1. Physics

    A stainless-steel orthodontic wire is applied to a tooth, as in the figure below. The wire has an unstretched length of 3.42 cm and a radius of 0.14 mm. If the wire is stretched 0.13 mm, find the magnitude and direction of the force on the tooth. Disregard

    asked by Sam on March 26, 2013
  2. Chemistry

    CaO +H2O= Ca(OH)2 The initial mass plus the test tube is 10.860g after picking up water to give calcium hydroxide the total mass of the tube and ca(oh)2 is 11.149g What is the mass of the test tube? ..I did 11.149-10.86=.289 h2o , 40.08/56.08=ca %

    asked by Alexis on September 15, 2015
  3. math help please

    two cards are dealt in succession from a standard deck of cards. find the probability that the first card is a diamond or a king. probability that the second card is red given that the first card was a heart. if two dice are rolled, what is the probability

    asked by Kennedy on January 19, 2009
  4. psychology

    My question is about connectionism.I have a program that conctruct connectionist models.Presumably I have number of unit for example one of them is unit1 that represent room: for example office how do I find out data input for that unit I saw somewhere

    asked by katarzyna rochowicz on June 3, 2010
  5. Math URGENT!!

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the

    asked by Maya on September 28, 2014
  6. Math

    Forensic scientists use the lengths of certain bones to calculate the height of person. A bone often used is the tibia (t), the bone from the ankle to the knee. A man’s height (h) is determined from the length of this bone using a function defined by the

    asked by Silvio on February 28, 2014
  7. Physics

    a 4.50 kg mass traveling east at 5.0 m/s has a head-on elastic collision with a 1.5 kg mass traveling west at 3.0 m/s. find the velocity of each mass after the collision. my work so far: vif= (4.50-1.5/4.50 + 1.5) x2 v2f= (2m1/4.50+1.5) x 2 I don't get the

    asked by Kasey on January 11, 2016
  8. Repost-Physics 1

    A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

    asked by John on October 9, 2012
  9. physics

    9-Volt battery is used to charge a 375 mF capacitor over a 147 Ù resistance. How many seconds will it take for the capacitor to reach 75% of its maximum charge? Hint: The equation below represents the charge of a charging capacitor as a function of time Q

    asked by crystal on March 10, 2011
  10. Physics!!

    A car moving at 16.0 m/s, passes an observer while its horn is pressed. Find the difference between the frequencies of sound heard when the car approaches and when it recedes from the stationary observer. The velocity of sound is 343 m/s and the frequency

    asked by sophie on April 4, 2009
  11. Calculus 1

    A 10m ladder leans against a wall at an angle theta with the horizontal. The top of the ladder is x metres above the ground. If the bottom of the ladder is pushed towards the wall, find the rate at which x changes with respect to theta when theta equals 60

    asked by Yain on April 22, 2012
  12. Physics 1

    A skier of mass 109 kg travels down a frictionless ski trail. a)If the top of the trail is a height 218 m above the bottom, what is the work done by gravity on the skier? _____J b)Find the velocity of the skier when he reaches the bottom of the ski trail.

    asked by John on October 8, 2012
  13. Math

    Find the accumulated amount A if the principal, P = $3700 is invested at the interest rate r = 7%/year for t = 12.5 years compounded semiannually. Round your answers to two decimal places. ​ a. The accumulated amount is $8544.01. b. The accumulated

    asked by Jass on October 22, 2016
  14. Math 1 question

    There are 35 marbles in a bag: 9 blue marbles, 8 green marbles, 4 red marbles, 8 white marbles, and 6 yellow marbles. Find P(red). Write the probability as a fraction in simplest form, a decimal, and a percent. four over thirty-one, 0.129, 12.9% four over

    asked by HeELP ME FAST!!! on May 24, 2014
  15. Physics

    A particle is at rest at the apex A of a smooth fixed hemisphere whose base is horizontal. The hemisphere has centre O and radius a. The particle is then displaced very slightly from rest and moves on the surface of the hemisphere. At the point P on the

    asked by Chris on February 4, 2012
  16. physics

    1.A cylinder rolls without slipping on a horizontal plane and then up an incline. The linear speed of the cylinder at the beginning is v. What maximal height h will the cylinder reach? 2.Helicopter of mass M holds stationary in the air fires a missile of

    asked by Sandhya on May 3, 2011
  17. Math quick question!

