temperature does not change, what will the new volume be? I know the Boyle's law is P1 x V1 = P2 x V2

    asked on March 4, 2008
  60. Social studies help please

    Why did the United States become involved in Mexico’s civil war (select 2 answers) -Relations had weakened between United States and the new government**** -Mexico was unable to end war without US intervention*** -the United States provides troops to

    asked on January 17, 2018
  61. Math

    the probabilities that a customer will rent 0 1 2 3 and 4 DVDs on a single visit to the rental store are 0.15, 0.25, 0.3, 0.25 and 0.05, respectively. construct a probability distribution for the data and draw a graph for the distribution

    asked on July 19, 2017
  62. I dont know

    the idea that religion and government should be seperate is known as A) secularism B) democracy C) communism D) fascism i think it is D but if anyone can help me i go to connexus and i need help

    asked on May 3, 2017
  63. science

    How do we identify or interpret when to get the screen away or towards the mirror in different situations? Please tell me diff. cases---phy practicals

    asked on March 6, 2017
  64. Algebra 2

    A farmer wants to set up a pigpen using 40 feet of fence to enclose a rectangular area of 51 square feet. Find the dimensions of the pigpen.

    asked on August 31, 2016
  65. math

    Paul spent a half hour practicing piano and 3/8 hour practicing guitar how much time did he sPend in all practicing?

    asked on April 28, 2016

    A sprinkler mounted on the ground sends out a jet of water at a 20 ∘ angle to the horizontal. The water leaves the nozzle at a speed of 11 m/s . How far does the water travel before it hits the ground?

    asked on October 16, 2015
  67. math

    Find the horizontal and vertical asymptotes of the curve. y = 2x^2+x−1/x^2+x−42 x=? (smaller x-value) x=? (larger x-value) y=?

    asked on February 11, 2015
  68. Geometry

    A tree casts a 36 ft shadow. The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest tenth.

    asked on May 16, 2014
  69. Math puzzle

    Make the number 500 by mathematically combining eight 4's. You may use addition, subtraction, multiplication and division. You may also "push" them together.(44)

    asked on March 29, 2013
  70. Algebra

    You put $1700 into an account at 8% per year compounded continuously. a) How long will it be until you have $2000? b) What is the doubling time for this money?

    asked on March 27, 2013
  71. Financial accounting

    Laird Company sells coffee makers used in business offices. Its beginning inventory of coffee makers was 200 units at $41 per unit. During the year, Laird made two batch purchases of coffee makers. The first was a 295-unit purchase at $46 per unit; the

    asked on October 21, 2012
  72. math

    Find a decimal approx for S (sub 15) in the geometric sequence with first term 83 and common ratio 1.07

    asked on May 22, 2012
  73. science

    a box is dropped off a tall building. At what time after release is it falling 15 m/s?

    asked on April 13, 2012
  74. physics

    Consider two cars, a very large one like a Hummer (mass 5m) and a small one like a Mini Cooper (mass m), both starting at the same point race toward the edge of a cliff. Assume that each car is accelerated by a constant force (same size force on each car)

    asked on February 15, 2012
  75. Math Calculus

    The foot of a 30-foot ladder is being pulled away from a vertical wall at a rate of 1 foot per minute. When the top of the ladder is 6 feet from the ground, at what rate is the top of the ladder moving down the wall?

    asked on July 8, 2011
  76. Algebra

    a roof rises 2.4 feet vertically and 7.3 feet horizontally. what is the grade of the roof?

    asked on April 13, 2011
  77. math

    Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.

    asked on March 23, 2011
  78. chemistry

    suppose you have two 1-L flasks one containing N2 at STP the other containg CH4 at STP how do these systems compare with respect to a)number of molecules B)density c)average kinetic energy of the molecules d)rate of effusion through a pinhole leak?

    asked on January 26, 2011
  79. HELP!! MATH

    A boater finds herself 4 miles fromm the nearest point on a straight shore line whech is 6 miles from a shoreside motel. She plans to row on shore and then walk to a motel. If she can walk at 3 mph, at what speed must she be able to row so that the

    asked on November 15, 2010
  80. Calculus

    What is the x-coordinate of the point on the curve y=e^x that is closest to the orgin?

