1. Physics

    Two blocks of weights 77.0 and 114.0 N are connected by as massless string and slide down an inclined plane making an angle of 45.0 deg. to the horizontal. The cofficient of kinetic friction between the lighter block and the plane is 0.15 and that between
  2. HELP! INTRO TO ECO

    Why do supply curves slope upward from left to right? Why don't we sometimes draw them sloping downward from left to right? Under what conditions would it be sensible to draw a supply curve that is horizontal(perfectly elastic)? Under what conditions would
  3. physics

    an engine block of mass 275kg rest on a plane which is inclined at 13 degrees to the horizontal.if the plane can be tilted to a maximum angle of 21 degrees before the engine block slide due to its weight.calculate the minimum force parallel to the plane
  4. math

    A, B, C are three points on a horizontal plane, where A is due south of B. The bearing of C from A is 060 degrees. At B, there is a vertical mast BD. The angles of elevation of its top D from A and C are 25 degrees and 20 degrees respectively. Find the
  5. math

    PQ is a vertical tower 95m high, the points R and S are on the same horizontal plane as Q, the angle of elevation of P from R is 35 if QS =155m and Q from RQS=48 1.Calculate the distance of QR 2.Calculate the distance of RS 3.Calculate the are of QRS
  6. math

    there are 4 possible scoring plays in NFL football game:touchdown=6 points;point after touchdown=1 point;feildgoal=3 points;and safty=2 points a. how many different ways could the team score 11 points? b. what final scores, between 1 and 30, are not
  7. English

    1. What are the means of public transportation in our country? 2. What does the color on the subway map mean? 3. Find and write down the sentences which are the reasons for the following sentences from the reading text. 4. Draw a line between the picture
  8. math

    Beth plays a video game in which she starts with 0 points. In round 1, she loses 3 1/2 points. In round 2, she wins 28 1/2 points, and in round 3 she loses another 3 1/2 points. What is her final.score?
  9. Math

    Exercise 30: Velocities have both direction and magnitude and thus are vectors. The magnitude of a velocity vector is called speed. Suppose that a wind is blowing from the direction N45◦W at a speed of 40 km/h. (This means that the direction from which
  10. pre cal

    An airplane is flying at a speed of 350 mi/h at an altitude of one mile. The plane passes directly above a radar station at time t  0. (a) Express the distance s (in miles) between the plane and the radar station as a function of the horizontal distance d
  11. Math

    Olivia tossed two fair two-sided coins. In a game, she earns 4 points if exactly one coin lands on heads and 6 points if both coins land on heads. If points are not earned for tails, what is the expected value of the points earned? A. 3 1/3 B. 3 1/2 *** C.
  12. precalc

    1. A plane is headed at 122 degrees with an air speed of 350mph in a wind that is blowing from 38 degrees. Find the ground speed of the plane and the speed of the wind if the actual flight was at 133 degrees. 2. A plane is heading at 20 degrees at 300mph
  13. physics

    A 6.0 kg mass moves along an inclined plane that makes an angle of 36 degrees with the horizontal. The mass is connected by a cable to a second mass of 10.0 kg, which is suspended over a frictionless, massless, pulley and is free to move. The second mass
  14. math

    At 3 pm a plane left the airport for LA traveling at 600 mph. At 3:30, another plane left the same airport on the same route traveling 650 mph. What time did the 2nd plane overtake the first. A. 5:15 pm B. 6:45 pm C. 6:50 pm D: 7:15 pm E: 9:30 pm Is D
  15. College Algebra

    A plane takes off from the ground at a 14-degree angle. After flying straight for 10,000 feet, what is the altitude of the plane?
  16. I really need help!

    Hi, I really need instructions. Can someone please tell me how to make a coordinate plane and a rectangle on the plane in Microsoft Excel 2013 please? I really I need an answer soon because this is due today!!!! Please someone help fast! Thank You :/
  17. Physics

    A Jet plane traveling 1800 km/h (500 m/s) pulls out of a dive by moving in an arc of radius 6.00 km. What is the plane’s acceleration in g’s?
  18. physics

    A plane heads south at 320 mph and the wind is west at 80 m/s. What is the final speed and angle degree of the plane?
  19. Geometry

    A plane takes off at an angle of 24 degrees with the ground. How high in feet is the plane after its flight path is 3 miles long
  20. Physics

    A jet plane traveling 1890 km/h (525 m/s ) pulls out of a dive by moving in an arc of radius 5.20 km What is the plane's acceleration in g's?
  21. math

    a plane is steering at S83degE at an air speed of 550 km/h. The wind is from N70degE at 85 km/h. Find the ground velocity of the plane to 1 d.p.
  22. Math

    A model plane flies 18ft per 2 seconds. What is the plane's speed in miles per hour? Round to the nearest tenths.
  23. calulus

