1. Big Data

    Suppose we want to assign points to whichever of the points (0,0) or (100,40) is nearer. Depending on whether we use the L1 or L2 norm, a point (x,y) could be clustered with a different one of these two points. For this problem, you should work out the
  2. physics

    The initial velocity of a 2.36 kg block sliding down a frictionless inclined plane is found to be 1.46 m/s. Then 1.07 s later, it has a velocity of 4.46 m/s. What is the angle of the plane with respect to the horizontal? I did this: a=(4.46-1.46)/1.07=2.80
  3. physics help

    Two 12.0 kg boxes are connected by a massless string that passes over a massless frictionless pulley as shown above. The boxes remain at rest, with the one on the right hanging vertically and the one on the left d = 2.9 m from the bottom of an inclined
  4. physics

    While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each
  5. physics

    While taking a plane flight to a meeting, a physicist decides to do a mental calculation of how much fuel the plane would consume in the absence of friction, assuming its engines have an efficiency of 22.0% and the mass of the plane is 200,000 kg. Each
  6. statistics

    A random sample of n = 4 scores is selected from a population with ƒÝ = 80 and ƒã = 20. On average, how much difference would you expect between the sample mean and the population mean? a. 0 points (the sample mean should be the same as the population
  7. Math

    A commuter plane flies from City A to City B, a distance of 90 mi due north. Due to bad weather, the plane is redirected at take-off to a heading N 60° W (60° west of north). After flying 57 mi, the plane is directed to turn northeast and fly directly
  8. Chemistry

    Draw Bohr diagrams of the following: A) O and O2- I know how to draw the regular O bohr diagram. 2 electrons in the first shell, and 6 in the outer one, but I don't get how to draw a 02- diagram. Do I just take away 2 electrons from the outer shell?
  9. Physics

    I have a question An airplane is flying at 120km/h due west moves into a region where the wind is blowing at 40km/h. If the planes original velocity is Vplane, what is the expression for the plane's resulting velocity in terms of V plane? Answers are given
  10. Physics

    I have a question An airplane is flying at 120km/h due west moves into a region where the wind is blowing at 40km/h. If the planes original velocity is Vplane, what is the expression for the plane's resulting velocity in terms of V plane? Answers are given
  11. Algebra

    Let "n" be a positive integer. How many points (x,y) in the coordinate plane are there such that x and y are integers and 0<y<x<n? Algebra - Scott yesterday at 9:05pm (n - 1)(n - 2) Algebra - Laurie yesterday at 9:55pm Scott, does mean that there
  12. geometry

    A plane is heading west at 200 mph. The wind is blowing S30°W at 25 mph. 1. What is the ground speed of the plane? 2. When you solve the triangle, what is the smallest angle? 3. What is the largest angle of the triangle? 4. What is the remaining angle? 5.
  13. math

    Find all points (x,y) that are 13 units away from the point (2,7) and that lie on the line x - 2y = 10. Give your answer as a list of points separated by semicolons, with the points ordered such that their x-coordinates are in increasing order. So "(1,-3);
  14. College Algebra

    What is the answer to: The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X - axis (horizontal)= years starting from 0= 2006 and increasing by 0.5 years X - axis (vertical)= price in $ amounts from 24,000 to 240,000 a). List
  15. Calculus

    The area bounded between the line y=x+4 and the quadratic function y=(x^2)-2x. Hint: Draw the region and find the intersection of the two graphs. Add and subtract areas until the appropriate area is found. I found the intersection points as (-1,3) and
  16. Regression

    Hi, Can anyone help me with a regression problem, I am doing energy species hypothesis ... I have calculated data and from f value of 22.39 have found the sq root of 4.73. 4.73 is significant at 1% c = f (x) = 0x + 2.2 ( not sure what this output means) I
  17. Geomerty

    In order to measure the distance AB across the meteorite crater, a surveyor at S locates points A, B, C, and D. What is AB to the nearest meter? nearest kilometer? Draw triangle BSA (B is the bottom left corner, S is the top, and A is the bottom right
  18. Pre-Algebra

    Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs.
  19. Pre-Algebra

    Question is: What is the algebraic equation to determine when they will meet? For the following information, I understand 5(x+y) = 3000 for 1st plane & 10(x-y) = 3000 for 2nd plane. When an airplane flies with a given wind, it can travel 3000 km in 5hrs.
  20. Sociology

    Societies norms, values and beliefs are enforced through internalization and sanctions (Points : 2) true or false An example of a positive informal sanction is when a parent gives a student praise for doing well on a test. (Points : 2) true or false Emile
  21. Physics

    As preparation for this problem, review Conceptual Example 10. The drawing shows two planes each about to drop an empty fuel tank. At the moment of release each plane has the same speed of 140 m/s, and each tank is at the same height of 4.00 km above the
  22. Math

