1. Physics- check answer please

    1. A 15 kg boy falls out of his bed at a height of 0.50 m. What is the amount of gravitational potential energy lost by the boy? my answer: 74 J 2. What is the speed of a 0.25 kg ball if its kinetic energy is 15 J? my answer: 11 m/s 3. if the speed of an

    asked by Liz on July 4, 2014
  2. Chemistry

    I think I have the answer to this question but need some help! Display the final answer in correct scientific notation and show correct number of significant figures in the final answer: 6.0223010000 x 10-24 x 2.222090001 x 10-30

    asked by Susan on February 22, 2012
  3. math

    There are 45 questions in a Mathematics quizbee. For every correct answer, 5 marks are awarded and 3 marks for every wrong answer. If sofia scored 185 points, how many questions did she answer wrongly.

    asked by thania on April 23, 2015
  4. Math

    Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my

    asked by Brady on April 8, 2014
  5. Vectors

    In triangle OAB, OA = 3i + 4k and OB = i + 2j - 2k. Find OP, where P is the point where the bisector of Angle AOB intersects AB. Answer is 7i/4 + 5j/4 + k/4 Don't use the matrix method as I haven't learnt it yet and please show working. Thx a lot.

    asked by C on January 11, 2017
  6. Physics

    An object is placed 10 cm in front of a convex mirror of focal length 4 cm. Find the image location by drawing a ray tracing diagram to scale. Verify your answer using the lens equation.

    asked by Mike on November 28, 2012
  7. Trigonometry

    Round answer to two significant digits A telephone pole 40 feet high is situated on an 13° (H) slope from the horizontal. The measure of angle CAB is 21°. Find the length of the guy wire AC.

    asked by Karen on November 8, 2014
  8. Math

    $2500 is invested in an account that pays 12% interest, compounded continuously. Find the time required for the amount to triple and round the final answer to the nearest tenth of a year.

    asked by Tamie on November 12, 2014
  9. math

    Find the absolute extrema of the function on the closed interval. Use a graphing utility to verify your results. (Round your answers to two decimal places. If an answer does not exist, enter DNE.) g(x) = (x^2 − 4)^2/3, [−5, 3]

    asked by akash on March 31, 2013
  10. Physics

    A 0.9 kg object that stretches a spring 2.5 cm from its natural length when hanging at rest oscillates with an amplitude of 8.1 cm. Find the total energy of the system. The acceleration due to gravity is 9.81 m/s2. Answer in units of J

    asked by Maxx on December 5, 2011
  11. American Government

    I've read my book and still can't find the answer to this question. I need an explanation so I can study for my midterm coming up. Help please? Describe two ways the federal bureaucracy helps to shape laws passed by Congress.

    asked by Karen on December 25, 2009
  12. Algebra

    A manufacturer of tin cans wishes to construct a right circular cylindrical can of height 20 centimeters and capacity 2600 cm^3 (see the figure). Find the inner radius r of the can. (Round your answer to one decimal place.) r = cm

    asked by Emsley on September 14, 2014
  13. Algebra

    A manufacturer of tin cans wishes to construct a right circular cylindrical can of height 20 centimeters and capacity 2600 cm^3 (see the figure). Find the inner radius r of the can. (Round your answer to one decimal place.) r = cm

    asked by Ems on September 15, 2014
  14. Math

    An unknown distribution has a mean of 80 and a standard deviation of 12. A sample size of 95 is drawn randomly from the population. Find the probability that the sum of the 95 values is less than 7,300. (Round your answer to four decimal places.)

    asked by alex on April 17, 2018
  15. phyics

    A car takes 11 s to go from v=0m/s to v = 22 m/s at constant acceleration. If you wish to find the distance traveled using the equation d=1/2at2, what value should you use for a? Please help on this i don't know what i should put i think m/s squared but i

    asked by rachel on September 19, 2015
  16. Geography

    47. Following the breakup of the Soviet Union, what are some of the major problems faced by many of the new countries. Can someone please give me a specific page where I can find information for this question? In my book it's spread around the whole

    asked by y912f on April 26, 2010
  17. physics

    A robot probe drops a camera off the rim of a 455 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2.Find the velocity with which it hits the ground. Answer in units of m/s