    asked on November 15, 2010
  81. Vectors

    Adam can swin at a rate of 2km/h in still water. At what angle to the bank of a river must he head if he wants to swim directly across the rivver and the current in the river moves at the rate of 1 km/h?

    asked on May 6, 2010
  82. Chemistry-Equations

    Iron(III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 16.7 g of Fe reacts completely with oxygen?

    asked on March 5, 2010
  83. math

    A is the set of all even natural numbers, and B is the set of all odd natural numbers. Describe a universal set for A and B. Also, with respect to this universal set, give a relationship between A and B.

    asked on November 22, 2009
  84. math

    Decide whether or not the set is closed under addition. { 2, 4, 6, 8, . . .}

    asked on November 22, 2009
  85. math

    How can you use a proportion to solve a percent word problem? Explain in your own words.

    asked on November 22, 2009
  86. algebra 2

    Directions: The focus and directrix of a parabola are given. Write an equation for each parabola. (2,4) y = 6 May you explain the procedures on how to solve this equation? Please be detailed on each step.

    asked on April 2, 2008
  87. Math

    I have an equation to solve for the value of "c" 5/6 + 3/4 = 1/18 -6c -2/3 +7c +1/9

    asked on November 29, 2007
  88. Math

    A square tile has length of 8.0 cm. What is the area of the title in square meters?

    asked on November 22, 2007
  89. Math

    Can someone explains this please cuz i dont understand it that well. What is the final amount in an account after 3years compounded annually with an initial amount of $3,200 and with an annual rate of 0.25%

    asked on January 25, 2020
  90. Physics

    How much horsepower would the Challenger Hellcat Redeye Widebody need to run the speed of sound arrive before the sound of its legendary engine arrives? Pro Tips Assume Stock Redeye Widebody curb weight Assume no wind Assume no driveline losses Redeye

    asked on November 18, 2019
  91. Chemistry

    When potassium cyanide reacts with acids a deadly poisonous gas hydrogen cyanide is produced calculate the mass in grams of hydrochloric acid molar mass 36.46 grams per mole needed to completely react with 0.140 grams of potassium cyanide molar mass 65.12

    asked on November 12, 2019
  92. Biology

    The Salmonella outbreak is linked to cereal. The cereal would be known as... a. Fomite b. Vehicle c. Vector d. Chronic carrier I think it’s B since inanimate objects that carry infection are vehicles of transmission but couldn’t it also be A too?

    asked on October 11, 2018
  93. history

    Envision the world of the story( Revolutionary War) by paying attention to the setting, characters and events and how the differ from our lives today?

    asked on January 11, 2018
  94. English

    I have to do assignment to compare revolutionary war setting, characters and events then and now. how to do this? plz help.

    asked on January 11, 2018
  95. Physics

    Could someone please help me with my homework problem... a) Give the equation for terminal speed in the variables from Stoke's Law, and the densities of the sphere Ps and the fluid P1. b) Find the viscosity of motor oil (in kg/m/s) in which a steel ball of

    asked on November 7, 2017
  96. Physics

    a) Give the equation for terminal speed in the variables from Stoke's Law, and the densities of the sphere Ps and the fluid P1. b) Find the viscosity of motor oil (in kg/m/s) in which a steel ball of radius 0.85mm falls with a terminal speed of 4.32cm/s.

    asked on November 1, 2017
  97. Physics

    In an immersion measurement of a boy’s density, he is found to have an apparent weight of 6.86-N when completely submerged in water with lungs empty. The mass of the boy is 68.0-kg in air. The density of water is 1000-kg/m^3. a)Determine the density of

    asked on October 30, 2017
  98. History

    I need help finding 3 of the principals of economics from the passage below. The principals are people choose, all choices involve cost, and people respond to incentives. The passage: One of the first books, written in 1866, on the civil war was written by

    asked on September 18, 2017
  99. Trigonometry

    Someone please help!!!? 7. What is 1/cot(x) in terms of sine? This is what I've got so far: sin = 1/csc tan = 1/cot 1+cot2(x) = csc2(x) 1/1+cot2(x) = 1/csc2(x)

    asked on March 20, 2017
  100. Trigonometry

    5. If a trig equation has one answer, how many answers will it have? (Provided you do not restrict the domain?) 6. Why are the graphs of the inverse functions restricted to one period of the function? I only need to answer these two to finish my homework

    asked on March 18, 2017


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