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the

    asked by Maya on September 28, 2014
  18. social studies

    Countries in the world have to work together to find solutions to sharing resources. How can countries of the South contribute? How can countries of the North contribute? How can you contribute? This is a question from my social's text book. I can't seem

    asked by rakhi on May 18, 2010
  19. Math

    A rectangular garden has an area if 12a^2-5a-2m^2 A.) Write the area as the product of two binomials with integer coefficients B.) the garden is to be completely enclosed by a path 1 m wide. find and simplify an expression for the area of the path C.) the

    asked by Maya on September 28, 2014
  20. PHYSICS

    A PERSON LOWERS A BUCKET INTO A WELL BY TURNING THE HAND CRANK. THE CRANK HANDLE MOVES WITH A CONSTANT TANGENTIAL SPEED OF 120M/S ON ITS CIRCULAR PATH. THE ROPE HOLDING THE BUCKET UNWINDS WITH OUT SLIPPING ON THE BARREL OF THE CRANK. FIND THE LINEAR SPEED

    asked by kassy on November 8, 2016
  21. would someone please check this math

    1 four buttons have diameters of 5/8 , 3/4, 9/16, and 7/8 which buttons is smallest? answer 9/16 2. I spent 1/3 of my time doing math homework and 2/7 preparing for a history test . what fraction of study time remain? answer: 13/21 3. least common multiple

    asked by larry on February 8, 2007
  22. math

    Factor: x^3 - 3/4x - 1/4 The answer is: (x - 1)(x + 1/2)^2 How do I learn to do that? I'd like to reread an appropriate chapter from an appropriate textbook and do practice problems. It takes experience and practiced eye. Algebra books have chapters on

    asked by mathstudent on January 2, 2007
  23. math

    graph the line with slope 1/2 passing through the point(-5,-2) find the slope of the line 5x+5y=3 write answer in simplest from consider the line 2x-4y=4 what is the slope of a line perpendicular to this line. what jis the slope of a line parallel to this

    asked by Anonymous on February 10, 2013
  24. Algebra

    an investment of 72,000 was made by a business club. the investment was split into three parts and lasted for one year. the first part of the investment earned 8% interest. the second 6% and the third 9%. total interest from the investments was $5640. the

    asked by Sarah on March 9, 2011
  25. math

    The value of a new car decreases exponentially.Suppose your mother buys a new car for 22,000. The value of the car decreases by 20% each year. a.what is the initial price of the car. The decay factor. b. write an equation to model the value of the cars

    asked by john on October 14, 2012
  26. algebra

    an investment of $50,000 was made by a busines club. the investment was split into three parts and lasted for one year.the first part of the investment earned 8% interest, the second 6%, and the third 9%. total interest from the investments was $3960. the

    asked by mike on March 6, 2013
  27. Calculus

    A cone is inscribed in a sphere of radius a, centred at the origin. The height of the cone is x and the radius of the base of the cone is r, as shown in the diagram opposite. Find the height, x, for which the volume of the cone is a maximum. (HINT: show

    asked by Grant on May 6, 2013
  28. math help me out

    p and q started a business. they made an annual profit of rs 50000. q being a working partner received 20 % of the annual profit as his salary. if the entire profit were divided in the ratio of their investment, p would received rs 8000 more as his profit

    asked by dharmesh on August 23, 2016
  29. Precalc

    An investment of $37,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the the third 9%. Total interest from the investments was

    asked by Kai on November 28, 2012
  30. Language Arts (ASAP)

