1. Physics

    A circular track has several concentric rings where people can run at their leisure. Phil runs on the outermost track with radius rP while Annie runs on an inner track with radius rA = 0.90 rP. The runners start side by side, along a radial line, and run

    asked by Abby on October 6, 2016
  2. economics

    At an initial point on the aggregate demand curve, the price level is 100, and real to GDP is $15trillion. After the price level rises to 110, however, there is an upward movement along the aggregate demand curve, and real GDP declines to $14 trillion. If

    asked by Tina on July 9, 2011
  3. physics

    A child, who is 45 m from the bank of a river is being carried downstream by the river's swift current of 1.0 m/s. As the child passes a lifeguard on the river's bank, the lifeguard starts swimming in a straight line until she reaches the child at a point

    asked by Jean on September 3, 2014
  4. Calculus

    The horizontal position of an object from a point of origin in meters is modeled by the function x(t)= (1+sin(t))/(2+cos(t)) where t is measured in minutes and 0 is less than or equal to t which is less than or equal to 5. A) show that x(t)= (2cos(t)+sin

    asked by Rodger on December 19, 2016
  5. maths

    (a) A random survey of 100 mobile telephone customers indicated that 96 of them had not experienced any difficulties in making mobile calls in the previous 3 months. (i) Derive a point estimate for customer satisfaction levels with the service (ii)

    asked by Kate on April 26, 2012
  6. Math

    CAN YOU HELP ME MS.SUE JUST GIVE ME THE ANSWER PLEASE I TRY AND TRY AND TRY AND STILL I CAN'T DO IT PLEASE I NEED HELP PLEASE GIVE ME THE ANSWER ANYBODY MS.SUE ANYBODY PLEASE HELP ME WITH THIS PLEASE PLEASE GIVE ME THE ANSWER PLEASE :( :( :( :( :( :(

    asked by Dianna on March 23, 2013
  7. reading and writing

    Paddy and Clare are writing effective conclusions. Paddy's conclusion will summarize his main point and reaffirm his theses statement. Clare's conclusion will take the readers beyond the scope of her essay. Who is writing an effective conclusion? A. Both

    asked by Clare on March 31, 2015
  8. Physics

    When a spacecraft travels from the Earth to the Moon, both the Earth and the Moon exert a gravitational force on the spacecraft. Eventually, the spacecraft reaches a point where the Moon's gravitational attraction overcomes the Earth's gravity. How far

    asked by Sam on October 13, 2012
  9. Physics (When will Kathy overtake Stan if )

    Kathy has a sports car that can accelerate at the rate of 4.90m/s^2. She races with Stan. Both cars start from rest but experienced Stan leaves starting line 1.00s before her. Stan moves with a constant aceleration of 3.90m/s^2 and Kathy maintains an

    asked by ~christina~ on September 25, 2007
  10. calculus

    a)find the first partial derivatives of f(x y)= x √1+y^2 b)find the first partial derivatives of f(x,y)= e^x ln y at the point (0,e)

    asked by maria on March 11, 2012
  11. Physics

    Charge A and charge B are 2.00 m apart, and charge A is +3.90 C and charge B is +4.00 C. Charge C is located between them at a certain point and the force on charge C is zero. How far from charge A is charge C?

    asked by Bill on July 16, 2010
  12. Algebra

    Use the above graph of f(x) to complete the following table for values of its inverse function, f^{-1}(x). The graph has a point on (2,2)the y-intercept is 4 the x intercept is 3 x =-4, 8, 0, -2, 2 f^{-1}(x) Note: You can earn partial credit on this

    asked by kim on June 7, 2015
  13. Algebra

    b)The water line is given by the equation y=-2/3x-12 Suppose you want to put a pink flamingo lawn ornament in your backyard, but you want to avoid placing it directly over the water line, in case you need to excavate the line for repairs in the future.

    asked by Mandy on June 26, 2008
  14. Damon or DrBob please help..chemistry/physics

    Question: 0.37 litre of an ideal monatomic gas (Cv,m = 3R/2) initially at 51 °C and 36 atm pressure undergo an expansion against a constant external pressure of 1.06 atm, and do 2.3 kJ of work. The final pressure of the gas is 1.06 atm. Calculate the

    asked by Ashley on January 22, 2016
  15. English (SATIRE)

    How does this one show SATIRE??? i have an idea but im not 100% sure its right. WHY GOLF IS GREAT What is the best sport? It's one of the great debates in our country, one which you can hear argued at your local bastion of culture we commonly call the

    asked by Soraya HELP!!! on April 12, 2009
  16. Writing Skills Writing Assignment

