Questions Asked on
May 22, 2013

  1. geometry

    Pllllleeeaaasssssssseeeee help me with this math fast! a. Find x. The figure is not drawn to scale. b. Is the triangle equilateral, isosceles, or scalene? Explain. Image at imgur . com / 6y2f9a3

    asked by Neko Boy
  2. math

    Represent the above relationship between the number of triangles and the perimeter of Of the figures they form by filling in the table below. Perimeter = a + b + c Number of Triangles Perimeter 1 6 + 6 + 5 = 17 2 3 .

    asked by shona
  3. Chemistry

    Write a procedure to demonstrate the effect of higher concentrations of HCl on its rate of reaction with antacid tablets. I have HCl with a concentration of 1.0 mol/L. This is what I have so far. Are my concentrations correct for this procedure? E is my

    asked by Carolyn
  4. math

    Justine earned $25,000 during the first year of her job at city hall. After each year she received a 6% raise. Find her total earnings during the first five years on the job.

    asked by ll
  5. physics

    car P travels due East along a straight highway at a constant speed of 30m/s. at 9:00am , P passes Exit 17. At precisely the same moment, car Q passes Exit 16, traveling due West as constant 26m/s. Slightly later, car P and car Q pass the same point.

    asked by kelsey
  6. Algebra

    You are building a rectangular deck. The area of the deck should be 250 ft squared. You want the length of the deck to be 5 ft longer than twice its width. What should the dimensions of the deck be? My work: 250=2x(x+5) Is this correct so far?

    asked by Kate
  7. physics

    water flow over a falls 12.5m high. If the potential energy of the water is all converted to thermal energy calculate the temperature difference between the water at the top and buttom of the falls.

    asked by Nathan siafa
  8. Chemistry

    what volume of oxygen is needed to react with solid sulfur to form 6.20 L of sulfur dioxide according to the reaction S(s) + O2(g) yield SO2(g)

    asked by Anonymous
  9. gen chem 1

    You carefully weigh out 20.00g of \rm CaCO_3 powder and add it to 81.00g of \rm HCl solution. You notice bubbles as a reaction takes place. You then weigh the resulting solution and find that it has a mass of 92.80g . The relevant equation is \rm

    asked by bc
  10. Calculating Critical angle PLEASE HELP

    Calculate the critical angle between flint glass and air assuming that index of refraction of the glass is 1.61.

    asked by Mike Jones
  11. math

    Alex bought twice as many pears as apples. He bought 4 more pears than oranges. He bought 6 apples. How many oranges did Alex buy?

    asked by ashlynn
  12. algebra

    Determine whether the following relation represents a function. If the relation is a function then state domain and range? {(-1,-6),(2,-6),(3,-6),(4,-6)} Does the given relation represents a function? What is domain?

    asked by Sharday
  13. Physics

    The circuit below consists of three identical resistors each with resistance R=7 Ohm, two identical batteries with emfs E=9 V, and a capacitor with capacitance C=651 μF. The capacitor is initially uncharged at t = 0. (a) After a very very long time,

    asked by Annoyingmous
  14. physics

    a 2400kg vehicle travelling north at 10.0m/s collides with a 500kg vehicle that is travelling east at 20.0m/s if the 2 vehicles lock together, what is their speed just after the collision

    asked by Anonymous
  15. maths

    A wheel makes 200 revolutions in 2 minutes. Find the measure of the angle it describes at the center in 24 second s. (In radian)

    asked by Anonymous
  16. physics

    A runner dashes from the starting line (x=0) to a point 134 m away and then turns around and runs to a point 26 m away from the starting point in 16.8 seconds. To the nearest tenth of a m/s what is the average speed? and what is the velocity of the runner.

    asked by giggles24
  17. chemistry

    If you add a metal piece to excess acid, what of listed factors below will increase, decrease, or have no impact on how fast a reaction happens? a) lower molarity (concentration) of a solution b) higher molarity (concentration)of a solution c) increase

    asked by K
  18. chemistry

    A solute is added to water and a portion of the solute remains un-dissolved. When equilibrium between the dissolved and un-dissolved solute is reached, the solution must be

    asked by berta
  19. hazard bctcs

    You are responsible for planning the parking needed for a new 256 unit apartment complex, and you're told to base the needs on the statistic "average number of vehicles per household is 1.3" If the owner wants parking that will accommodate 73% of all the

    asked by haley
  20. math

    i need help! my last math question cant figure out! whats the rule for input 3 output 9 input 4 output 16 input blank output 25 input 6 output blank input 10 output 100, thank you been stuck for over 30 minutes!!!!

    asked by lillie
  21. Physics

    Electric charge charge is distributed uniformly along a thin rod of length "a", with total charge Q. Take the potential to be zero at infinity find the potential at P. If z>>a, what would be the potential at p? From potential find the electric field at

    asked by Anne
  22. maths

    A letter is picked at random from the English alphabet. Find the probability that the letter : a) Appears in the word GEOMETRY

    asked by arzam
  23. physics

    a body moves in such a way that has a dislacement of 12m towards east,5m towards the north and then 9m vertically upwards. compute the magnitude of its resultant displacement.

    asked by manoj
  24. TRIG Help help help test tommarow

    A TV tower stands on top of the Empire State building. From a point (on the ground) 1150 feet from the base of the building, the angle of elevation to the top of the TV tower is 52 degrees. If the building is 1250 feet tall, what is the length of the TV

    asked by Precious
  25. geometry!!!! PLEASE HELP!!!!