    3. In "All Together Now," Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then, explain whether you find Jordan's appeals

    asked by Jason on December 6, 2016
  31. Statistics

    1. A simple random sample of FICO credit rating scores is listed below: 714 751 664 789 818 779 698 836 753 834 693 802 a. Find range, variance, and standard deviation. b. As of this writing, the mean FICO score was reported to be 678. Based on these

    asked by Shannon on October 5, 2013
  32. bio 106

    Imagine that you are plant hunter embarking on a safari that takes you to the far reaches of your neighborhood supermarkets. In the aisles of your grocery store, see how many plants and plant products you can find to answer the following questions. Look

    asked by abdul on August 5, 2013
  33. english (for Sra) repost

    The Lady of Shalott I have two events and have to find the quotation. 1st event The handsome, dazzling figure of Sir Lancelot rides by in his shining armour. The Lady sees him in the mirror and can no longer bear her imprisonment. 2nd event The Lady floats

    asked by george on March 20, 2011
  34. science(chem) Please check by today

    I REALLY REALLY NEED this to be checked by the END OF THE Day since my finals are tomorrow and I need to know if this is the correct way to do this type of question PLEASE TELL ME IF IT IS CORRECT. I AM posting this again since nobody replied to the other

    asked by christina on July 23, 2007
  35. math,algebra II

    I have to work with these types of problems dealing with matrises can someone show me how to solve them.Heres one of them: Directions: Find the values of the variables in each equation in the first matrix it looks like this a+2 3z+1 5m 4k 0 3 then theres a

    asked by jas on June 6, 2007
  36. English

    I have to write a "Descriptive essay" for my composition class and I need help proof reading my essay. This is the third draft I have done. I had to cut out over 400 words. The essay can be no more than 750 words. That is exactly how many I have right now.

    asked by Sandy on September 7, 2014
  37. Algebra

    Here's another problem I'm having a little trouble with: A piece of string is 40 cm long. It is cut into three pieces. The longest piece is 3 times as long as the middle-sized piece, and the shortest piece is 23 cm shorter than the longest piece. Find the

    asked by Celina on November 14, 2008
  38. calculus

    A convex lens of a focal length f can be defined by the lens equation 1/f=1/p + 1/q if an object is a distance p from the lens, then the distance q from the lens to the images. For a particular lens, f=2cm and p is increasing find 1. a general formula for

    asked by donnie on February 20, 2017
  39. math plz help

    Task 2: Use the table to complete each part. a. Copy the table. Extend the table by writing expressions for y when x = 5, 6, and 7. b. Simplify each expression for y in the table from part (a). What pattern do you notice in the simplified expressions? c.

    asked by electroShark797 on August 26, 2013
  40. statistics

    twenty light bulbs are tested three light bulbs fail the test. two light bulbs are selected at random without replacement from this collection of bulbs find the probablilty that both light bulbs failed the test. round the answer 3 decimals places

    asked by bernie on July 29, 2016
  41. Maths

    The question is "Show that z-2 is a factor of P(z)= z^3+mz^2+(3m-2)z-10m-4 for all values of m. For what values of m is (z-2)^2 a factor of P(z)?" I've proven the first part, using synthetic division, for all values of m. But the second part, I don't

    asked by TP on April 13, 2009
  42. Physics

    The length of a string is 344 cm. The string is held fixed at each end. The string vibrates in two sections; i.e., the string has two antin- odes, and the string vibrates at 130 Hz. Find the wavelength. Answer in units of m. What is the fundamental

    asked by AJ on October 5, 2012
  43. math 1 question pls help!!!!!