    asked by Anne on November 11, 2012
  18. English

    IN O'connors A good man is hard to find, for the question which person seems excited about having an accident? is the answer Bailey. Thanks These sites may be of help to you. http://www.exampleessays.com/essay_search/A_Good_Man_is_Hard_to_Find.html

    asked by casey on April 15, 2007
  19. history

    please give me links from which i can find the answer to this question the North Atlantic Treaty Organization (NATO) was based on the principle of a. free trade b. collective security c. appeasement d. isolationism thanks:D

    asked by history on March 31, 2009
  20. Math I have tried it and tried it

    I have tried several times to find the vertex, line of symmetry, max/min value of the quadratic function. f(x)=-2x+2x+8 I know I have to do completing the square to answer this but everytime i try to follow the steps I stumble hard! a(x-h)^2+k x= -b/2a

    asked by Sabrina on September 24, 2010
  21. physics

    A tandem bicycle team must overcome a force of 165 N to maintain a speed of 9.00m/s. Find the power required per rider, assuming that each contributes equally. Answer in watts.

    asked by steve on October 21, 2009
  22. Education

    __________can be defined as a philosophy, an approach, and actions that embody treating all people with fairness, respect, dignity, and generosity. I can't find the answer to this. I'm thinking it is some form of Multicutural Education

    asked by Will on September 30, 2008
  23. trig

    If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

    asked by A on April 3, 2011
  24. trig

    If a triangle has an area of 50 square units and has angles that measure 15, 65, and 100 degress, find the length of the shortest side to the nearest tenth. Do not round till the final answer.

    asked by A on April 3, 2011
  25. physics

    A robot probe drops a camera off the rim of a 323 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2 . Find the velocity with which it hits the ground. Answer in units of m/s.

    asked by Anonymous on September 25, 2015
  26. physics

    A robot probe drops a camera off the rim of a 437 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s 2 . Find the velocity with which it hits the ground. Answer in units of m/s

    asked by Anonymous on September 26, 2012
  27. physics

    A robot probe drops a camera off the rim of a 387 m high cliff on Mars, where the free-fall acceleration is 3.7 m/s2 . Find the velocity with which it hits the ground. Answer in units of m/s

    asked by Anonymous on September 26, 2014
  28. us history

    Evaluate the extent to which the Articles of Confederation were effetive in solving the problems that confronted the new nation. Does anywone know where I can find the answer to this? I have to type a whole page on it so I need a lot of information...

    asked by Andrea on September 26, 2012
  29. Trigonometry

    Round answer to two significant digits. A telephone pole 40 feet high is situated on an 13° (H) slope from the horizontal. The measure of angle CAB is 21°. Find the length of the guy wire AC.

    asked by Karen on October 22, 2014
  30. lambton

    A rotating flywheel of diameter 48.0 cm uniformly accelerates from rest to 240 rad/s in 15.0 s. Find the linear velocity of a point on the rim of the wheel after 15.0 s. Round answer to one decimal place.

    asked by joy on April 22, 2016
  31. math

    Use the graph below to answer the following question. 1.   Find the slope.  (1 point) 2 – –2 Use the graph below to answer the following question. 2.   Find the slope of the line. Describe how one variable changes in relation to the other.

    asked by Anonymous on May 7, 2014
  32. math

    Many scientists believe that the increase of carbon dioxide (CO2) in the atmosphere is a major contributor to global warming. The Environmental Protection Agency estimates that one gallon of gasoline produces on average about 19 pounds of CO2 when it is

    asked by Marie P. on August 2, 2014
  33. physics

    A superhero flies 310 m from the top of a tall building at an angle of 30 ◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m Your

    asked by Anonymous on September 30, 2012
  34. math

    Double check please Write each of the following as a common fraction or mixed number. Write your answer in lowest term 28. 15.35 Answer: 1535 / 100 = 307/20 = 15 35/100 is 15 7/20 Complete each of the following statement, using the symbol < or > 5/16

    asked by DJ on February 20, 2008
  35. physics

    A superhero flies 285 m from the top of a tall building at an angle of 15 ◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m Your

    asked by emily on September 30, 2013
  36. Physics

    A superhero flies 235 m from the top of a tall building at an angle of 25  below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m Your