    Hundred.... A plane flew an estimated distance of 800 kilometers. The greatest distance the plane could have flown is..... Kilometres
  23. PHYSICS

    A block is pushed up a frictionless inclinded plane with initial speed V0 =5.50 m/s. The angle of incline is 0= 23.0º. How far up the plane does the block go? How long does it take to get there?
  24. Math

    Math question: My plane arrived in Chicago 45 minutes later from Detroit. How fast was my plane which traveled at about 20000 altitude?
  25. math

    A sphere has a radius of 12 inches. A horizontal plane passes through the center of the sphere. A)Describe the cross section formed by the plane and the sphere. B)Describe the cross sections formed as the plane intersects the interior of the sphere but
  26. math

    a small plane flying into the wind takes 3 hrs 20 min to complete a flight of 960 km. Flying with the wind the same plane takes 2 h 30 min to make the trip.what is the speed of the plane? what is the speed of the wind?
  27. Managerial Economics

    I am trying to understand how to variate between MC and MB using the theory of optimization the circumstance which a waste site could be made too clean. Note: Good answers are dispassionate and employ economic analysis. Draw a graph, put cost/benefits on
  28. Physics

    A plane with a velocity of 111. 9 meters per second at a maximum rate of 6.8 m/s^2 the plane touches the runaway what's the minimum time before it can come to rest? A=6.8m/s^2 V=111.9m/s t=?
  29. trig

    A plane is flying due south at a speed of 192 mph. a wind is blowing in at 53 degrees at 13 mph. what is the bearing of the plane?
  30. physics

    The initial velocity of a 1.55 kg block sliding down a frictionless inclined plane is found to be 1.27 m/s. Then 1.07 s later, it has a velocity of 5.37 m/s. What is the angle of the plane with respect to the horizontal?
  31. physics

    What's the solution of a body of weight 100N resting on a plane which is inclined at 30° to the horizontal with the components of the weight parallel and perpendicular to the plane?
  32. physics

    The velocity of a 1.5 kg block sliding down a frictionless inclined plane is found to be 1.13 m/s. 1.2 s later, it has a velocity of 4.37 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?
  33. physics

    a plane flying due north at 100 m/s is blown by a. 50 m/s strong wind due east. b. what is the plane's resultant velocity?
  34. math

    a plane flies northwards for 430km.if the plane flies eastward for 380km.how far is it from its starting point(ignore its height above the ground)
  35. Geometry

    A plane is heading west at 200 mph. The wind is blowing S30°W at 25 mph. 1. what is the ground speed of the plane? I could not figure this one out. Please help?
  36. math

    Brandon is making a model plane at a 1:36 scale. If the length of the actual plane is 60 feet, how many inches long should he make his model?
  37. Math

    A jet plane traveled at a constant speed and flew 5460 miles in 12 hours. How many miles did the plane fly in one hour?
  38. physics

    ;if a hoop A is made of iron & hoop B of wood are pushed at same time down to an inclined plane. find velocity of both if height of plane is 1m?
  39. physics

    The initial velocity of a 2.56 kg block sliding down a frictionless inclined plane is found to be 1.13 m/s. Then 1.08 s later, it has a velocity of 3.99 m/s.What is the angle of the plane with respect to the horizontal?
  40. physics

    The velocity of a 2.5 kg block sliding down a frictionless inclined plane is found to be 1.58 m/s. 1.40 s later, it has a velocity of 7.32 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?
  41. Physics

    The velocity of a 2.3 kg block sliding down a frictionless inclined plane is found to be 1.58 m/s. 1.1 s later, it has a velocity of 5.65 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?
  42. phy

    The velocity of a 2.5 kg block sliding down a frictionless inclined plane is found to be 1.25 m/s. 1.00 s later, it has a velocity of 4.15 m/s. What is the angle of the plane with respect to the horizontal (in degrees)?
  43. math hw

    42. Twenty minutes after a plane leaves the airport, it is reported to be 160 miles away. What average speed of the plane in the miles per hour?
  44. physics

    A missile is released from a fighter plane traveling horizontally at an altitude of 10000 ft. if the target was hit at 2.09 miles, in mi/h, was the plane traveling?
  45. physics

    a force of 625 N is used to move an object with 1000N resistance up inclined plane of 2.0 m.What is the length of the inclined plane
  46. physics

    How do i find the length of a projection of a vecor A=3x+y+2z on the xy plane? and how do i find the unit vecotr in the xy plane that is perpendiculer to vector A?
  47. Geometry/Trig

    A plane is flying and show an air speed of 130 mi/h. However, there is a 20 mi/hr crosswind. What is the resulting speed of the plane.
  48. physics