    Bret and Shawn are playing a game where each turn the players roll a 20-sided die fair and then add the number they get to their score. The winner is the player with the highest score at the end of the game (there may be a tie). Before the last turn, Shawn

    asked by glo
  26. Physics

    What is the electric force between a +2 µC point charge and a –2 µC point charge if they are separated by a distance of 5.0 cm? Show your work. (µC = 1.0 × 10–6 C)

    asked by Staci
  27. Science

    To determine the boing point of a liquid, a student heats 10 mL of the liquid in a test tube and records the temperature every minute for 20 minutes. In this example, time is the what? The choices are: Independent variable dependent variable hypothesis

    asked by Jane
  28. Math 2 questions

    I need help with 2 questions so that I could do my other ones myself so can someone please do these 2 questions so i get an example how to do them, thanks. 1. Lauren works for a bookstore. One of the stores suppliers has a promotion in which any in stock

    asked by Anonymous
  29. physics please help

    One lump of clay traveling at 14.98 m/s overtakes a second lump traveling at 4.98 m/s. After collision they are stuck together. To the nearest tenth of a m/s what is their common velocity?

    asked by blah physics
  30. physics

    A car traveling at 5.9 m/s accelerates at 2.12 m/s2 for 19.5 seconds. To the nearest meter how far does it travel.

    asked by giggles24
  31. physics

    Suppose a battery output a voltage of 9 volt. Calculate how many joules of energy are imparted to every individual electron moving through this battery?

    asked by Abhijit
  32. physics

    How far to the nearest tenth of a meter can a runner running at 5.33 m/s run in the time it takes a rock to fall from rest 67 meters?

    asked by giggles24
  33. chemistry

    sodium vapor lamps, used for public lighting, emit 489nm yellow light. what energy is emitted by: (a) an excited sodium atom when it generates a photon? (b) 1 mol of excited sodium atoms at this wavelength?

    asked by hardi
  34. English

    1. Attention Grabber for Odyssey: 2. State/Explain topic: 3. Thesis Statement: Please help me with this!

    asked by Kaitlyn
  35. hazard bctcs

    According to Chebychev's theorem, what percentage of a distribution will be within k = 3.7 standard deviations of the mean? (Give your answer correct to one decimal place.)

    asked by haley
  36. Physics !!!!! HELP PLEASE

    A hand gun fires a 12.0 g bullet at a speed of 400 m/s. What is its kinetic energy? At what speed must a motorcycle of mass 173 kg move to have the same kinetic energy as the bullet? Express your answer in km/h.

    asked by Joeline
  37. For Hannah

    Re http://www.jiskha.com/display.cgi?id=1369225544 Sorry to have caused confusion for you Hannah. In your original post, you had 3 different problems, the first two were "volume" questions. When I did the third one, which was simply finding an area, I

    asked by Reiny
  38. English

    1. The phrase that best describes the teenage couple in the beginning of the tale within the story "Everything Stuck to Him" is A. ambitious and optimistic about the future B. ambitious yet pessimistic about the future C. purposeless yet hopeful that

    asked by Eri
  39. physics

    Two cars lost in a blinding snow storm are traveling across a large field, each thinking they are on the road, as shown in the figure on the left. They collide. If the distance x is 169 meters and the red car is travelling at 15.8 mph, how fast to the

    asked by blah physics
  40. math

    The deepest part of the Pacific Ocean is Marianas Trenchwith a depth of 10,911 meters,The deepest part od the Alantic Ocean is the Puerto Rico Trench with a depth of 8,648 meters Whatn is the difference in elevation of the two trenches?

    asked by kelly
  41. physics

    A man pulls a 10 kg box across a smooth floor with a force of 53 newtons at an angle of 18 degrees and for a distance of 122 meters. How much work, to the nearest joule, does he do?If the floor is angled upward at 6.7 degrees and the man pulls the box up

    asked by blah physics
  42. computer

    How does a text box differ from a document within word 2007? A. a text box treats text as an image and has diffrent formatting B.a text box displays text that is read only once it is saved C. a text box has a file name ending with .tbx D. a text box is a

    asked by nana
  43. history

    Lord Selkirk implied that the French 1)were happy under English rule 2)never accepted English rule 3)should accept English rule 4)should change their language and institutions 5)were not oppressed by the English i put 4

    asked by nick
  44. maths

    Triangle ABC has area [ABC]=468. D,E and F are the midpoints of BC,CA and AB, respectively. Points P,Q and R are defined such that P is the incenter of AEF, Q is the incenter of BFD, and R is the incenter of CDE. What is [DREPFQ]? Details and assumptions

    asked by hemant
  45. Physics

    The average energy flux in the sunlight on the Earth is ⟨S⟩=1.4×103 W/m2. You might need to use some of the following constants: Distance from earth to the sun=AU=150×109m REarth=6.4×106m RSun=7.0×108m G=6.67×10−11m3/(kgs2)

    asked by Annoyingmous
  46. Chemistry

    If 10g of NO react with 20g of O2, what is the maximum amount of NO2 that can be produced? How do I know exactly which is limiting and which is excess, is there a calculation that shows this?