    I am trying to complete a 750 to 1000 word essay but I completely have no clue what to write about and my writing skills is a bit lacking. It needs to be about a personal experience. I have more info if needed.This is the final paper result. Your final

    asked by Jen on March 14, 2014
  17. Calculus

    Hi! My question is: Given that f is a function defined by f(x) = (2x - 2) / (x^2 +x - 2) a) For what values of x is f(x) discontinuous? b) At each point of discontinuity found in part a, determine whether f(x) has a limit and, if so give the value of the

    asked by Hillary on September 24, 2009
  18. Financial accounting

    What does rule of thumb evaluation method mean? no matter how many times i read this, I get different answers..and how would I calculate this or what is the formula for the rule of thumb evaluation method??? I am supposed to compute this example: Arcadia

    asked by anonymous on March 5, 2010
  19. american goverment check answers

    6.  In January 2013, the United States officially recognized the government of Somalia for the first time since 1991. Which of the following is one reason for this action? (1 point)

    asked by Anonymous on November 1, 2016
  20. Physics

    The cable of an elevator of mass M = 1020 kg snaps when the elevator is at rest at one of the floors of a skyscraper. At this point the elevator is a distance d = 18.4 m above a cushioning spring whose spring constant is k = 6500 N/m. A safety device

    asked by Elle on October 27, 2007
  21. Physics

    The cable of an elevator of mass M = 1020 kg snaps when the elevator is at rest at one of the floors of a skyscraper. At this point the elevator is a distance d = 18.4 m above a cushioning spring whose spring constant is k = 6500 N/m. A safety device

    asked by Elle on October 27, 2007
  22. english

    American interest in mixed martial arts is growing. Both male and female athletes are invited to compete, although this sport is not recommended for the prima donna. This full contact fighting combines various martial arts techniques so fighters with

    asked by yamean on May 27, 2015
  23. Algebra

    Take the real-life situation and create an equation or inequality that could be used for analysis, prediction, or decision making. Then, draw a graph to depict the variables in your situation. Use your graph and what you know about linear inequalities to

    asked by Evevlyn on July 2, 2007
  24. Plz Check my Geometry(sOo0n)

    Out of 31 questions these are ones I struggled with. after the = sign is what I think the answer( except for #4, I don't know what to do at all), is so if I'm wrong can someone correct it with an explanation/formula with it please? 1.) Find the area of the

    asked by Ariel on June 10, 2010
  25. Social studies

    A small, but wealthy and powerful,church community is seeking to buy the only television station in a 200 mile radius. Based on the point of view presented,what is the best argument against this sale? 1) tax money should not be used to support the church

    asked by sandra on April 18, 2017
  26. Science

    What are the disadvantages of cutting down rainforests? I've already looked it up and got some info, so if anyone knows any additional info i could add to it, I'd appreciate it. Well, here's what I got: -Trees produce Oxygen and carbon dioxide -farmers CAN

    asked by John on January 12, 2009
  27. Math

    1. Imagine driving down a mountainside. You see a sign indicating there is a 12% grade. Approximate the amount of horizontal change in your position if you note from elevation signs that you have descended 2000 feet vertically. Use the embedded equation

    asked by Khylisha on February 9, 2011
  28. Plz Check my Geometry(sOo0n)

    Out of 31 questions these are ones I struggled with. after the = sign is what I think the answer( except for #4, I don't know what to do at all), is so if I'm wrong can someone correct it with an explanation/formula with it please? 1.) Find the area of the

    asked by Ariel on June 10, 2010
  29. groundwater science

    Assume that a losing stream exists in physical connection with groundwater in an isotropic unconfined aquifer. Assume that several contour lines of equal head cross the stream and intercept it. These contour lines of equal head are "V-shaped", with the

    asked by dan on February 19, 2011
  30. Chemistry

    A student titrates a 25.00 mL sample of HCl. If 20.50 mL of 0.175 M of KOH is required to reach the end point, what is the concentration of the HCl? 25.0 mL HCl x 1L/1000 mL x 0.175 M/1 L = 0.004375 mol HCl 0.004375 mol HCl/20.50 mL KOH x 1000 mL/1 L =

    asked by Linda on November 19, 2015
  31. English

    The habitat of a cactus is? Capable of storing water Choices are : Very Prickly, Capable of storing water, graish-green or the desert A mundane experience, in most people’s opinion, would be: A: Grocery shopping. C. Sky-drying B Meeting one’s future