    How do i find the length of a projection of a vecor A=3x+y+2z on the xy plane? and how do i find the unit vecotr in the xy plane that is perpendiculer to vector A?
  49. science

    a 50 kg block is placed on an inclined plane with an angle of 30. then find the components of the weight (1)perpendicular (2)parallel to the inclined plane.
  50. physics

    a plane on a runway accelerates from rest for 6.8 seconds. If the runway is 450 meters long, what was the plane's acceleration?
  51. Physics

    I want to lift a 90kg box using an inclined plane, but I only have 30kg of strength. What does the length and height of the inclined plane need to be?
  52. math

    Draw a square, triangle, rhombus, and pentagon. Identify the types of line segments that make each shape (parallel, perpendicular, intersecting). List the total number of angles in each shape. I do not get anything besides the part when I need to draw
  53. question

    do the experts on here draw graphs? Yes, we CAN draw graphs(manually) but not on the computer.
  54. 4th grade

    DRAW AND LABEL RAY SL. DRAW AND LABEL POINT R ON IT
  55. physics

    An enemy plane is flying horizontally at an altitude of 2.0km with a speed of 340m/s.An army man with anti-craft gun on the ground sight the enemy with a muzzle speed at 60m/s .when the enemy plane is directly overhead.find a)at what angle from the
  56. Physics Urgent please help

    A physical pendulum consists of a body of mass contained in the xy-plane. The moment of inertia of the object about an axis perpendicular to the plane and passing through the object's center of mass is I_cm . The object oscillates in the xy-plane about the
  57. physics

    You spot a plane that is 1.63 km north, 2.3 km east, and at an altitude 5.2 km above your position. 1) At what angle from due north (in the horizontal plane) are you looking? ( ) °E of N 2) Determine the plane's position vector (from your location) in
  58. physics

    An electron of charge -e and a long straight wire carrying a current I to the right are both in the plane of the page, as shown above. In the position shown, the electron is a distance R from the wire and is moving directly toward it with speed v. What is
  59. Precalculus

    1.A plane takes off at an angle of 6 degrees traveling at the rate of 200 feet/second. If it continues on this flight apth at the same speed, how many minutes will it take to reach a n altitude of 8000 feet? 2. A plane takes off at an angle of 5 degrees.
  60. physics

    a 25.0kg box is released from rest on a rough inclined plane tilted at an angle of 33.5 degrees to the horizontal. the coefficient of kinetic friction between the box and the inclined plane is 0.200. determine the force of kinetic friction acting on the
  61. English

    Posted by rfvv on Monday, September 26, 2011 at 6:24am. 1. This is Jenny Kim from BNN, reporting from the ORBIS plane. 2. This is Jenny Kim from BNN, and it is reporting from the ORBIS plane. 3. This is Jenny Kim from BNN, and she is reporting from the
  62. geometry

    A plane is flying at an altitude of 12,000 m. From the pilot, the angle of depression to the airport tower is 32°. How far is the tower from a point directly beneath the plane?
  63. math

    there are two planes. they both leave the airport at 1pm. one plane travels north at 150mph and the other plane travels west at 200mph. how many miles will they be apart at 3pm?
  64. physics

    A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?
  65. PHYSICS

    A BODY OF 50N Rest On A Smooth Plane Incline At 30 Degree To The Horizontal Which Force Applied Parallel To The Plane Will Keep The Body In Equilibrium
  66. Math! Please check!

    Name the intersection of planes ADE and BEA. A- plane BED B- plane ABC C- line BD D- line AE My choice is D. (Sorry that I could not post an image)
  67. math

    A plane flew due south from a point A, 60°north and 45°east to a point B.The distance covered by the plane was 8000km. Determine the position of B.
  68. physics

    A block is projected up a frictionless inclined plane with initial speed v0 = 1.92 m/s. The angle of incline is è = 12.2°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?
  69. physics

    A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?
  70. Physics

    A block of mass 4 kg slides down a frictionless inclined plane angled 30 degrees above the horizontal. The force accelerating the block down the plane is thus: a. zero, since there is no friction b. 9.8N c. 19.6N d. 33.9N e. 39.2N
  71. Physics

    An airplane touches down at a speed of 55.0 m/s on a runway that is 600 m long. The plane can decelerate at a uniform rate of 2.50 m/s^2. Will the plane be able to stop before the end of the runway?
  72. PHYSICSS

    A block is projected up a frictionless inclined plane with initial speed v1 = 3.40 m/s. The angle of incline is è = 31.1°. (a) How far up the plane does it go?(m) (b) How long does it take to get there? (s) (c) What is its speed when it gets back to the
  73. physics

    A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?
  74. physics

    A pilot wants to fly west (ie., the resultant is west). If the plane has an airspeed of 9.5 m/s, and there is a 25m/s wind blowing north, in what direction must she head the plane?
  75. Physics