    asked by Timofey
  47. physics

    a diver makes a running horizontal jump off a cliff located 4m above the water level below. how fast must the driver be traveling at launch in order to clear 6m section of rocks at the water's edge?

    asked by kelsey
  48. English-Writing

    can u please help me revise my introduction and conclusion paragraph with better wordings. Introduction paragraph I have chosen my career field as an accountant but I want to start it with being a bank teller. I want to become a bank teller soon because

    asked by zeenat
  49. Math

    A locker combination has three nonzero digits, and digits cannot be repeated. The first two digits are 1 and 2. What is the probability that the third digit is 3? would this be 1/7 or 1/6? i'm unsure.

    asked by bubbie
  50. english

    8. Before writing a recommendation report to the CEO, Dee and Carlos distribute a survey to everyone in their company to determine which new benefits employees are most interested in. What part of the writing process does this activity represent? Writing

    asked by sue
  51. pyhsic question for count iblis

    PLEASE GIVE THE ANSWER,I ALREADY INPUT TO YOUR FORMULA AND IT IS FALSE... Is your answer 0.57? A 15 kg, 1m wide door which has frictionless hinges is closed but unlocked. A 400 g ball hits the exact middle of the door at a velocity of 35 m/s and bounces

    asked by pyhsiclover
  52. maths

    x and y are positive real numbers that satisfy logxy+logyx=174 and xy=2883√. If x+y=a+bc√, where a, b and c are positive integers and c is not divisible by the square of any prime, what is the value of a+b+c?

    asked by hemant
  53. Math

    Perform the given set operation. Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}. (Enter your answers as a comma-separated list. Enter EMPTY for the empty set.) {x | x is a multiple of 2} union {x is a multiple of 3}

    asked by Ronald
  54. hazard bctcs

    one aspect of the beauty of scenic landscape is its variability. The elevations (feet above sea level) of 12 randomly selected towns in the Finger Lakes Regions of Upstate New York are recorded here. 1117, 1360, 1009, 766, 1333, 1306, 577, 1144, 874, 658,

    asked by haley
  55. history

    Which of the following statements is true regarding the construction of the transcontinental railway?

    asked by Anonymous
  56. Physics

    A circuit consists of a resistor of R=7 Ω, a capacitor of C=7 μF, and an ideal self-inductor of L=0.04 H. All three are in series with a power supply that generates an EMF of 5sin(ωt) Volt. The internal resistance of both the power supply and the

    asked by Annoyingmous
  57. Business

    The Book Nook makes four times as much revenue on paperback books as on hardcover books. If last month’s sales totaled $124,300, how much of that money was made on paperbacks? (Points : 2)

    asked by Anonymous
  58. Math calculus

    The altitude of a triangle is increasing at a rate of 1000 centimeters/minute while the area of the triangle is increasing at a rate of 1500 square centimeters/minute. At what rate is the base of the triangle changing when the altitude is 7000 centimeters

    asked by Kitor
  59. Geometry

    Find the volume of a rectangular box. The faces have areas of 15, 25, and 60.

    asked by Sarah
  60. Maths Please Help

    Let A=a1,a2,…,ak and B=b1,b2,…,bj be sequences of positive integers such that a1≥a2≥⋯ak≥1, b1≥b2≥⋯bj≥1, ∑i=1k ai≤6, and ∑j i=1 bi≤6. For how many ordered pairs of sequences (A,B) satisfying the above conditions can we find a

    asked by Mathslover
  61. chemistry

    (a)how much energy in KJ/mol is released when an electron makes a transition from n=5 to n=2 in a hydrogen atom?

    asked by hardi
  62. MATH URGENT HELP

    In the expression -7x-3x^2+5 what is the coefficient of x? i don't understand what does coefficient is can you help?

    asked by Anonymous
  63. math

    A rental truck costs $50 plus $0.50 (67) per mile. (a) Write an equation that gives the cost C of driving the truck x miles. (b) Use the intersection-of-graphs method to determine the number of miles that the truck is driven if the rental cost is $80. (c)

    asked by Anonymous
  64. geometry

    find the coordinates of the points which are simultaneously 6 units from the points (6,6) and equidistant from the x and y axis. There are two ways to do this. I would like them both.

    asked by Danni
  65. Wavelength PLEASE HELP

    Calculate the wavelength of the signal sent by Q101 assuming that the actual frequency is 101.1 MHz. Determine how long it would take the signal to reach a car 33.4km away from the station. THANK YOU!

    asked by Mike Jones
  66. Physics

    An airplane is flying horizontally 100m above the ground at 50.0 m/s. Ignoring air resistance, how far before the target should an object be dropped?