    asked by Crystal on September 30, 2012
  37. physics

    A superhero flies 310 m from the top of a tall building at an angle of 15 ◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m Your

    asked by Brandom on September 24, 2013
  38. Physics

    A superhero flies 185 m from the top of a tall building at an angle of 15◦ below the horizontal. What is the horizontal component of the superhero’s displacement? Draw the vectors to scale on a graph to determine the answer. Answer in units of m. Your

    asked by Sophia on October 16, 2016
  39. algebra

    Okay, how do you factor a polynomial when there is a number in front of the highest x term. For example: how would you factor 2x^2-11x+15 i know the answer is (2x-5)(x-3), right? So you put the 2x on one side and then you put an x on the other. And then

    asked by Fidelia on May 15, 2007
  40. math,help

    on one of last week homeworks i got this one wrong can someone explain to me what is the correct format. The demand supply equations for a certain item are given by: D= -5p+40 S=-p^2+30p-8 The correct answer was: $1.43 how do you get to this answer because

    asked by jasmine20 on April 19, 2007
  41. Physics

    A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to

    asked by annonomus on October 11, 2010
  42. Physics

    A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to

    asked by christine on October 11, 2010
  43. Physics

    A freestyle skier hits the take off ramp with an initial velocity of 17.5 m/s with a purely vertical take off (90 degrees). What is the peak height that the skier will reach? Can you fully explain to me how to get this answer? I did the formula

    asked by Caitlyn on February 27, 2013
  44. Physics

    A person walks 2.8597x10^1 m East, then turns around and walks 8.7898x10^1 m West. The total time to walk this distance was 4.4004x10^2 s. What is the velocity of the walker, expressed to 3 significant figures? Note: Your answer is assumed to be reduced to

    asked by christine on October 11, 2010
  45. Geometry

    I have several questions, because my geometry final is tomorrow. I've completed most of the review, but can't seem to figure out these questions. It would be great if someone could tell me how to solve each equation. 1. Find the radius of the circle with

    asked by Sammie on June 17, 2008
  46. Geometry

    What is the radius if the area of the circle is: 4x^2(PI) My answer 4x^2(pi)=(pi)(r)(2), 16x(pi)=(pi)(r)(2), 16x/pi=5x. 5(PI) My answer 5(pi)=(pi)(r)(2), sqare root of 5 is 2.23, which rounds to 3, 3(pi)=square root of 9. What is the area of the sector if

    asked by Marisa on June 15, 2010
  47. Math (Calculus II)

    Rate of change proportional to size: P(t)= P(i)e^kt, where P is population, t is time, k is a constant and P(i) is the initial p or "p naught"; sorry, I don't know the typed notation for subscript. By the way, p(i) is given as 100. The problems are a.)

    asked by John on September 4, 2010
  48. Math (Calculus II)

    Rate of change proportional to size: P(t)= P(i)e^kt, where P is population, t is time, k is a constant and P(i) is the initial p or "p naught"; sorry, I don't know the typed notation for subscript. By the way, p(i) is given as 100. The problems are a.)

    asked by John on September 5, 2010
  49. physics

    A point charge of 2.4 μC is located at the center of a spherical shell of radius 17 cm, which has a charge −2.4 μC uniformly distributed on its surface. Given: ke = 8.98755 × 109 Nm2/C2 . a)Find the electric field for all points outside the spherical

    asked by alex on September 19, 2011
  50. Statistics and Probability

    Let N be a random variable with mean E[N]=m, and Var(N)=v; let A1, A2,… be a sequence of i.i.d random variables, all independent of N, with mean 1 and variance 1; let B1,B2,… be another sequence of i.i.d. random variables, all independent of N and of

    asked by Anonymous on November 5, 2018
  51. Spanish

    I was hoping that someone could prof read my essay and check for proper uses of words, grammar, spelling, and conjugations of words. the first three paragraphs are what I have to write in spanish. the three paragraphs below that is the english version of

    asked by Caleb on July 6, 2015
  52. Check my answered questions.