    The initial velocity of a 2.04 kg block sliding down a frictionless inclined plane is found to be 1.24 m/s. Then 1.23 s later, it has a velocity of 6.70 m/s. What is the angle of the plane with respect to the horizontal? im lost.....
  76. Physics

    A plane flies due north at 225 km/h. A wind carries it due east at 55 km/h. What are the magnitude and direction of the plane's resultant velocity?
  77. physics

    A block is projected up a frictionless inclined plane with initial speed v0 = 8.42 m/s. The angle of incline is è = 58.4°. (a) How far up the plane does it go? (b) How long does it take to get there? (c) What is its speed when it gets back to the bottom?
  78. Triangles

    How will you find the distance of a star from Sun, given that the angle at which it is viewed from the two solstices of Earth(i.e winter and summer) are alpha and beta respectively, and the distance between the points of the solstices is 150 million km.
  79. stat

    A college basketball player scored the following points in the 37 games he played his senior year: Stem-and-leaf of points n = 37 Leaf Unit = 1.0 1|33 1|66 2|1233444 2|5555666789 3|0222233444 3|89 4|23 4|7 5|2 The first quartile of his point totals is
  80. Math

    1) A plane is located at C on the diagram. There are two towers located at A and B. The distance between the towers is 7,600 feet, and the angles of elevation are given. a) find BC, the distance from Tower 2 to the plane, to the nearest foot. b) find CD,
  81. Physics

    You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.
  82. Calc Math

    A plane is heading on a bearing of 200° with an air speed of 400 km/h when it is blown off course by a wind of 100 km/h from the northeast. Determine the resultant ground velocity of the plane. What was your solution to answering this problem?
  83. Physics

    You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.
  84. Physics

    You place a box weighing 251.6 N on an in- clined plane that makes a 38.4◦ angle with the horizontal. Compute the component of the gravita- tional force acting down the inclined plane. Answer in units of N.
  85. electromagnets

    A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque
  86. magentism

    6.A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? b. What is the magnitude of the
  87. magnetism

    A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque
  88. Physics

    a 25 kg box is released from rest on a rough inclined plane tilted at an angle of 33.5 degrees to the horizontal. The coefficient of kinetic friction between the box and the inclined plane is 0.200. a. determine the force of kinetic friction acting on the
  89. Calculus

    An airplane is heading at a bearing of N23°E at a speed of 700 km/hr, but there is a wind blowing from the west at 60 km/hr. If the plane does not make any correction, what will be the bearing of the plane? What is its speed relative to the ground (ground
  90. trig

    a plane is 50000 ft in the air and 30000 ft from an airport find the angle of depression from the plane to the airport
  91. Math

    A plane flew an estimated distance of 800 kilometers. The greatest distance the plane could have flown is
  92. Calculus 3

    Find the equation of the plane that passes through (1,0,0) and is perpendicular to the line r=<1,0,2>+t<1,0,1>. The vector equation of a plane is n*(r-rsub0)=0. Thank you so much for your help!
  93. Math

    What cross sections might you see when a plane intersects a cone that you would not see when a plane intersects a pyramid or a prism? Explain.
  94. Math I Have no idea PlEASE help me

    Wind can affect the speed of an airplane. Suppose a plane is flying round-trip from New York City to San Francisco.The plane has a cruising speed of 300 miles per hour.The wind is blowing from west to east at 30 miles per hour. When the plane flies into
  95. English

    1. Draw a star shape on the A4 paper. 2. Draw a star on a piece of A4 paper. 3. Draw a star shape on A4 paper. ===================== Which expression is grammatical?
  96. electricity and magnetism

    A current of 20 mA flows in a single circular loop with a radius of 2 meters. A uniform magnetic field of 1.2 T points parallel to the plane of the loop. What is the magnitude of the magnetic moment of the loop in A-m^2? What is the magnitude of the torque
  97. Maths

    An irregular octagon R has vertices 6, 2), (2, 6), (−1, 5), (−5, 1), (−6, −2), (−2, −6), (1, −5) and (5, −1). Using standard notation, write down the elements of the symmetry group S(R) of R, giving a brief
  98. Physics

    The drawing shows a jet engine suspended beneath the wing of an airplane. The weight W of the engine is 12000 N and acts as shown in the drawing. In flight the engine produces a thrust T of 54200 N that is parallel to the ground. The rotational axis in the
  99. Statistics

    The points of 100 children in a test are normally distributed with mean of 25 points and a standard deviation of 10 points. (a)Given that the passing mark is 20, estimate the number of children who passed the test. (b)If 5.59% of the children obtain a
  100. algebra

    In a college, some courses contribute more towards an overall GPA than other courses. For example, a science class is worth 4 points; mathematics is worth 3 points; history is worth 2 points; and English is worth 3 points. The values of the grade letters