    asked by Anonymous
  67. science

    a ball is projected at an angel of 45 degree to the horizontal.if the horizontal range is 40m,the maximum height attained by the ball is- a)5m b)8m c)10m d012m

    asked by Mainak
  68. geometry help

    Circle Γ with center O has diameter AB=192. C is a point outside of Γ, such that D is the foot of the perpendicular from C to AB and D lies on the line segment OB. From C, a tangent to Γ is drawn, touching Γ at E, where the foot of the perpendicular

    asked by Mathslover
  69. algebra

    Barney and George invested the same amount in two funds. Barney earned 4% and Fred earned 2%. If they earned $420 together. how much did they each invest?

    asked by Ressie
  70. American History

    Following the Spanish -American War. and espeacially in regard to American occupation of the philippines, most anti-imperialists argued that... A. The occupation would lead to unhealthy racial-mixing. B. Because all war was immoral, the fruits of war were

    asked by jake
  71. math

    If each cup of unpopped kernels makes 3 cups of popped corn, how many quarts of popped corn will a 16 ounce of kernels make? Please help me.

    asked by Anonymous
  72. english

    Please don't just give me the answer, because I won't learn that way. I am home schooled, and my parents are at work during the day. 9. Which sentence corrects the following sentence? The final decision must be made by Ellen and he. (1 point) A. The final

    asked by English/Grammar Help
  73. Math

    3) Find the area bounded by the curves f(x)= x^3 + x^2 and g(x)= 2x^2 + 2x. I get 4653pi/105 after help from Mr. Reiny, but this is wrong. Have I calculated incorrectly? Thank you

    asked by Hannah
  74. math

    A rental truck costs $50 plus $0.50 (67) per mile. (a) Write an equation that gives the cost C of driving the truck x miles. (b) Use the intersection-of-graphs method to determine the number of miles that the truck is driven if the rental cost is $80. (c)

    asked by Anonymous
  75. Stats

    A skeptical paranormal researcher claims that the proportion of Americans that have seen a UFO is less than 1 in every one thousand. State the null hypothesis and the alternative hypothesis for a test of significance.

    asked by Cecil
  76. math

    A 5-inch section of a hollow brick measures 12 inches tall and 8 inches wide on the outside. The brick is 1 inch thick. Find the volume of the brick, not the hollow interior.

    asked by Anonymous
  77. Halfway solved-calc

    So I'm trying to solve this problem but one thing I don't get is, how do I know which method to use just by looking at the graph (disk, washer, or shell)? Find the volume of the solid generated by revolving the region bounded by the graphs y=x^2- 4x+ 5 and

    asked by Hannah
  78. Physics

    A solenoid has N=1760.0 turns, length d=40 cm , and radius b=0.4 cm, (bL/R) after S1 is closed? . unanswered (d) How much energy (in J) is stored in the magnetic field of the coil a very long time (t>>L/R) after S1 is closed? unanswered For the next part,

    asked by Anonymous
  79. hazard bctcs

    one aspect of the beauty of scenic landscape is its variability. The elevations (feet above sea level) of 12 randomly selected towns in the Finger Lakes Regions of Upstate New York are recorded here. 1117, 1360, 1009, 766, 1333, 1306, 577, 1144, 874, 658,

    asked by haley
  80. Engineering Physics

    An ideal gas at 12.1 °C and a pressure of 2.38 x 105 Pa occupies a volume of 2.88 m3. (a) How many moles of gas are present? (b) If the volume is raised to 4.70 m3 and the temperature raised to 28.3 °C, what will be the pressure of the gas?

    asked by kurt
  81. Physics

    The magnetic vector of a plane electromagnetic wave is described as follows: B⃗ =Bmxˆsin[13 rad/m z− 3.90e9 rad/sec t] where Bm>0. This represents the full magnetic field, so that By=Bz=0. (a) What is the wavelength λ of the wave, in meters? (b) What

    asked by Annoyingmous
  82. Business Math

    One-ninth of Polymer Plastics’ sales are made in New England. If New England sales amount to $600,000, what are the total sales of the company? (Points : 2)

    asked by Anonymous
  83. PHYSICS SATELLITE PROBLEM

    A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!

    asked by Mike Jones
  84. life orientation

    Sources of environmental health

    asked by joseph
  85. Math

    3/4 - F = 1/3. What does F equal? ): Please help!

    asked by Taylor
  86. physics

    A 1.6 N loop of wire is hung in a magnetic field as shown. If the spring scale reads 0.60 N when a current of 1.0 A passes through the loop what is the magnitude and direction of the magnetic field?

    asked by vivi
  87. Statistics

    The mean and median sales prices of new homes sold in the U.S. in November 2010 were $213,000 and $268,000. Which of these numbers is the mean and which is the median? Explain how you know. I'm assuming the median is $213,000 and the mean is $268,000.

    asked by Anonymous
  88. Mayhs Please Help

    How many pairs of positive integers (a,b), where a≤b satisfy 1/a+1/b=1/50?