    For the combining gas law P1V1/T1=P2V2/T2 home work assignment I did three answers on my own and would like you to check them if they are right. If for some reason the answers that I provided don't seem correct please provide me with the right answers.

    asked by Lizy on May 2, 2008
  53. maths

    A satellite travels around the earth in a circulsr orbit 700 kilometres above the earth's surface. Find the radius of the satellite's orbit if the radius of the earth is 6400 kilometres. Also find the distance traveled by the satellite in one orbit of da

    asked by Bendang on March 8, 2016
  54. Math

    In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad. 1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small angle, show that x≈ a + bϴ^2, where a and b are constants to be determined. 2. For this part, ϴ is not assumed to be a

    asked by John on November 30, 2016
  55. Math

    In the triangle ABC, AC=2cm, AB=x cm and angle ABC=π/2 rad. 1. Given that angle BAC=ϴ rad, and that ϴ is a sufficiently small angle, show that x≈ a + bϴ^2, where a and b are constants to be determined. 2. For this part, ϴ is not assumed to be a

    asked by John on December 1, 2016
  56. Math

    Find the point of intersection between y=2-(1/2)x and y=1+ax. (a=alpha sign). You answer will be a point in the xy plane whose coordinates involve the unknown a . I got that which is x=2/(2a+1), y=(1+2a)/(2a+1)

    asked by SC on October 9, 2009
  57. Algebra

    Find the area of the irregular shape. Round to the nearest tenth. There's a semi-circle on top of a rectangle with 8 as the base and 5 as the height. A. 90.2 sq cm B. 241 sq cm C. 65.1 sq cm D. 72.3 sq cm Find the area of blue portion of the irregular

    asked by Baby_Banana on January 8, 2018
  58. math

    can someone correct these for me. 8x –4y = 16 y = 2x –4 My answer: This problem does not have a unique solution. This problem therefore is consistent and dependent These equations are the same. If you solve the first one for y, you will see that the

    asked by jasmine20 on December 23, 2006
  59. physics electromagnetism

    Two long parallel vertical wires 0.3m apart are. ' placed east-west of one another. The current in the westerly wire is 30A and on the other 20A. The horizontal component of the earths magnetic flux density is 2*10^-5. Find the force per unit length on

    asked by pascal on March 15, 2015
  60. Math

    3) Find the capacity in gallons of a drum that is cone-shaped if the radius is 9 feet, and the slant height is 41 feet. (first find the volume) Volume in cubic feet = cubic feet Capacity in gallons = gallons (Round answer to the nearest gallon) (Use 1 cu

    asked by Mike on May 15, 2008
  61. Algerbra

    These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of

    asked by Morgan on October 23, 2013
  62. math

    These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 .... 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of

    asked by somebody help i am new on October 14, 2014
  63. math

    These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of

    asked by somebody help i am new on October 14, 2014
  64. Math

    These problems I really don't understand and really need serious help :) 1.What the product of (5.1 x 10^3)x (3.2 x 10^3)?(Please express your answer in scientific notation) 16.32 x 10^6 1.632 x 10^7 16.32 x 10^9 1.632 x 10^10 2.What is the product of

    asked by Morgan on October 22, 2013
  65. Another Math Statistical Question

    Assume Coca Bottling is a company producing power drinks. You visited the company and did a sampling of 15 bottles to figure out the average volume of the bottle. You recorded the following data: 17, 16, 17.5, 16.7, 17.3, 15, 17.2, 17, 17.2, 16.8, 17.3,

    asked by Johnny on May 12, 2008
  66. French

    Could you check these thanks Directions: Complete each sentence with the correct form of the verb in parentheses. 1. Le matin, tout le monde veut la salle de bains. Moi, je -------- à sept heures. (se réveiller) Answer: me réveille 2. Mon frère

    asked by Maria on November 12, 2009
  67. Managerial Accounting

    Greetings, I just started my accounting class and I do not have any accounting experience of knowledge (my first acct class). Could you please help me out. I just need the traditional and ABC direct, indirect, and unallocated cost answer for the two

    asked by Angela on January 28, 2012
  68. Physics 1 Collision Math

    Mass A, 2.0kg , is moving with an initial velocity of 7 m/s in the +x-direction, and it collides with mass B,4.0kg , initially moving in the +x-direction. After the collision, the two objects stick together and move as one. What is the change in kinetic