    asked by jennifer on November 29, 2015
  32. College Algebra

    A person who is 6 feet tall walks away from flagpole toward the tip of the shadow of the flagpole. When the person is 30 feet from the flagpole, the tips of the person's shadow and the shadow cast by the flagpole coincide at a point 5 feet in front of the

    asked by Brittany on November 25, 2007
  33. SCIENCE HELP PLS

    How does using coal to generate electricity affect the environment? (1 point) Using more coal reduces the amount of pollution from using oil. Using coal improves the quality of nearby water. Using coal, instead of wood from trees, helps improve the

    asked by Annaleigh on May 27, 2016
  34. Math

    I am not sure how to go about figuring this out ... Shuffle the numbered cards of an ordinary deck of cards (aces equal 1). Pick out one card to be the answer card. Then deal off the top four cards to use for an equation. Try to use 2,3,or all 4 cards to

    asked by Dylan on September 9, 2007
  35. Government

    I am a college student but I really need help with one of my classes. I was wondering if you could help. Thanks! How did the Voting Rights Act of 1965 and the Civil Rights Act affect other minority groups? These articles point out that the Civil Rights and

    asked by Kat1025 on October 23, 2006
  36. physis

    A house painter stands 3 m above the ground on a 4.9-m-long ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 697 N and the ladder weighs 180 N. Assuming no friction between the house and the upper end of the ladder,

    asked by hankash on March 4, 2013
  37. physics - Damon

    PLEASE SEE ADDITIONAL QUESTION AT BOTTOM. A pendulum was set up and measurements were made to enable the mechanical energy to be calculated at the start position S and the lowest point of the pendulums swing L. The mass of the pendulum bob was determined

    asked by Sarah on January 30, 2010
  38. Pre Calculus 12

    Modelling with sine/cosine A Ferris wheel has a diameter of 30m. The bottom of the wheel is 1.5m off the ground it takes 3.5min to make one complete revolution. a person gets on ferris wheel at its lowest point at time = 0. write an equation that

    asked by Shreya on January 23, 2013
  39. physics

    A 2kg block situated on a rough incline is connected to a spring of negligible mass having a spring costant of 100N/m.the pulley is frictionless.the block is released from rest when the spring is unstretched.the block moves 20 cm down the incline before

    asked by virginia on April 2, 2015
  40. statistics

    Based on data collected by the National Center for Health Statistics and made available to the public in the Sample Adult database, an estimate of the percentage of adults who have at some point in their life been told they have hypertension is 23.53

    asked by Hussain on March 21, 2019
  41. biology o science

    Very few fossils of jellyfish or their close relatives have been found. This makes it hard to trace the evolutionary history of jellyfish using the fossil record. What explains this? (1 point) Jellyfish fossils are buried deep under the ocean floor, not in

    asked by claudia 2015 on May 14, 2015
  42. English

    Identify the infinitive phrase in the sentence below. The pilot agreed to fly from Texas to Oklahoma. (1 point) agreed to fly fly from Texas to Oklahoma to fly from Texas to Oklahoma

    asked by smileyfaceL0L on October 2, 2012
  43. Math

    Lee walks along the edges of a rectangular pool from point A to B to C to D, a distance of 38 metres. Marina walks along the edges of the same pool from B to C to D to A, a distance of 31 metres. What is the perimeter of the pool, in metres?

    asked by Al on October 24, 2017
  44. Algebra

    Can you please help me with the below question: The vertex of a parabola is located at (-12, -1). The parabola also passes through the point (-10, 5). Write the equation of this parabola in both vertex form and standard form. Vertex form: Standard form:

    asked by Janae on March 4, 2017
  45. Science

    Create a scale for your model thermometer. Divide the distance between the two marks into 5-mm intervals. Starting with the lowest point, label the intervals on the straw 0, 1, 2, 3, and so on. Describe your scale below. So I don't understand this part:

    asked by Kristy on December 16, 2018
  46. Chemistry

    How many grams of steam at 100 degrees celcuis would be required to raise the temperature of 35.8 g solid benzene (C6H6) from 5.5 - 45.0 degrees celcius. (the melting point of benzene is 5.5 degrees celcius, delta H fusion for benzene is 9.87 kj/mol,

    asked by Anonymous on February 26, 2010
  47. physics

    A rifle is aimed horizontally at a target 30 m away. The bullet hits the target 1.9 cm below the aiming point. What are the a) the bullet's time of flight and b) its speed as it emerges from the rifle? A) is expose to be 62ms B) is expose to be 480m/s this