    asked by Mathslover
  89. Math ms. Sue please help

    Tim had $52 in his checking account. He wrote a check for $55 and then made a deposit of $10. How much was in his account?

    asked by Math wiz
  90. physics

    A speeder traveling at 28.8 m/s passes a motorcycle policeman at rest at the side of the road. The policeman accelerates at 2.03 m/s2. To the nearest tenth of a second how long does it take the policeman to catch the speeder?

    asked by giggles24
  91. maths

    Equilateral triangle ABC has a circumcircle Γ with center O and circumradius 10. Another circle Γ1 is drawn inside Γ such that it is tangential to radii OC and OB and circle Γ. The radius of Γ1 can be expressed in the form ab√−c, where a,b and c

    asked by hemant
  92. integral calculus

    integral of sin(x^2) dx i actually got the ans, but aftr differentiating the answer i am not getting back the question

    asked by help pls
  93. physics

    Vector A has magnitude 73 units and direction, counterclockwise from east, of 5.5 degrees. What is the value of its x-component to 1 decimal place?

    asked by blah
  94. algebra!!!! please help me!!!!

    A number is called algebraic if there is a polynomial with rational coefficients for which the number is a root. For example, √2 is algebraic because it is a root of the polynomial x^2−2. The number √(2+√3+√5)is also algebraic because it is a

    asked by bob
  95. math

    jimmy is playing a dart game at an arcade. he can earn 2,3,or 6 points with each dart. she scored 24 points. how many ways could he score 24 points given that each dart thrown landed on the dart board?

    asked by marissa
  96. Social Studies (Ms. Sue)

    What are two inventions that made modern city life possible? I know one of the inventions are skyscrapers but I am not certain of the answer to the other one.

    asked by Anonymous
  97. geometry

    find the coordinates of the points which are simultaneously 6 units from the points (6,6) and equidistant from the x and y axis. There are two ways to do this. I would like them both.

    asked by Danni
  98. Math

    A 5-inch section of a hollow brick measures 12 inches tall and 8 inches wide on the outside. The brick is 1 inch thick. Find the volume of the brick, not the hollow interior.

    asked by Anonymous
  99. english

    reading rate is: A. a measure of how much you understand what you read. B. the number of minutes it took to read a word C. a measure of how fast you read. D. a measure of how fast you read.

    asked by panther7772
  100. physics

    A plane travelling at 15.2 m/s is brought to rest in a distance of 132 meters. To the nearest hundredth of a m/s2 what is the magnitude of its acceleration?

    asked by blah physics
  101. english

    reading rate is: A. a measure of how much you understand what you read. B. the number of minutes it took to read a word C. a measure of how fast you read. D. a measure of how well you read.

    asked by panther7772
  102. Psychology

    When physical energy has resulted in a response in a sense organ, it is clear that: A. perception has taken place. B. the activation is the result of stimulus. C. the brain has interpreted the event. D. a single isolated sense is now perceiving the event.

    asked by susan
  103. English Please answer ASAP

    Lifeguard Assignment Chris doesn’t like children, but he works as lifeguard at the Brigeland Community swimming. He does not like children a lot, but he is working as a lifeguard at the Brigeland Community swimming pool. He spends most of his time at the

    asked by Sarah
  104. Accounting II

    calculate the total dividends and the per-share dividends declared on each class of stock for each of the six years.

    asked by Brenda
  105. English

    1. There are works of art on the buletinboard at the back. 2. There are five works of art on the bulletinboard in the back. 3. There are many tables and chairs in the English classroom. 4. There is a computer in English Classroom 1. 5. There are two

    asked by rfvv
  106. Pre-calculus

    As you drive down a mountain, you see a sign that says there is a 6 degree grade over the next 5 miles. What is the change in elevation over that 5 mile stretch?

    asked by Natalie
  107. Physics

    An electromagnet has a steel core (κM≈ 2500) with an approximately circular cross sectional area of 8.0 cm2. The radius of the magnet is 7.0 cm; there is a small air gap of only 3.2 mm (see sketch). The current through the magnet's N= 100-turn coil is

    asked by Anonymous
  108. Maths

    The roots of the polynomial f(x)=7x^2 +38x+c=0 are reciprocals of each other. What is the value of c ?

    asked by Tony
  109. Finance

    Ashok is to receive an amount of Rs. 15,00,000 from his relative after 3 years. He wants to buy a house for which he wants the money to be paid now. His relative had already invested the money at the rate of 9.25%. Calculate how much money Ashok will get

    asked by Anonymous
  110. history

    it can be inferred that William Lyon Mackenzie 1)was a famous writer 2)was a member of the Family Compact 3)oppose the oligarchies 4)supported the British 5)believed in peaceful assembly I put 1

    asked by nick
  111. Please answer this question as soon as posibble

    I did the paraphrases for the story is it the correct way. Lifeguard Assignment Chris doesn’t like children, but he works as lifeguard at the Brigeland Community swimming. He does not like children a lot, but he is working as a lifeguard at the Brigeland

    asked by sarah
  112. math

    sunshine honda sold 112 cars this month if that 40% greater than last month how many cars was sold last month

    asked by artyst
  113. Chemistry

    What is the intermolecular force for BaCO3?