    asked by Anonymous on August 31, 2017
  69. Algebra

    Can someone tell me if I am right? I need to find the equation of a parabola. I am not sure if this is the correct way or if I have the correct answer. Vertex at origin, focus is at (0,3) Equation of parabola vertex (0,0) focus (0,3) focus (h,k+p) (0,0+3)

    asked by Tim on April 30, 2008
  70. algebra problem

    I need to find the equation of a parabola. I am not sure if this is the correct way or if I have the correct answer. Vertex at origin, focus is at (0,3) Equation of parabola vertex (0,0) focus (0,3) focus (h,k+p) (0,0+3) y=0-3 directrix y=-3 a=(1/4)(p)

    asked by Tim on April 30, 2008
  71. Math help polynomial

    multiply the following polynomial -3x(y^2+2y^2) answer choices 3xy^2-6xy^2' -3xy^2-gxy^2 -3xy^2+5y^2 -9xy^2 The last one was the answer. Can you tell me how the answer was solved? Thanks!

    asked by Alex on February 15, 2014
  72. Grammar

    Choose the best answer. 1. Histologic sections of the appendix (show, shows, showing) acute and chronic periappendicitis charaterized by a mixed acute and chronic inflammatory infiltrate on the serosal surface associated with hemorrhage, vascular

    asked by Leslie on May 12, 2011
  73. algebra

    A rental company purchases a truck for $14,500. The truck requires an average cost of $6.75 per day in maintenance. (a) Find a linear function that expresses the total cost C of owning the truck after t days. C(t) = 1 (b) The truck rents for $55.00 a day.

    asked by Jesse on October 25, 2014
  74. Physics

    I need help on the following questions, I am stuck and not sure on what to do, can someone work it out and or tell me steps to obtain the answer. Thank you 1) A point charge of -0.90 microC is fixed to one corner of a square. An identical charge is fixed

    asked by Kevin on September 13, 2006
  75. Emergent computer tech

    1. Text that is located between and appears in the browser’s ______________. answer: Tab title 2. There are _______ levels of headings in HTML. answer 6 3. If the tags are around a word, then it will be ________. answer Emphasized 4. A link’s

    asked by Kayla on August 28, 2017
  76. Chemistry

    My teacher gave us the answer to a chemistry problem and i cannot figure out how she got the answer. Can you help me work out this problem so i can better understand it. A gas under an initial pressure of 0.60atm is compressed at a constant temperature

    asked by Steven on March 19, 2012
  77. Geometry

    What is the area of a regular pentagon with an apothem 14 inches long and a side 20 inches long? Round the answer to the nearest inch. Answer choices: 1400 in.^2 700 in.^2 175 in.^2 140 in.^2 Give work, not answer, please.

    asked by Jake on May 14, 2016
  78. Math

    I'm doing some practice questions for my Complex Numbers unit and I'm confused on how to get the answer for this problem: (Radical -50x^2y^2) My answer guide says that the answer is 5i |xy| (Radical 2) Could someone please show me how to do the problem?

    asked by Maia on March 15, 2019
  79. math

    I need a formula. At a math contest,12 problems were given. Five points were awarded for each correct answer, and two points were deducted for each incorrect answer. Matt's score was 39. How many correct answer did he have

    asked by mike on March 31, 2015
  80. maths

    I have y=5sin(4x-pie/2). I need too find phase shift. I know c/b is shift. This is pie2/4=.392, but does not equal my answer and I don't know direction it should go. Can anyone help? What do you mean by c/b? What do you mean by pie2/4=.392? What phase

    asked by matt on December 9, 2006
  81. math

    A rhombus has sides 10 cm long and an angle of 60 degrees. Find the distance between a pair of opposite sides. can u plz post the answer down with explanation. thanx, :)

    asked by allie on April 20, 2017
  82. Algebra

    How do you factor ax^2+bx+c? I'm so confused. I remember my teacher saying to use the discriminant b^2-4ac but when I do find the answer what do I next? Please help! For ex. Factor the trinomial if possible. If it cannot be factored, write not factorable.

    asked by Emma on April 28, 2013
  83. arabic

    can someone please tell me what haqibah means in english? it is an arabic word. i think it means suitcase but i'm not sure i've searched it on google but i didn't find my answer i have to teach it to a student, please help me as soon as possible thanks

    asked by y912f on August 20, 2009
  84. maths

    maria gave two fifths of her stickers to susan but still had 18 left. how many did she give susan. thats my homework question and i don't understand how i find out the answer

    asked by charlotte on November 6, 2014
  85. math

    Find an equation of the line through the point that cuts off the least area from the first quadrant. Please enter your answer in the slope-intercept form. What were the coordinates of the point? (4,16)... sorry about that.. thanks!

    asked by Tina on March 30, 2007
  86. Math.