    A plane flying at a constant rate of 200km/hr. What is the distance travelled by the plane 3mintues after it passes the observation point.
  24. physics

    a 10 kg weight is on an inclined plane. 10 ft long and 6 ft high. if there is no friction, what force parallel to the plane will prevent the body from slidin?
  25. gemetry

    name the intersection of plane QMW and plane RMW
  26. physics

    What is the difference between paper plane and genral plane?
  27. physics

    What is the difference between paper plane and genral plane?
  28. Calculus

    Consider the solid that lies above the square (in the xy-plane) R=[0,2]*[0,2], and below the elliptic paraboloid z=100−x^2−4y^2. (A) Estimate the volume by dividing R into 4 equal squares and choosing the sample points to lie in the lower left
  29. Physics

    1.A plane traveling at 300.0 km/h attempts to land on a 500 m runway. The plane’s engines and brakes accelerate uniformly at –5.0 m/s2. Will the plane be able to land safely? Show all your work. Include any equations used, the given and unknown. Show
  30. PHYSICS - PLEASE HELP

    A box of weight w=2.0 N accelerates down a rough plane that is inclined at an angle 30 degrees above the horizontal. The normal force acting on the box has a magnitude n= 1.7 N, the coefficient of kinetic friction between the box and the plane is .30, and
  31. Vector

    4. A plane has Cartetiar equation 4x - 3y + 6z - 12 =-- 0. a. Determine vector and p.iramqtric conations for this plane. b. Determine the equation of a line that lies in the plane.
  32. Math

    Claudia has test scores of 78, 88, 84, 92, 76, 98. If she wants to end up with a ''B'' average, what does she need to score on her next test? Joe made 15 points in a basketball game, 3 points are given for a long shot, 2 points given for a field goal, and
  33. Math

    Using the systematic list, solve. Dead eye, Joe made 15 points in the basketball game. 3 points given for a long shot, 2 points given for a field goal, and 1 point is given for a free throw. How many ways can dead eye Joe score 15 points. I came up with
  34. Geometry

    For each property listed from plane Euclidean geometry, write a corresponding statement for non-Euclidean spherical geometry. A line segment is the shortest path between two points Hey guys I want to know how to do this and can you help me with this
  35. Dover

    a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due
  36. mlit

    a plane at a height of 5000m is travelling ata constant speed of 300m.s. A heat seeking missile is fired at the plane when it is 5000m due east of an airbase. if the missile's speed is 350m.s, will the missile hit the plane before it reaches 9000m due
  37. Chemistry

    Please help! Complete equation by drawing structural formula(e) of the product(s). CH2=CH-CH-OH + CH3-CH-CH2-C =O CH3 CH3 -OH You will have to imagine the bonds as I can't draw vertical or diagonal lines! There are too many possibilities to imagine what
  38. math

    Four students at a computer fair competed against each other in a space-travel game. Chris scored 2/3 as many points as the winner Pat. Rich scored 1/2 as many points as Chris. Tome scored 100 points, which was 90 points less than Rich's score. How many
  39. Honors Trig.

    A plane is flying at a speed and direction of 550 mph, 25 degrees north of west. There is a wind of 28 mph, at an angle of 19 degrees south of the east direction. How fast is the plane actually flying? What direction is the plane traveling?
  40. physics

    Two blocks, of weights 2.8 N and 5.5 N, are connected by a massless string and slide down a 47° inclined plane. The coefficient of kinetic friction between the lighter block and the plane is 0.087; that between the heavier block and the plane is 0.39.
  41. Physics

    3 There are two charges +Q and –Q/2 that locate at two positions with a separation of d as shown in Fig. 1. We may put +Q at the origin of the x-axis to facilitate the calculation. (a) Find the electric field for +Q and –Q/2 at the position P. (5
  42. physics

    An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?
  43. Physics - HELP

    An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground?
  44. Physics

    A rat with mass 0.5 kg is sliding down an inclined plane. The plane is at an angle of 34⁰ with respect to the ground, and the coefficient of friction between the rat and the plane is 0.2. Simultaneously, a cat is giving the rat a push UP the hill,
  45. Math

    given a jar contains four marbles, each a different color: red, blue, green, and yellow. If you draw two marbles from the jar, one after another, replacing the first before drawing the second,what is the probability of getting a red marble on the first
  46. Calculus

    Which vector is not collinear with vector a=[6,-4]? A: [3, -2] B: [-6, -4] C: [-6, 4] D: [-9, 6]
  47. physics

    a plane is flying southwest at 155 mi/h and encounters a wind from the west at 45.0 mi/h. what is the plane velocity in respect to the ground in standard position?
  48. physics

    a 1-kilogram block slides down a frictionless inclined plane with an angle of 35 degrees and 1.0 meters high. what is its velocity at the bottom of the plane?
  49. Physics

    A plane flies at an airspeed of 242 km/h. A wind is blowing at 72 km/h toward the direction 60° east of north. What is the speed of the plane relative to the ground?
  50. Math (Help please!)

