1. Chemistry

    Describe the subatomic structure of the nucleus, including the structure of each nucleon. Draw a picture. Describe the forces that hold the nucleus together and draw them on your diagram. Explain how beta emission works.

    asked by Paige on May 24, 2013
  2. Physics

    you slide a 325-N trunk up a 20.0 degree incline plane with a constant velocity by exerting a force of 211 N parallel to the incline plane a)what is the component of the trunk's weight parallel to the plane ? b)what is the sum of your applied force

    asked by Amanda on October 19, 2009
  3. Economics

    Upper Slobbovians smoke 10 million cigarettes per year, so do Lower Slobbovians. To discourage smoking, each country imposes an excise tax of 50 cents per pack. As a result, the price of cigarettes rises by 35 cents in upper Slobbovia, but only by 15 cents

    asked by Cristina on September 21, 2006
  4. Math

    Draw an array for 12x7 (You don;t have to draw all the boxes inside, just the shape and the dimensions.) How would you break up this array into two smaller arrays? Show your two smaller arrays an your drawing. Then fill in the equation and solve the

    asked by Kenneth on January 29, 2010
  5. Math

    Draw an array for 12x7 (You don;t have to draw all the boxes inside, just the shape and the dimensions.) How would you break up this array into two smaller arrays? Show your two smaller arrays an your drawing. Then fill in the equation and solve the

    asked by Kenneth on January 29, 2010
  6. College Math

    For questions 1-2, apply the quadratic formula to find the roots of the given function, and then graph the function. 1. f(x) = x2 + 4 (6 points) g(x) = x2 - x – 12 For questions 3-4, factor the quadratic expression completely, and find the roots of the

    asked by jennie on December 12, 2010
  7. statistics

    Assuming a standard deck of 52 playing cards. Calculate the the probability. Draw one card thatis a queen and a heart. is it 4/52 + 13/52 - 1/52 = 16/52 or 4/13 is this right?? Draw one card that is a queen or a heart 4/52 +13/52 - 2/52 =15/52 not sure if

    asked by sonney32 on April 22, 2011
  8. Physics - Vectors

    A jet travels from Vancouver to Calgary for 1000 km, then turns [N] and travels another 200km toward Edmonton. Draw a scale diagram. Find the displacement of the jet from Vancouver. I just don't get how to draw this out.

    asked by -Untamed- on September 22, 2011
  9. geometry

    Ray Hf bisects with angle Ehg.. Which conclusion is not valid a. E,F and G are coplanar b. angle EHF is congruent with angle FHG c. Line Eh is congruent to line HG d. m/Ehf is congruent to m/FHG

    asked by Jocelyn on October 9, 2011
  10. Social Studiesss

    11. What resources led to the appearance of the Industrial Revolution in New England? (5 points) 12. During the early 1800s, the United States tried to make peace with other countries in order to grow and develop. Give an example of one of these peace

    asked by Nicole M on February 7, 2014
  11. Social Studies

    11. What resources led to the appearance of the Industrial Revolution in New England? (5 points) 12. During the early 1800s, the United States tried to make peace with other countries in order to grow and develop. Give an example of one of these peace

    asked by Nicole M on February 7, 2014
  12. physics

    To take off from the ground, an airplane must reach a sufficiently high speed. The velocity required for the takeoff, the takeoff velocity, depends on several factors, including the weight of the aircraft and the wind velocity. Part A: A plane accelerates

    asked by JD on September 11, 2013
  13. Physical sciences

    A 330kg crate slides down a 30 degree inclined plane. The total length of the plane is 3,6m. The crate is kept from accelerating by a man who is pushing back on it parallel to the incline. Calculate the force exerted by the man on the piano

    asked by Nicolle on April 9, 2014
  14. SCIENCE

    A block of mass m having charge q is sliding down an inclined plane of inclination and coefficient of friction.When uniform electric field E is applied parallel to the base of inclined plane,the block slides down with constant velocity.The value of E is?