    asked by Katie
  114. Physics

    An electromagnet has a steel core (κM≈ 2500) with an approximately circular cross sectional area of 7.0 cm2. The radius of the magnet is 12.0 cm; there is a small air gap of only 2.2 mm (see sketch). The current through the magnet's N= 120-turn coil is

    asked by Annoyingmous
  115. Math Geometry

    How do you put your knowledge of quadrilaterals to kites?

    asked by Sarah
  116. Psychology

    Kara heard the noise, but could not understand what was being said. Perhaps it was simply the humming of the machines that she heard? She was uncertain whether she should move toward or away from the sound. Kara is having difficulty with: A. sensation. B.

    asked by susan
  117. equations

    solve for x and y x+y=5 and x^x + y^y = 31 i have found x,y = 2,3 or 3,2 but i got the answer by merely substituting the values... is there any proper way to find x and y??

    asked by help pls
  118. world history

    What was the impact of New Imperialism in African and Asian colonies? Please give at least one example of each. How were these experiences different from traditional empires?

    asked by sandy59
  119. English

    1. There is a set of basketball uniform next to the basketball. 2. There is basketball uniform next to the basketball. 3. There are basketball uniforms next to the basketball. 4. There is a set of basketball uniform next to the basketball. (When there is a

    asked by rfvv
  120. physics

    A car accelerates at a constant rate from zero to 25.9 m/s in 7.6 seconds and then slows to 15.4 m/s in 5 seconds. What is its average acceleration to the nearest tenth of a m/s2 during the entire time?What was the acceleration during the first

    asked by giggles24
  121. math

    Your store’s average basket (transaction) size for the month of March was $11.50 and you believe the average basket size will remain the same for your store in April. One of your hourly employees had an average basket size of $9.00 for the month of March

    asked by Anonymous
  122. Math

    Can someone explain what to do for the following question. What percentage of a normal distribution is greater than the mean? Give your answer correct to the nearest percent. What formula is used? Because I have to find also 1 standard deviation of the

    asked by Sue
  123. algebra

    How long will the ball be in the air until it lands on the ground when h=-4.9t+28t+3.2 quadratics

    asked by Help
  124. To: Reiny- Math

    Thank you so much for helping me but for #2 c.) is it yes or a no, though i did the rest of my questions but im stuck on this one so can you please help and explain a lot cause i have a test on this soon and i want to understand it, thanks :) Serena can

    asked by Anonymous
  125. MATH

    THERE ARE 2 SPINNERS ONE IS LABLED A-D THE OTHER IS LABLED 1-8. WHAT IS THE PROBABILITH OF SPINNING EITHER AN A OR B AND EITHER A 1 OR 2. ANSWERS GIVEN ARE 0.0625,0.116,0.125,AND 0.18

    asked by JOSE
  126. math

    how much will i have to pay back on 3200 dollars intrest rate 9% for a yr an a half

    asked by henry
  127. Probability

    Bret and Shawn are playing a game where each turn the players roll a 20-sided die fair and then add the number they get to their score. The winner is the player with the highest score at the end of the game (there may be a tie). Before the last turn, Shawn

    asked by Shin
  128. Calculus

    A ladder of length 10 metres is being drawn up a wall. The top of the ladder is moving upwards at 1 metre per second. Find the speed with which the foot of the ladder is approaching the wall when the foot is 6 metres from the wall.

    asked by Matt
  129. Logarithm Please Help

    x and y are positive real numbers that satisfy log(base)x y + log(base)y x = 17/4 and xy=288√3. If x+y=a+b√c, where a, b and c are positive integers and c is not divisible by the square of any prime, what is the value of a+b+c?

    asked by Mathslover
  130. economics

    circular flow diagram, explain a way that your family interacts in the factor market and a way that it interacts in the products market.

    asked by denise
  131. algebra

    The ball is kicked straight up in the air from 4' off the ground Original velocity is 60' per second How many secs does it take to hit the ground. Do I use complete the square, square root property, quadratic formula, factoring? formula is h= 16tsquared +

    asked by barb
  132. Math ms. Sue please help

    Eve's account was overdrawn by $12. The bank charged her $10. Then she deposited $90. How much is in her account?

    asked by Math wiz
  133. Chemistry

    Do alloys have the same properties as their individual elements?

    asked by herp_derp
  134. Math 7th Grade

    A bag contains 5 red,2 blue,and 4 white marbles. What is the probabiltiy If Sam picked a red marble replaced it and picked a white marble?

    asked by Adnan
  135. Math (Algebra)

    If the ratio of the roots of the quadratic equation x^2−28x+A=0 is 2:5, what is the product of the roots of the quadratic equation x^2+Ax+2A+3=0?

    asked by Shin
  136. Chemistry

    What is the normality of a solution which contains 4.03-g of sodium carbonate in 300.-mL of solution?

    asked by Megan
  137. LIFE ORIENTATION

    Discuss 5 ways in which the Teenage Pregnancy problem impacts on the community.Provide relevant sources to support your claims.