    7. A rectangular prism has a width of 92 ft and a volume of 240 ft3. Find the volume of a similar prism with a width of 46 ft. Round to the nearest tenth, if necessary. (1 point) 30 ft3 40 ft3 60 ft3 120 ft3*** this one was tricky pls help asap!!! thanx in

    asked by TTR+S<3 on March 20, 2014
  44. Geometry

    Need help finding dimensions of a triangular prism. It has a volume of 900 cubic inches. Two of the dimensions are consecutive even numbers. Two of the dimensions are multiples of 5. All the dimensions are less than 16, but greater than 6. All lengths are

    asked by Brett on May 20, 2010
  45. Physics

    A large uniform chain is hanging from the ceiling, supporting a block of mass 48kg. The mass of the chain itself is 15 kg, and the length of the chain is 2.6 m. The acceleration of gravity is 9.81 m/s^2 Find the tension in the chain at the point where the

    asked by sam on September 24, 2012
  46. maths

    the total revenue and the total profit functions (in Ringgit) of a product are given as follows: total revenue :R(x)= x^3-95-800x total profit: P(x)=1/3x^3+800x-120 where x is the number of units produced and sold. find the level of production in which the

    asked by Andrew on January 4, 2015
  47. physics

    A car, mass - 1950 kg, accelerates at +2.33 m/s (squared). Find the magnitude of the normal force acting on the car. If later, when the car is cruising at 26.5 m/s, the driver applies a force of magnitude 10,000 N to stop the car. What is the distance it

    asked by jane on February 12, 2012
  48. physic

    A hockey player strikes a puck that is initially at rest. The force exerted by the stick on the puck is 950 N, and the stick is in contact with the puck for 4.4 ms (0.0044 s). (a) Find the impulse imparted by the stick to the puck. (b) What is the speed of

    asked by glenmore on December 4, 2011
  49. physics (tension in strin and acceleration of syst

    two bodies of 9kg and 5.7kg are attached with ends of a string which passes over a pulley so that both bodies move vertically starting from rest at equal heights,lighter body hits pulley in 1.2sec.find length of string and speed with which it hits

    asked by ahsan asghar on August 21, 2011
  50. physics

    On a spacecraft two engines fire for a time of 748 s. One gives the craft an acceleration in the x direction of ax = 5.21 m/s2, while the other produces an acceleration in the y direction of ay = 3.45 m/s2. At the end of the firing period, the craft has

    asked by Samantha on October 5, 2013
  51. Pre-Calc

    A company produces portable cassette players estimates that the profit P (in dollars) for selling a particular model is P=-76x^3+4830x^2-320,000, 0 ≤ x ≤ 50, where x is the advertising expense (in tens of thousands of dollars). Using this model, find

    asked by Sam on January 20, 2015
  52. Physics

    Two objects are connected by a light string that passes over a frictionless pulley as in the fi gure. One object lies on a frictionless, smooth incline. In the figure, m1 = 8.48 kg, m2 = 4.84 kg, and  theta = 40.2 degrees . When we let go of the mass m1,

    asked by Lindsey on January 27, 2013
  53. Physics B

    On a spacecraft two engines fire for a time of 615 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has

    asked by Cindy on September 10, 2012
  54. physics

    A PARTICLE OF MASS M IS SHOT WITH an initial velocity v making an angle b with the horizontal,the particle moves in the gravitational field of the earth. find the angular momentum of the particle about the origin when the particle is at the origin ,at the

    asked by mechanics on August 22, 2013
  55. Physics

    A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find: (a) The projectile total time of flight. (b) The maximum height attained (c) The total horizontal traveled (d) The

    asked by Abraham on September 24, 2012
  56. Houston community college

    A projectile is fired from ground level with an initial velocity of 50m/s and an initial angle of 30degree. Assuming g= 9.8 m/s*2, find: (a) The projectile total time of flight. (b) The maximum height attained (c) The total horizontal traveled (d) The

    asked by Abraham on September 24, 2012
  57. Physics, fluid mechanics

    The temperature of earth atmosphere drops 5°C for every 1km elevation above the earth surface. If the air temperature at ground level is 15°C and 760 mmHg, determine the elevation in m when the pressure is 380 mmHg. Assume the air is an ideal gas with

    asked by Eurt on June 10, 2017
  58. English I

    Romeo and Juliet In three (or less) paragraphs discuss whether Shakespeare alludes to night in a positive or negative way. Noting as may instances you can d=find where the word night appears then determine whether the word has a positive or negative