    asked by GELSEY on April 28, 2017
  15. physics work and newton

    A person of mass 84kg is at rest at the bottom of an inclined plane that makes an angle of 30 degrees with the horizontal. he walks up the inclined plane through a certain distance and has a speed of 0.40 m/s. How much net work has been accomplished in

    asked by naf on November 5, 2012
  16. physics

    Find the velocity of (a) a cylinder and (b) a ring at the bottom of an inclined plane that is 1.55 m high. The cylinder and ring start from rest and roll down the plane. Hint: Carry out the calculation including the unknown parameters, and they may cancel

    asked by Demis on October 29, 2012
  17. Physics

    a pilot must fly a destination 520 km away in a direction of N30 degree E. The air speed of the plane is 320Km and the wind speed is 85 km/h E20 degree Suth. Find the heading of the plane and the time for the trop.

    asked by Jessica on October 4, 2009
  18. pysics

    Find the velocity of (a) a cylinder and (b) a ring at the bottom of an inclined plane that is 1.55 m high. The cylinder and ring start from rest and roll down the plane. Hint: Carry out the calculation including the unknown parameters, and they may cancel

    asked by Demis on October 29, 2012
  19. physics

    an air plane takes a circuitous route. the journey is split into 4 sections. d1= 6000km (30.0 n of e) d2= 5600km (NW) d3= 4500km (35.0 S of W) d4= 7000km (12.0 W of S) - Find the resultant displacement of the air plane what do i do, and what is the coreect

    asked by hi on January 14, 2008
  20. calculus

    An airplane's velocity with respect to the air is 580 miles per hour, and its bearing is 332 degrees. The wind, at the altitude of the plane, is from the SW and has a velocity of 60 mph. What is the true direction of the plane, and what is the speed with

    asked by ASH on May 24, 2012
  21. Trig

    Plane leaves airport with heading of 110 degrees at 300 mph, the wing out of the southwest is 42 mph. locate the plane after 4 hours? find the distance back to airport and angle from due east?

    asked by Stone on November 15, 2013
  22. solid mechanics

    At a point in a strained material the principal stresses are 60MPa and 40Mpa. Find the position of the plane across which the resultant stress is most inclined to the normal and determine the value of this stress. (Ans:50degree45' with the major principal

    asked by Anand on February 16, 2014
  23. Algebra

    If a plane can travel 500 miles per hour with the wind 400 miles per hour against the wind, find the speed of the plane without a wind and the speed of the wind? What is the speed of the plane in still air?

    asked by rangel on March 24, 2012
  24. Physics

    Also got lost on this question: A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge 235m below. If the plane is traveling horizontally with a speed of 250 km/h (69.4 m/s), (a) how far in advance of the recipients

    asked by LINA on January 19, 2016
  25. physics

    How much effort force would be needed to roll a barrel with a resistance force of 100N up an inclined plane with a height of 2m and an inclined plane of 8m?

    asked by Jean on January 22, 2016
  26. physics

    a plane heads north but because of a wind blowing to the west the plane flies at a resultant velocity of 620mi/h 22 W of N . what was the velocity of the wind?

    asked by beth on September 22, 2011
  27. MATHS

    A PLANE FLIES 120km on a bearing of 045 and then flies 150km due east.how far east of the starting point is the plane?

    asked by CHIZ on June 17, 2016
  28. Physics

    A bomb is dropped from a plane flying at 4000 meters. The plane is flying at 80 m/s. How far, in a horizontal direction, did the bomb hit the ground?

    asked by Sarah on June 22, 2012
  29. Math

    TWO OBSERVERS, WHO ARE 2 MILES APART ON A HORIZONTAL PLANE, OBSERVE A BALOON IN THE SAME VERTICAL PLANE WITH THEMSELVES.FIND THE HEIGHT OF THE BALOON, (A) IF IT IS BETWEEN THE OBSERVERS (B) IF IT IS ON THE SAME SIDE OF BOTH OF THEM

    asked by Shihara on March 15, 2012
  30. physics

    A block accelerates at 3.3 m/s^2 down a plane inclined at an angle of 26 degrees.Find micro(k) between the block and the inclined plane. The acceleration of gravity is 9.81 m/s^2.

    asked by alexa on July 12, 2011
  31. physics

    As preparation for this problem, review Conceptual Example 10. The drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 105 m/s, and each tank is at the same height of 4.79 km above the

    asked by annon on August 14, 2015
  32. Physics

    A 75 kg pilot flies in her plane in a loop and notices that at the top of the loop, where the plane is completely uspside down for an instant, she hangs freely in her seat. the airspeed indecator reads 120m/sec. (a)what is the radius of the planes loop?