    Find the percent of discount on a pair of jeans if the original price was $30 and it is now selling for $22.50. Round your answer to the nearest tenth of a percent. I would like an explination to this please!

    asked by Anni on February 28, 2016
  87. Ms sue plz help

    Can you give me links to help me find out the answer? compare and contrast the views of the federalist party and the democratic republican party on at least three different historical issues

    asked by Chefu on November 11, 2016
  88. college algebra

    find the zero's for the following polynomial and give the multiplicity for each zero. For each zero, state whether the graph crosses the x-axis or touches the x-axis and turns around. f(x)=5(x-2)(x+4)^3 I am having trouble with this. Can you please show me

    asked by ladybug on November 11, 2012
  89. business

    How long is a license to practice medicine in your own organization good for? I live in florida and can not find this answer so am sure i am not looking in the right place. can you help?Podiatric medicine is what i am working on.

    asked by lois on August 9, 2010
  90. Electronics

    I CANNOT find an answer to this anywhere in the book or online PLEASE HELP. A circuit has 40 V and a parallel resistor with 3 100 ohm resistors in place. How much power is dissipated from the circuit?

    asked by Cassie on November 15, 2012
  91. Math

    Hello, I can't find a pattern to answer this question, can you help? The beginning of the fibonacci number sequence is listed below: 1,1,2,3,5,8,13,...... What is the smallest term in the sequence which has a value greater than 100?

    asked by JOE on February 6, 2010
  92. calculus 1

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = 4x3 + x2 + 4x

    asked by John on October 22, 2017
  93. chemistry

    Find the molar heat of vaporization for a substance, if 3.28mol of the substance absorbs 24.8 kJ of energy when it changes from a liquid to a gas. Answer in units of kJ/mol

    asked by nelson on March 1, 2012
  94. Math

    Hello, could someone please go over the steps for this question? Thank you! 1. Find the circumference. Leave your answer in terms of pi. The middle line going through the circle is 8.4 (I'm so sorry I don't know the name of the line, brain fart). A) 12.6

    asked by Tim on April 28, 2016
  95. maths

    Find the normal to the curve x=tt+1x=tt+1 and y=tt−1y=tt−1 at the point T where t = 2. I tried converting this into one equation (y=x(t+1)t−1y=x(t+1)t−1) but don't see how to get the answer which says: dydx=−(t+1)2(t−1)2dydx=−(t+1)2(t−1)2

    asked by MeGaTrOn on May 16, 2017
  96. math

    Find the monthly payment for the loan. ( round your answer to the nearest cent.) Finance $950,000 for a warehouse with a 7.50% 30 year loan

    asked by shawanda on August 11, 2014
  97. Physics

    A woman using a compass and a map walks 132 degrees east of north for 6 km. Find the components of the woman's displacement. A. Ax = 4.46 km, Ay = 4.01 km B. Ax = 0.74 km, Ay = -0.67 C. Ax = 4.46 km, Ay = -4.01 km D. Ax = 0.74 km, Ay = 0.67 km (I'm new to

    asked by Sasha B. on September 30, 2018
  98. algebra II

    I have been working on this problem for a while and for some reason I don't come up with the answer. a^2+b^2=c^2 I came up with 2square root 5 please tell me if this is correct. In a right triangle, Find the length of the side not given b=1, c=square root

    asked by betty on April 15, 2010
  99. pre calc

    i have to use the inverse of tangent to find a missing angle in a triangle. the know sides are x+1 and 10. since i am using tangent, it should be arctan theta=x+1/10 my question is how do i solve this? i don't want the answer just HOW.

    asked by crim on February 25, 2011
  100. Math

    Kimberly is 3 times as old as her sister, Halley .Find the ratio of Kimberley"s age to Hallet"s age. Give your answer in fraction form.

    asked by Helen on February 20, 2014