    asked by jenny on October 24, 2006
  48. Physics

    A dart gun is aimed horizontally at the center of a large target 150 m away. The initial velocity of the dart is 450 m/s. (Ignore air resistance) a) Where does the dart strike the target (relative to the center of the target)? b) To hit the center of the

    asked by Jacob on December 6, 2014
  49. physics

    A major leaguer hits a baseball so that it leaves the bat at a speed of 30.5m/s and at an angle of 36.9 degrees above the horizontal. You can ignore air resistance.At what two times is the baseball at a height of 8.50 above the point at which it left the

    asked by Tee on September 21, 2008
  50. Math-Statistics

    A marketing research company needs to estimate which of two soft drinks college students prefer. A random sample of n college students produced the following 98% confidence interval for the proportion of college students who prefer drink A: (0.384, 0.424).

    asked by Ashley on November 28, 2009
  51. Physics

    If 100 m sprinters accelerate from rest for 3.5 s at 2.8 m/s^2, how far have they run to this point? How long will it take them to complete the 100 m sprint, assuming they maintain their speed the rest of the way? I found the distance, which is 17 m, and

    asked by Emily on September 30, 2010
  52. earth-physics

    The Earth has an angular speed of 7.272 10-5 rad/s in its rotation. Find the new angular speed if an asteroid (m = 1.07 1022 kg) hits the Earth while traveling at a speed of 1.30 103 m/s (assume the asteroid is a point mass compared to the radius of the

    asked by huiol on February 26, 2012
  53. physics HELP

    Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter

    asked by dalton on April 7, 2014
  54. physics

    Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter

    asked by roger on April 6, 2014
  55. physics

    Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter

    asked by mike on April 7, 2014
  56. physics

    Consider a coaxial cable with 2Amps in the center conductor coming out of the page, and 1Amp in the outer conductor going into the page. The center conductor has a radius of 1mm, the outer conductor's inner radius is 2mm, and the outer conductor's outter

    asked by Anonymous on April 6, 2014
  57. Physics

    Two point charges, the first with a charge of +3.25×10−6 C and the second with a charge of -4.63×10−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force

    asked by Diddy on April 5, 2011
  58. Physics (PLEASE HELP!)

    Two point charges, the first with a charge of +3.25×10−6 C and the second with a charge of -4.63×10−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force

    asked by Allison on April 4, 2011
  59. Physics

    Two point charges, the first with a charge of +3.25×10−6 C and the second with a charge of -4.63×10−6 C , are separated by 25.5 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force

    asked by mink on April 5, 2011
  60. physics

    Two point charges, the first with a charge of +3.19×10^−6 C and the second with a charge of -4.32×10^−6 C , are separated by 28.0 cm. Find the magnitude of the electrostatic force experienced by the positive charge. Is the magnitude of the force

    asked by Cooper on January 23, 2012
  61. communications

    similarities and differences between writing routine and positive messages, negative messages, and persuasive messages. Recall the importance of the three step writing process and incorporate this process into your presentation. What is a routine message?

    asked by Wes on November 6, 2007
  62. Pre-Calculus

    Driving down Bald Mountain in Wyoming, Bob dean finds that he descends 1600 feet in elevation by the time he is 2.5 miles (horizontally) away from the high point on the mountain road. Find the slope of his descent (Hint: 1 mile = 5280 feet) After

    asked by Caroline on January 10, 2013
  63. calculus

    The region A is bounded by the curve y=x^2-5x+6 and the line y = -x + 3. (a) Sketch the line and the curve on the same set of axes. (b) Find the area of A. (c) The part of A above the x-axis is rotated through 360degree about the x-axis. Find the volume of

    asked by kchik on December 11, 2012
  64. Math

    David is playing a trivia game where he gains points for correct answers and loses points for incorrect answers. At the start of round 3 his score is −1500 points. During round 3 he answered five 1000 point questions correctly and three 500 points

    asked by Maddie on February 20, 2018
  65. Statistics

    A classic application of instrumental variables regression is estimating the elasticity of demand for a product. In our case, the product of interest is cigaretts. In economics, the elasticity of demand is the ratio of the percentage change in quantity

    asked by Anonymous on May 14, 2019
  66. physics

    A gry is an old English measure for length, defined as 1/10 of a line, where line is another old English measure for length, defined as 1/12 inch. A common measure for length in the publishing business is a point, defined as 1/72 inch. What is an area of

    asked by Ahmed on March 23, 2014
  67. Ant Colony (Maths)