    asked by MILDRET
  138. maths

    ABCD is a rectangle with AB=50 and BC=120. E is a point on CD (possibly extended) such that AE=EC. What is the length of DE?

    asked by hemant
  139. math

    Triangles ABC and DEF are similar. The similarity ratio of to is , AB = 40, BC = 25, and AC = 35. What is the perimeter of ?

    asked by angie
  140. math

    what percent of 30 is 40?

    asked by ben
  141. math

    how many diagnals does an octagon have?

    asked by Geli
  142. health

    At what age does exercise begin to result in strength in boys and girls

    asked by Anonymous
  143. Frenchhhhhhhhhh

    Please help! I have to replace 1- avez-vous eu DES CADEAUX pour votre anniversaire? 2- tu as des COURS DE FRANÇAIS tous les jours? 3-elles ont beaucoup D'AMIS au collége??

    asked by Kate
  144. Chemistry

    What is the mass of a sample of acetylene gas (C2H2)that contains 4.44 x 1034 atoms of carbon? Also, Im not sure how to convert from moles of C to moles of C2H2.

    asked by Timofey
  145. Psychology

    Young adults in their early twenties spend: A. ten percent of their total sleep in stage 1. B. 20 percent of their total sleep in stage 2. C. half of their total sleep in stage 2. D. half of their total sleep in stage 3. Answer C

    asked by susan
  146. precalc

    partial decomposition 12/x(x-2)(x+3)

    asked by jinie
  147. algebra

    1. For the given function f and g find the folowing and state the domain of each result f(x)=2x+1;g(x)=7x-1 a) (f-g)(x)=_____ (f/g)(X)=_____

    asked by Sharday
  148. Hisory

    Why is the Benghazi Attack such a controversy? I need to answer this in a few sentences which I am having a hard time doing. I wrote my paper but I can't seem to summarize it.

    asked by Mark
  149. English

    1. There are many fluorescent lights on the ceiling. 2. There are many fluorescent lamps on the ceiling. 3. There are many fluorescent light bulbs on the ceiling. (Which expressions are right? Which one is commonly used? Thank you.)

    asked by rfvv
  150. business english

    Good writing costs companies money and these costs increase significantly if the communication is ineffective. Which of the following pairs would NOT be two additional costs to the company if written communication is poor? A. Paper and wasted time B.

    asked by Anonymous
  151. science

    CH4 + O2CO2 + 2H2O

    asked by Anonymous
  152. History

    Thanks Ms. Sue, very helpful

    asked by Mark
  153. economics

    The Milwaukee Brewers are playing their archrival Chicago Cubs. Bleacher tickets for the game were sold out and many fans would have attend if tickets were availiable. 1. Draw the demand and supply lines for bleacher tickets for this game. Label the

    asked by Kim
  154. sonogram physics

    How much time is required to image a structure at 5cm.?

    asked by sue
  155. social studies

    Payment to workers, his dependents,and/ or survivorsin the event of retirement, disabilityor death are generally covered by the system of insurance known as ?

    asked by mark
  156. physics

    You are travelling in your 2000 kg car at 12.5 m/s and wish to accelerate to 17.3 m/s in 4.28 seconds, how much work, to the nearest joule, is required? -------------------------------------------------------------------------------- 4 In the previous

    asked by blah physics
  157. Computers

    Which of the following operating system types is used in medical equipment or a cash register? A. Multi-user/multi-tasking B. Real-time C. Single-user/multi-tasking D. Single-user/single-tasking

    asked by Carolyn
  158. To Math Helpers please:Math 2 questions

    I'll retype it, Ive been waiting forever and i just need someone to do these 2 questions so that i can continue doing my other ones so can someone do them: I need help with 2 questions so that I could do my other ones myself so can someone please do these

    asked by Anonymous
  159. English

    Homework Help: English Posted by rfvv on Wednesday, May 22, 2013 at 8:22pm. 1. There are works of art on the buletinboard at the back. 2. There are five works of art on the bulletinboard in the back. 3. There are many tables and chairs in the English

    asked by rfvv
  160. social studies

    are there people currently who consider rosa parks a bad woman?

    asked by Anonymous
  161. L.O

    Community organizations in S.A that are involved in giving redress to disasters

    asked by bar man
  162. english

    we cannot have a peaceful and just society so long as any one group is required to be (responsive, submissive) to another. submissive

    asked by cici
  163. PLEASE HELP FINAL PROBLEM ORBITAL

    A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!

    asked by Mike Jones
  164. PHYSICS FINAL (orbital)

    A 3300kg satellite is traveling 3550 km above the Earth's surface. Calculate the velocity and period of the satellite. THANK YOU VERY MUCH!!!!

    asked by Mike Jones
  165. Chemistry

    What happens if you add more solute to a saturated solution?

    asked by Timofey
  166. Science

    How often must a tractor be serviced?