    asked by Maira on May 3, 2010
  33. Physics

    At the moment of release each plane has the same speed of 186 m/s, and each tank is at the same height of 3.11 km above the ground. Although the speeds are the same, the velocities are different at the instant of release, because one plane is flying at an

    asked by Bel on March 30, 2016
  34. Math

    A hockey team can win, lose, or tie a match. It gets 2 points for a win, 0 points for a loss, and 1 point for a tie. It has lost 10 out of the 28 matches it has played so far, and it has 30 points. Which two equations can be used to find its number of

    asked by Maria on March 31, 2016
  35. statistics

    27. Consider the following hypothesis test. H0: µ = 15 Ha: µ ≠ 15 A sample of 10 gives a sample mean of 8.9 and population variance of 9. Consider the following data drawn from a normally distributed population: 4, 8, 12, 11, 14, 6, 12, 8, 9, 5, α =

    asked by charlie on August 8, 2011
  36. Calculus Find max and min and saddle

    Find and classify all local min and maxima and saddle points of the function f(x,y)=/3yx^2-3xy^2+36xy I know there are 3 saddle points and one maxima. This is what I got: D=FxxFyy-(Fxy)^2 = 36xy-36(x+y-6)^2 But how do i solve for zero?? Im lost on this

    asked by Lucy on February 28, 2012
  37. PSY 240

    What is the difference between the idea of set points versus settling points in relation to weight control? I've read and re-read the text and can't find any info regarding the idea of settling points. I'm a little bit lost and would like some help with

    asked by Nikki on July 2, 2010
  38. psychology

    7. Sandra is not really good at painting and drawing, but she loves to spend her spare time "dabbling" as she calls it. If her products are not successful according to aesthetic standards, why does she continue to draw and paint? (Points: 5) She is

    asked by Anonymous on September 15, 2011
  39. Math

    in four games of basketball, michael scored 14, 9, 10 and 11 points. After one more game his mean was 12 points per game. how many points did he score in the fifth game?

    asked by Ted on September 30, 2015
  40. math

    HISTORY TEST You take a history test that has 100 regular points and 8 bonus points. You get a score of 91, which includes 4 bonus points. Let x represent the score you would have without the bonus points. Which equation represents this solution? Solve the

    asked by valeria on September 28, 2009
  41. math

    okay, sorry for last post but this one i'm stuck on. Use the vertical line test to determine if the relation {(–6, –2), (–2, 6), (0, 3), (3, 5)} is a function. Explain your response sorry that i cant put the graph down. those numbers are points in a

    asked by SkatingDJ on January 11, 2015
  42. algebra

    can anyone solve this please it is hard In a basketball game, Garrett and Logan scored a total of 19 points. Logan and Ray scored a total of 14 points. Logan scored as many points as Garrett and Ray together. How many points did each player score?

    asked by zachary stanich on February 15, 2012
  43. geology

    Can anyone explain how to draw a topographical profile to me. This is the question that is posted in our material. draw a topographic profile from coordinates F-6.7 to H.5-10 on the Lakeside quadrangle. F-6.7 H.5-10 FEET 4100-------------------------------

    asked by Jen on January 26, 2010
  44. Resonance structures

    Is there a good article on how to draw resonance structures? Sheryl Sheryl, These are so hard to do on these boards. In fact, I think it is impossible to draw them on these boards. This site may help some.

    asked by Sheryl on September 24, 2006
  45. earth science

    I need to draw a diagram showing delta, oxalate, tributary and meander. I also need to draw a diagram showing water table, zone of saturation, cone of depression, working well, dry well, aquitard, aquifer, spring, perched water

    asked by Ethan on November 11, 2010
  46. statistic

    The average score on a standardized test is 750 points with a standard deviation of 50 points. If 2,000 students take the test at a local school, how many students do you expect to score between 700 and 800 points?

    asked by tom on July 21, 2011
  47. statistics

    The average score on a standardized test is 500 points with a standard deviation of 50 points. If 2,000 students take the test at a local school, how many students do you expect to score between 450 and 550 points?

    asked by Anonymous on July 6, 2011
  48. Math

    In a game, the Bulls score a total of 103 points and made three times as many field goals (2 points each) as free throws (1 point each). They also made eleven 3 points. How many goals did they have? 103=3(2)+ 1 + 11(3) would this equation be right?