    A colony of ants is growing so that the total number of ants present, A, after a number of weeks, t, is shown in the table. t 5 10 15 20 25 30 A 140 200 280 400 570 800 The food supply available is such that it can feed A ants at any given time, t

    asked by Ajay on June 27, 2012
  68. physics

    Concrete is pumped from a cement mixer to the place it is being laid, instead of being carried in wheelbarrows. The flow rate is 250 L/min through a 50.0 m long, 8.00 cm diameter hose, and the pressure at the pump is 8.50 ✕ 106 N/m2 (about 1200 psi). (a)

    asked by Uri on July 3, 2015
  69. physics

    A uniform rod of mass M = 0.245kg and length L = 0.49m stands vertically on a horizontal table. It is released from rest to fall. (a) Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force

    asked by jay on October 30, 2012
  70. chem

    The "proof" of an alcoholic beverage is twice the volume percent of ethanol, C2H5OH, in water. The density of ethanol is 0.789g/mL and that of water is 1.99g/mL. A bottle of 100-proof rum is left outside on a cold winter day. a) Will the rum freeze if the

    asked by alicia on February 12, 2008
  71. science

    During a competition, a 60kg cyclist rides along a horizontal road on a bike with a mass of 5kg. During her ride, she changes gears and uses the chain wheel with a radius of 7.5cm and 36 teeth, and the rear sprocket with 18 teeth. The pedal handle is 20 cm

    asked by samantha on September 2, 2010
  72. Maths - Ant Colony

    A colony of ants is growing so that the total number of ants present, A, after a number of weeks, t, is shown in the table. t 5 10 15 20 25 30 A 140 200 280 400 570 800 The food supply available is such that it can feed A ants at any given time, t

    asked by Sinha on June 25, 2012
  73. english check answers

    France is one of the most popular tourist destinations in the world, and I discovered a few of the reasons why so many people visit the country during a recent excursion. While in France, I visited numerous world-famous landmarks such as the Eiffel Tower

    asked by Robb4301 on February 20, 2015
  74. physics and guns

    A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.97-g pellet is placed against the compressed and latched spring. The spring latches at a compression of [01] cm, and it takes a force of

    asked by Lauren on December 13, 2011
  75. Physics

    A tennis player hits a ball at ground level, giving it an initial velocity of 24 m/s at 57 degrees above the horizontal. (a) what are the horizontal and verticla components of the ball;s initial velocity? (b) how high above the ground does the ball go? (c)

    asked by Sarah on June 7, 2009
  76. Physics

    A spring gun is made by compressing a spring in a tube and then latching the spring at the compressed position. A 4.97-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 5 cm, and it takes a force of 9.12 N

    asked by Sarah on December 11, 2011
  77. Science

    I have to make an experiment that supports the hypothesis that light travels in straight lines except at the point it enters a new medium and i was wondering if somebody could help me out by sending some links for ideas because ive been stuck for a while

    asked by John Cena on May 25, 2017
  78. math

    A search and rescue plane flying at an altitude of 1000 feet spots a ship in the ocean with an angle of depression of 7 degrees. The pilot follows his line of site and flies directly toward the boat for 0.7 miles. At this point his altitude is _____ feet.

    asked by Emma on May 25, 2013
  79. English

    I urgently need you to check these sentences. Thank you very much! 1) I'be been really disappointed to read that our German partner doesn't want your school to join in. Actually, we won't be probably part of the partnership, too. 2) Though English is

    asked by Henry2 on February 8, 2012
  80. university physics

    A platinum resistance thermometer has resistances of 200.0 ohms when placed in a 0 degrees Celsius ice bath and 253.8 ohms when immersed in a crucible contacting melting potassium. What is the melting point of potassium? Hint: First determine the

    asked by Ella on November 20, 2012
  81. calculus

    A 15-ft ladder rests against a vertical wall. If the top of the ladder slides down the wall at a rate of 0.33 ft/sec, how fast, in ft/sec, is the bottom of the ladder sliding away from the wall, at the instant when the bottom of the ladder is 9 ft from the

    asked by emma on April 13, 2015
  82. written communication

    I need help writing a positive message to the supervisor of someone who went above and beyond the call of duty to help me. We will be happy to critique you writing. Keep it short, to the point. Focus on what he did, the supervisor will make the decision

    asked by Tameka on March 17, 2007
  83. Algebra

    Write an equation in point-slope form to represent each situation. Assume a linear relationship between the given quantities. A temperature of 50 degrees Fahrenheit corresponds to 10 degrees Celcius. A temperature of 77degrees Fahrenheit corresponds to 25