    asked by Juanita
  167. 6th grade science

    The erosive energy of rivers alters landscapes over periods of millions of years. Which of the following increases a river's rate of erosion? A)low gradient B)high discharge C)small load D)decreased speed

    asked by sheri
  168. history

    which popular company recently became public and is traded on the NASDAQ?

    asked by estrella
  169. Math

    Sam is making 3 picture frames with dimensions seven and seven-eights and five and three quarters. What length of wood does he need for all 3 picture frames? Please answer as soon as possible; need it for tomorrow. Thanks

    asked by Betty
  170. englis

    having problems with a "gerund" worksheet

    asked by lulu
  171. Calculus

    3) Find the area bounded by the curves f(x)= x^3 + x^2 and g(x)= 2x^2 + 2x. I get 4653pi/105 after help from Mr. Reiny, but this is wrong. Have I calculated incorrectly? Thank you

    asked by Hannah
  172. Math Models

    The scores on a standardized test are normally distributed with the mean of 750 and standard deviation 70. Find the probability that a score is more than 890. This is from my Math Models class. I am not taking Statistics. Please someone show me how to do

    asked by Denise
  173. English

    1. A book is/lays open on the blanket on the bed. 2. There is an open book on the blanket on the bed. 3. There are some books on the shelf on the wall. (Are they grammatical? Would you check them? Thank you.)

    asked by rfvv
  174. Maths Please Help

    Alex and Bella play the following game. They first choose a positive integer N, and take turns writing numbers on a blackboard. Alex starts first, and writes the number 1. After that, if the number k is on the board, the next player may write down either

    asked by Mathslover
  175. Math (Algebra)

    For real numbers a and b, if f(x)=x^2−ax+b satisfies f(5+7i)=2a, what is the product of the two roots of the equation f(x)=0?

    asked by Shin
  176. BIOLOGY!!!!!!

    What is the reletive amounts of mRNA that will e transcribed if there is no promoter and enhancer?

    asked by JULIA
  177. math URGENT thx

    what is the rule? x 5 7 9 11 y 1 1.6 1.8 2.2

    asked by natalie
  178. math

    Logarithm 3^3x+1=3^5x-2 3^3x+1-3^5x-2=0 Log(3^3x+1-3^5x-2)=log0 Please explain to me why is the last step is wrong

    asked by katy
  179. maths

    a, b, c, A and C are real numbers that satisfy the equation (ax2+bx+c)2=Ax4+16x3+28x2+24x+C How many possible ordered triples of (a,b,c) are there?

    asked by hemant
  180. maths

    Let ABCD be a rectangle such that AB=5 and BC=12. There exist two distinct points X1 and X2 on BC such that ∠AX1D=∠AX2D=90∘. Suppose that d is the distance from X1 to X2. What is d2?

    asked by hemant
  181. maths

    ABCD is a parallelogram. E is a point on DC extended, such that D and E are on opposite sides of BC. Let AE intersect BC and BD at F and G, respectively. If AG=180 and FG=108, what is EF?

    asked by hemant
  182. maths

    Let ABCD be a rectangle such that AB=5 and BC=12. There exist two distinct points X1 and X2 on BC such that ∠AX1D=∠AX2D=90∘. Suppose that d is the distance from X1 to X2. What is d2?

    asked by hemant
  183. maths

    simon buys box of 10 balloons for 2 dollars each . he then sells each balloon for 22 cent. what percentage does he make?

    asked by breana
  184. math

    a jet travels at 435.6 miles per hour. how far will it travel in 6.75 hours?

    asked by alyssa
  185. math

    24 ÷ 6 ( 2 + 2 )= ?

    asked by anonymous
  186. Chemistry

    The volume of a gas sample is 200 L at 740 torr. What is its volume at 760 torr?

    asked by Terry
  187. Pre-calc

    The plane y + 4z = 15 intersect which axes?

    asked by Chris
  188. math master help plzzzzzzzzzzzzzz

    what comes next in the sequence 6,12,20,32,52,88,156

    asked by jamesbond
  189. economics

    am i right? don't want to hand in wrong homework again, my mom will kill me A research firm calculated that students who attend University spend about $2,760 each in the local economy for a total of $50.45 million. In total, the impact of their spending on

    asked by jill
  190. Chemistry

    The volume of a gas sample is 200 L at 740 torr. What is its volume at 760 torr?

    asked by Terry
  191. Psychology

    Uncle Billy fell asleep in front of the television again. Five minutes later a noise from the kitchen awakened him. He sat up looking a bit dazed and explained, "I was having something like a dream. I saw my first bicycle, Old Blue, just as bright and

    asked by susan
  192. algebra

    what is the slope of the line perpendicular to y=2/5x+7

    asked by elaina
  193. English

    Q: What is the box where dustpans and brooms are kept in a classroom called in English?

    asked by rfvv
  194. algebra

    Given f(x)=x^2+4 and g(x)=3x+1 simplify g^-1(x)(inverse) please show work and explain

    asked by mia
  195. algebra

    1.Find the domain of the function. Make sure answer is in interval notation. g(x)=7x/x^2-4 2.Find the domain of the function. Make sure answer is in interval notation. f(x)=5x square root of x-2

    asked by Sharday