    The points plotted on the coordinate plane below are three vertices of a rectangle. ht tp : //imgur dotcom /a/eix1I What are the coordinates of the fourth vertex of the rectangle? (Remove the word "Dot", and put a "." in it's place to access the link, and
  51. Physics

    Spring on Incline The block in the figure is initially at rest on an inclined plane at the equilibrium position that it would have if there were no friction between the block and the plane. How much work is required to move the block 25 cm down the plane
  52. Advanced Maths (Vectors) AQA Level

    Triangle ABC with D, E and F the midpoints of BC, AC, and AB. G is the midpoint of AD such that the ratio AG:GD =2:1, VECtors AB =p and BC =q Prove that B, G and E are collinear. prove the same results for point C, G and F
  53. Advanced Maths (Vectors) AQA Level

    Triangle ABC with D, E and F the midpoints of BC, AC, and AB. G is the midpoint of AD such that the ratio AG:GD =2:1, VECtors AB =p and BC =q Prove that B, G and E are collinear. prove the same results for point C, G and G
  54. math-calculus

    a plane flew from red deer to winnipeg, flying distance of 1260 km. on the return journey, due to a strong head wind, the plane travelled 1200 km in the same time it took to complete the outward journey. on the outward journey, the plane be able to
  55. Pre cal

    1. An airplane flies 200 km on course 110 degrees from point A to point B. At point B the pilot changes course to 37 degrees. The plane then flies 100 km to point C. Find the magnitude of the net displacement from A to C. 2. A plane is flying on a bearing
  56. 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
  57. calculus

    Two commercial airplanes are flying at an altitude of 40,000 ft along straight-line courses that intersect at right angles. Plane A is approaching the intersection point at a speed of 429 knots (nautical miles per hour; a nautical mile is 2000 yd or 6000
  58. 8th grade Math

    Khalid uses Penelope’s bag of letter tiles to create a different game in which he tries to randomly draw a set of five tiles with consecutive letters. If Khalid plans to draw five tiles from the bag, without looking and without replacing any tiles, what
  59. Math

    Martin has scored an average of 12 points per game this season Game 1 he scored 8 points, game 2 he scored 11 points, game 3 he scored 12 points, and game 4 he scored 16 points. Use numbers from the box (2,3,4,5,8,11,12,13,16,n) to write an equation that
  60. Math/Corrdinate Plane

    I need help with a worksheet that has a line going down with a y with positive numbers at the top and negative numbers at the bottom and the it has a line going across with an x with negative numbers on left and positive on right. It has a tic tac toe
  61. physics

    describe the force board experiment to show how to obtain the resultant of two non-parallel coplanar force acting at a point.four forces of magnitude 10N, 5N, 4N, AND 6N acts on an oblect in the direction north. West, east and south respectively.find the
  62. physics

    An 3730 kg airplane has a center of mass located 32 m from the front of the plane. A 123 kg man sits 25 m from the front of the plane. Where should a 76 kg woman sit so that the center of mass of the loaded plane is the same as the empty airplane? (m from
  63. physics

    A jet plane is flying with a constant speed along a straight line, at an angle of 30.0° above the horizontal, as shown in part (a) of the drawing. The plane has a weight of magnitude 87500 N, and its engines provide a forward thrust . In addition, the
  64. physics

    A block weighing 11.05 N rests on a 28 degree incline. (a) Find the normal force exerted by the plane on the block out of the plane (b) Find the frictional force exerted by the plane on the block up the slope. c) Find the magnitude of the total force
  65. physics

    Consider two frictionless inclined planes with the same vertical height. Plane 1 makes an angle of 25.0 degree with the horizontal, and plane 2 makes an angle of 55.0 degree with the horizontal. Mass m_1 is placed at the top of plane 1, and mass m_2 is
  66. math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores
  67. math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores
  68. physics

    A 210-N box is placed on an inclined plane that makes a 40.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  69. Physics

    A 60 kg box is on a 80 m long plane which is inclined at 30 degrees, the coefficient of friction is 0.25. How much force is needed to move it up a plane A.) at a constant velocity and B.) with an acceleration of 2 m/s^2
  70. physics

    A 175-N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  71. Physics

    A 180 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  72. Physics

    A plane is headed east with an air speed of 294.0 m/s. The wind blows southeast at 42.0 m/s. Find the velocity of the plane relative to the earth.
  73. science