    asked by Micah on April 8, 2011
  59. PHYSICS

    An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 1.00 × 104 V. (a) Find the final velocity after the original acceleration period. (b) It then passes between two horizontal plates 6.0 cm long and

    asked by Arianne on February 24, 2010
  60. physics

    A kite is hovering over the ground at the end of a straight 47-m line. The tension in the line has a magnitude of 14 N. Wind blowing on the kite exerts a force of 17 N, directed 55° above the horizontal. Note that the line attached to the kite is not

    asked by Dee on February 28, 2013
  61. History

    Which accurately describes exploration events of Sir Francis Drake? drake found a northwest passage to Asia through present-day Canada drake sailed to the new world and founded the colony of Jamestown drake sailed north along the coast of Greenland to find

    asked by malia on October 27, 2017
  62. PHYSICS

    Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #8: A 20 kg block of ice slides without friction down a

    asked by Anna on March 7, 2013
  63. statistics

    There are three brands of milk for sale in a supermarket. Let's call them brand A, B, and C. A customer who purchases milk will choose brands A,B, and C with probability 0.6, 0.3, 0.1, respectively. Each day, the toal number of customers who purchase milk

    asked by MH on December 14, 2014
  64. Math

    A fence is to be built to enclose a rectangular area of 200 square feet. The fence along three sides is to be made of material that costs 3 dollars per foot, and the material for the fourth side costs 13 dollars per foot. Find the length L and the width W

    asked by Thomas on March 23, 2011
  65. Thermodynamics

    A lawnmower tractor engine produces 18hp using 40kW of heat transfer from burning fuel. Find the thermal efficiency and the rate of heat transfer rejected to the ambient. I converted the power to 13.24kW then found the efficiency by dividing 13.24kW by

    asked by Kyle on June 12, 2013
  66. math

    2.FIND THE TRADE DISCOUNT cost price = RM1780 rate of trade discounot = 30%,10% and 5% as we know to get trade discount is= list price X trade disount rate so i do : RM1780x0.3xo.1xo.o5 = RM2.67 BUT in my book the answer is RM714.67. WHAT the step or

    asked by fizz on April 26, 2014
  67. Math

    1. Graph the points A ( -5,0) B ( -4, 3) and C ( 0, -4) A B C D 2. Identify the quadrant in which (3, -6) lies A II B IV C I D III 3. Determine which ordered pair is a solution of y = 2x - 3 A ( -2, 7) B ( 0, 3) C ( -4, -11 D ( 5, -7 5. Graph the linear

    asked by Justin on March 23, 2017
  68. AOU

    How should the decision making process be followed in order to make good decisions to respond to the situation faced by the BBC in 2001? #1 - Remember that we don't do students' homework for them. #2 - Your question is not clear, which may be why you're

    asked by mohd on April 26, 2007
  69. English

    Instructions: Choose the correct word to complete the sentence. My answers are with capital letter My friend Roger …will or USE TO …always ask me about his computer. I .. USED TO or use to …try to help him out. He use to or WOULD … go on and on and

    asked by Alex on September 26, 2017
  70. algebra

    Suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate parameter of 11% per hour. Suppose also that a sample culture of 1000 bacteria is obtained from this population.

    asked by rhonda on November 29, 2016
  71. physical

    Two mountain climbers are working their way up a glacier when one falls into a crevasse. The icy slope can be considered frictionless. Sue's weight is pulling Paul up the 45* slope. If Sue's mass is 66kg and if she falls 2m in 10s starting from rest, find

    asked by Ywome on October 13, 2013
  72. Physics: Energy & Work Done

    A spring of negligible mass has a force constant k = 1600 N/m. You place the spring vertically with one end on the floor. You then drop a 1.20 kg book onto it from a height of 0.8 m above the top of the spring. Find the maximum distance the spring will