    asked by Steve on February 5, 2017
  84. English

    Can you please tell me if the following sentences are correct? They all refer to Shakespeare's The Merchant of Venice. Thank you. 1) The man who marries Portia will be the one who chooses the correct casket. 2) Shylock is notorious for charging very high

    asked by Franco on September 6, 2010
  85. Math

    Can you please show me how choose the right answer and how to get the right answer. Which problem situation matches the equation below? 5x+5(x+20)=500 F. five people contributed to a fundraiser each give $20 more than the basic amount requested. In all,

    asked by AD on January 9, 2011
  86. Math

    A vertical tower is supported by guy wires anchored at a point on the ground. The longer wire is attached to the top of the tower and makes an angle of 53 with the ground. The shorter wire makes an angle of 21 with the ground. The shorter wire is 80 ft.

    asked by Melia on November 17, 2012
  87. physics

    Consider the electric field created by a very long charged line of negative linear charge density -2.50 nC/m. A small positive point charge of 12 mC moves from a distance of 7 cm to a distance of 18 cm. In mJ, how much work is done by the electric field?

    asked by Anonymous on February 17, 2011
  88. PHYSICS

    Three small spheres are placed at fixed points along the x-axis, whose positive direction points towards the right. Sphere A is at x = 23.0 cm, with a charge of -10.00 microCoulomb Sphere B is at x = 55.0 cm, with a charge of 2.00 microCoulomb Sphere C is

    asked by Jay on May 4, 2010
  89. MATH

    A man 6 feet tall walks along a walkway which is 30 feet from a the base of a lamp which is 126 feet tall. The man walks at a constant rate of 3 feet per second. How fast is the length of his shadow changing when he is 40 feet along the walkway past the

    asked by WILI on October 18, 2016
  90. 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
  91. algebra

    The distance you can see to the horizon is given by the formula d= the square root of 1.5 times h, where d is the distance in miles and h is the height in feet above the horizon line. Mt. Whitney is the highest point in the contiguous 48 states. Its

    asked by ammy on September 30, 2007
  92. Physics

    A place kicker must kick the football from a point 34.2 m from the goal and clear a bar 3.00 m above the ground. The ball leaves the ground with a speed of 20.0 m/s at an angle of 53.0 degrees above the horizontal. (a) By how much (m) does the ball clear

    asked by waqas on August 6, 2011
  93. ap chem

    how would each error affect the molar mass of antifreeze ( too high, too low, no effect. a) the thermometer used actually read 1.4 too high b) after measuring the 50 of distilled water to make an antifreeze solution you spilled some. c)you lost some of you

    asked by tori on January 24, 2011
  94. 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
  95. Calculus

    the curve: (x)(y^2)-(x^3)(y)=6 (dy/dx)=(3(x^2)y-(y^2))/(2xy-(x^3)) a) find all points on the curve whose x-coordinate is 1 and write an equation for the tangent line of each of these points b)find the x-coordinate of each point on the curve where the

    asked by Stephanie on November 2, 2008
  96. geometry

    ABCD IS A PARALLELOGRAM.P IS A POINT ON SIDE CD.AREA OF TRIANGLE ADP=48 SQUARE CENTIMETRE AND AREA OF TRIANGLE BCP=30 SQUARE CENTIMETRE FIND AREA OF PARALLELOGRAM ABCD

    asked by DEEPI on February 9, 2018
  97. Geography

    if you traveled south from South America, What is the next continent you would reach? Do you have a globe you can look at? If not, do you know which continent is located at the very southern-most point of the earth? if you traveled south from south

    asked by cindy on October 31, 2006
  98. eqilibrium /physics

    a rod 200cm long is pivoted at the 80cm from the one end 3kg body is attched at the one end 80cm away from the pivoted point how far from the other end 5kg body be attched to the rod

    asked by ashi on April 2, 2017
  99. algebra

    A ball is thrown straight up from a rooftop 9696 feet high. The formula below describes the​ ball's height above the​ ground, h, in​ feet, t seconds after it was thrown. The ball misses the rooftop on its way down. The graph of the formula is shown.

    asked by lisa on March 21, 2016
  100. p

    A newly planted tree is supported against the wind by a rope tied to a stake in the ground, as shown in the figure below. The force of the wind, though distributed over the tree, is equivalent to a single force F, as shown in the figure. Find the tension

    asked by JOHN on March 26, 2012

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