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs
  74. physics

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs
  75. Physics

    A 200-N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  76. Physics

    A jet plane lands with a velocity of 100 m/s and can accelerate at a maximum rate of -5.0 m/s2 as it come to rest. Can this plane land at an airport where the runway is 0.80 km long?
  77. physics

    a plane is headed north with a velocity of 400km/hr and west wind blowing at 70km/hr.find the distance of the plane from its base in 2hrs
  78. Physics

    A 175-N box is placed on an inclined plane that makes a 20.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  79. physics

    A plane flies at 150m/s at 35 degrees east of north. It encounters a wind from the west blowing 26 m/s. What is the true course of the plane? (speed and direction)
  80. Physics

    A 170-N box is placed on an inclined plane that makes a 35.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  81. Physics - Vectors/Forces

    A 10 kg weight is on an inclined plane 10 ft long and 6 ft high. If there is no friction, what force parallel to the plane will prevent the body from sliding?
  82. physics

    A 155 N box is placed on an inclined plane that makes a 30.0° angle with the horizontal. Find the component of the weight force parallel to the plane's surface.
  83. Physics

    A Plane flies north at 215 km/h. A wind from the east blows at 69km/h. What is the plane's new velocity with respect to the ground in standard position
  84. physics

    An Air plane flys from san fransico to new-york about 4800km at speed of 300m/s how much time does trip take as measured by observer in the plane?
  85. physics

    A high-voltage line of length 175 m is carrying a current of 105 A at a point on the earth where its magnetic field is 5 * 10^(-5) T and points North,34 degree from the vertical axis. A) what is the magnitude and direction of the force on the wire if the
  86. Physics

    A high-voltage line of length 175 m is carrying a current of 105 A at a point on the earth where its magnetic field is 5 * 10^(-5) T and points North,34 degree from the vertical axis. A) what is the magnitude and direction of the force on the wire if the
  87. History

    so i have to make a picture based on this Lesson where learning about New France an from the textbook there's this sentence i`m supposed to draw about but i have no clue how i can draw it its --> "reported to the king on colonial activities and ensured
  88. trig

    A plane is flying 12,000 feet horizontally from a tall, vertical cliff. The angle of elevation from the plane to the top of the cliff is 45degrees, while the angle of depression from the plane to a point on the cliff at elevation 8000 feet is 14degrees.
  89. finite math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores
  90. math

    In the middle of the page, draw two circles an inch apart. Then draw a slight arch going up from the right edge of the left circle to the left edge of the right circle. Then draw a diagonal line out from the left edge of the left circle. This line should
  91. Math

    Have you ever been on an airplane and heard the pilot say that the plane would be a little late because it would be flying into a strong headwind or that even though the plane was taking off a bit late, you would be making up time because you would be
  92. physics

    A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235 m below. The horizontal velocity of the plane is 250 km/h (69.4 m/s). Rescue plane releases the supplies a horizontal distance of 425 m in advance of the mountain
  93. Precalculus

    This figure shows concentric circles of radii 3 and 5, respectively, centered at the origin of an xy-coordinate system. A ray from the center at an angle of t degrees to the x-axis cuts the two circles at points A and B. From A, a vertical line is drawn;
  94. Algebra

    Flying with the wind a plane went 162 mph. Flying into the same wind the plane only went 82mph. Find the speed of the plane in still air and the speed of the wind.
  95. Algebra

    With a tail wind, a light plane can fly 720 km in 2h. Going against the wind, the plane can fly the same distance in 3 h. What are the wind speed and the air speed of the plane?
  96. chemistry

    Draw the three dimensional structure of hydrazine (H2N-NH2) and answer the following questions about what you have drawn. How would you describe the geometric arrangement of electron domains around each nitrogen? linear trigonal planar tetrahedral trigonal
  97. Physics ( oscillations and waves)

    two collinear harmonic oscillations are X1= 8 sin( 100pi *t) and X2= 12 sin(96 pi *t) are superposed. calculate the values of time when the amplitude of the resultant oscillation will be maximum and minimum
  98. math

    a plane is flying horizontally at a height of 10000m above a level stretch of ground at a constant speed of 240 km/h. A man on the ground observes the angle of elevation of the plane (which is flying on a course directly towards him) to be 35 degrees. how
  99. A plane flies horizontally at an altitude of 5 km

    A plane flies horizontally at an altitude of 5 km and passes directly over a tracking telescope on the ground. When the angle of elevation is π/3, this angle is decreasing at a rate of π/4 rad/min. How fast is the plane traveling at that time?
  100. Physics

    i saw this question from physics book, can someone please help me solve this.. thank you.. A man pulls a 500 Newton block up a plane inclined 300 with the horizontal with a force of 300 Newton parallel to the plane. What net force tends to pull the block