    asked by Anonymous on September 14, 2012
  73. chemistry

    The combustion of 1.014g of benzoic acid brings a temp change of 22.2 to 24.86^0C During the process the fuse of the bcalorimeter melts from 0.12g to0.010g .with delta H=5857j/g Find the energy change for the overall process Combustion of Benzoic acid is

    asked by heloise on March 10, 2018
  74. math

    A card is selected from a deck of 52 playing cards. Find the probability of selecting · a prime number under 10 given the card is a heart. (1 is not prime.) · a diamond or heart given the card is red. · a King, given that the card is not a spade. Show

    asked by Melissa on July 31, 2011
  75. physics

    problem says that a cannon ball is fired at a 30 degree angle off a 10 meter high wall at 80 m/s. Use work and energy to find it's impact speed. I worked out this out with the equation: (1/2)(mass)(initial velocity)^2 + mgy = (1/2)(mass) (final velocity)^2

    asked by Taylor on November 9, 2010
  76. Math

    The height of a ball t seconds after it is thrown upward from a height of 6 feet and with an initial velocity of 80 feet per second is f (t) = -16t^2 + 80t + 6. According to Rolle's Theorem, what must be the velocity at some time in the interval (2, 3)?

    asked by Angelina on March 8, 2012
  77. Algebra

    Joseph wanted to throw a ball to John who was on a balcony 32 feet above him,so he tossed it upward with an initial speed of 48ft/sec. John missed it on the way up but caught it on the way down. How long was the ball in the air? What was its maximum

    asked by Rosa on January 2, 2011
  78. chemistry

    If the initial pressure of SO3(g) is 4.775 atm, calculate the % of SO3(g) left over after the reaction reaches equilibrium according to the balanced equation. The value of Kp at 1000 K is 24.40. The initial pressure of the reaction products is 0 atm.

    asked by bme1 on April 7, 2010
  79. chem

    a gas mixture is comprised of 32% oxygen and the rest is nitrogen. If the scuba tank is pressurized to a total pressure of 132 atm what are the partial pressures of the oxygen and nitrogen inside the tank? I'm having trouble understanding how to find

    asked by Anna on May 30, 2016
  80. Calculus

    I am unsure of how to take the derivative of this equation. It may be the exponents that are giving me trouble but I'm not sure exactly. Find the equation of the tangent line to the curve 4e^xy = 2x + y at point (0,4). On the left side, is the "xy" the

    asked by Aurora on June 11, 2007
  81. physic echooo

    A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than to the other. He fires a gun and, after a while, hears three echoes. The second echo arrives 2.4 s after the first, and

    asked by kya on April 11, 2011
  82. statistics

    The ages (in years) of 10 infants and the number of hours each slept in a day Age, x: 0.1, 0.2, 0.4, 0.7, 0.6, 0.9, 0.1, 0.2, 0.4, 0.9 Hours slept, y: 14.9, 14.5, 13.9, 14.1, 13.9, 13.7, 14.3, 13.9, 14.0, 14.1 Find the equation of the regression line. Then

    asked by Amanda on April 18, 2012
  83. physics

    A military gun is mounted on a railroad car (m = 1590 kg) as shown in Figure P7.34. There is no frictional force on the car, the track is horizontal, and the car is initially at rest. The gun then fires a shell of mass 26 kg with a velocity of 280 m/s at

    asked by megan on October 2, 2011
  84. physics

    Suppose that the attraction between the moon and the earth were due to Coulomb forces rather than gravitational force. What would be the magnitude of the charge required if equal but opposite charges resided on both earth and moon? Mass of earth =

    asked by Andy on January 19, 2010
  85. physics

    Two mountain climbers are working their way up a glacier when one falls into a crevasse. The icy slope can be considered frictionless. Sue's (the one who fell) weight is pulling Paul up the 45 degree slope. If Sue's mass is 66 kg and if she falls 2 min 10

    asked by sam on October 9, 2012
  86. Math

    The height of a ball t seconds after it is thrown upward from a height of 6 feet and with an initial velocity of 80 feet per second is f (t) = -16t^2 + 80t + 6. According to Rolle's Theorem, what must be the velocity at some time in the interval (2, 3)?

    asked by Angelina on March 7, 2012
  87. Physics

    On a spacecraft two engines fire for a time of 555 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has

    asked by Donald on September 18, 2012
  88. math

    A study conducted by a TV station showed the number of televisions per household and the corresponding probabilities for ecach. Find the mean, variance, and standard deviation. (in table) Number of televisions 1 2 3 4 Probability P(X) 0.32 0.51 0.12 0.05

    asked by Lesley on April 10, 2013
  89. physics

    You swing a 1.40m long string with a metal ball attached to its end in a vertical circle, such that the speed of the ball does not change but the rope is always taut. The tension in the string when the ball is at the bottom of the circle is 64.0N more than

    asked by sal on November 15, 2018
  90. math quadratic functions

    Alice cuts a ribbon of length 40cm into two pieces to form two squares as shown in th figure (there was no figure, but from my assumption the two squares are probably different ). Let xcm be the length of a side of one of the two squares a)express the

    asked by Rose on August 8, 2016
  91. Communication and Gender Studies

    How Could this dilemma be resolved?: A porcupine is looking for a place to live in the winter. A family of moles invites the porcupine to stay with them. But after a while, they discover that they are constantly being pricked by the porcupine's quills.

    asked by Alicia on June 30, 2010
  92. math

    average daily balance . find the credit card finance charge for the month of august (31 days) the annual interest rate is 18% July 31 balance $510 August 9 charge $86 August 10 payment $390 August 22 charge 147 August 27 charge $14

    asked by medlin on February 2, 2013
  93. 8th Grade Algebra: Answer Check

    Find the length of the 3rd side of each right triangle. 1. 8^2+15^2=c^2 Answer: c=17 2. 5^2+b^2=13^2 Answer: b=12 3. 9^2+13^2=c^2 Answer: c~15.81 Simplify. Assume that all variables are nonnegative. { this means square root 4. {12 Answer: 2{3 5. 2{75

    asked by Joy on January 20, 2009
  94. iworo ajido

    a tree is on one side of a river two point p and q 15metre apart are chosen on the other side of the river in a straight line with the foot of the tree on a horizontal plane.the angle of elevation of the top of the tree from p and q 32degree and 51degree

    asked by hunpevi on June 9, 2015
  95. Brokport

    An investment of $180,000 was made by a business club. The investment was split into three parts and lasted for one year. The first part of the investment earned 8% interest, the second 6%, and the third 9%. Total interest from the investments was $8520.

    asked by keisha on April 25, 2016
  96. math

    can you help math question units rates find unit rate for each situation read 50 pages in 1 hr 25 min i got : 50 divide by ttl 85 min and got 0.588 = .59 hike 5 mile in 2hr 10 min i got: 130 min ttl divide 5mile is got 26 mile per min are these right?

    asked by marko on January 26, 2012
  97. Greek poetry?

    Did the greeks have poetry in the mythology days?? or was it just the romans. im trying to find another difference bewteen the romans and the greeks in thier glory days..... Both had poetry. The only main difference is the names and possible uses for their

    asked by Alexx on June 28, 2007
  98. Civics

    Which would you most likely find a smaller amount of in a government budget than in a personal or household budget? A. The percent of total income that goes towards national defense and health care B. The percentage of people affected by the budget who are

    asked by Carla on May 24, 2017
  99. physic

    Hi! Question:A ball is tossed from an upper-story window of a building.The ball is given an initial velocity of 7.80m/s at an angle of 21.0 degrees below the horizontal.It strikes the ground 3.00s later. A.How far horizontally from the base of the building

    asked by Chan on September 30, 2009
  100. Stats

    Cans of regular Coke are labeled as containing 12. Statistics students weighted the content of 10 randomly chosen cans, and found the mean weight to be 12.1. Assume that cans of Coke are filled so that the actual amounts are normally distributed with a

    asked by S on October 20, 2012

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