    asked by Amy~ on September 18, 2010
  49. Math

    Round your answer to the nearest whole number when necessary. In a basketball game,Ivring scored 80% of the teams points.If team as a whole scored 120 points,how many points did Ivring score? PLS answer within the next minute!!

    asked by Elizabeth on October 26, 2009
  50. Computer Science

    Convert the following binary numbers to decimal (6 points): 11111 101011 1101011 Convert the following decimal numbers to binary (6 points): 49 367 1023 Convert the following hex numbers to decimal (4 points): ACE 800 Convert the following decimal numbers

    asked by parth on October 18, 2015
  51. Math

    Multiplying a vector by a scalar results in: a) a scalar b) a perpendicular vector c) a collinear vector c) a parallel scalar

    asked by Jake on March 19, 2012
  52. Calc 4

    the question says to sketch the set of points in the complex plane determined by the follow. absvalue(z-(1-i))=1 this is my idea: absvalue(z-(1-i))= absvalue(z)-absvalue(1-i) absvalue(z)-sqrt(2)=1 absvalue(z)=1-sqrt(2)

    asked by Alexandria on May 11, 2007
  53. physics

    blocks 1 and 2 of masses 2 kg and 4kg, respectively, are connected by a light string, as shown above. These blocks are further connected to a block of mass 3kg by another light string that passes overr a pully of negligible mass and friction. Blocks 1 and

    asked by b on November 14, 2012
  54. physics

    a 200 kg block was moved along an inclined plane to a height of 10m. during this process 3000J of energy was lost due to friction. a. calculate the efficiency of the inclined plane. b. what would the efficiency of the simple machine be if the incline were

    asked by april on January 31, 2009
  55. math

    16) AB = 3.2cm BC = 8.4cm The area of the triangle ABC is 10cm². Calculate the perimeter and give the answer correct to 3 significant figures. 19) Bill said that the line y=6 cuts the curve x² + y² =25 at two points. a) By eliminating y, show that Bill

    asked by ahh on November 8, 2006
  56. Re: Physics

    Posted by COFFEE on Friday, March 30, 2007 at 4:25am. A 1.1 kg particle-like object moves in a plane with velocity components Vx = 30 m/s and Vy = 90 m/s as it passes through the point with (x, y) coordinates of (3.0, -4.0) m. (a) What is its angular

    asked by COFFEE on March 31, 2007
  57. Physics

    If a plane is flying 40 mph with a tailwind of 6 mph, how fast is the plane going.

    asked by April on June 21, 2013
  58. Geo

    A plane P cuts O in a circle that has diameter 20. If the diameter of the sphere is 30, how far is the plane from O?

    asked by Anonymous on March 2, 2011
  59. Calculus

    An airplane is flying above an observer standing on the ground. At the moment it passes overhead, the observer judges by its apparent size that the airplane’s altitude is 30,000 feet. It takes 50 seconds for the plane, moving in a straight, horizontal

    asked by Anonymous on March 23, 2016
  60. Physics

    A rescue plane wants to drop supplies to isolated mountain climbers on a rocky ridge H = 231 m below. If the plane is traveling horizontally with a speed of 227 km/h (63.1 m/s), how far in advance of the recipients (horizontal distance) must the goods be

    asked by Kim on February 7, 2012
  61. physics

    A stunt pilot is attempting to drop a water balloon from a moving airplane onto a target on the ground. The plane moves at a speed of 75.2 m/s and a 47° above the horizontal when the balloon is released. At the point of release, the plane is at an

    asked by Dianna on October 21, 2014
  62. algebra

    Which of the following is not a step used when graphing the equation y = −x + 8 using the slope-intercept method? Explain the correct order of steps needed to graph this equation, using the slope-intercept method. Plot the x-intercept (32, 0). Plot the

    asked by courtney on August 18, 2010
  63. Physics

    he drawing shows two planes each dropping an empty fuel tank. At the moment of release each plane has the same speed of 185 m/s, and each tank is at the same height of 3.62 km above the ground. Although the speeds are the same, the velocities are different

    asked by Cassie on August 11, 2015
  64. physics

    A plane drops a package of emergency rations to a stranded party of explorers the plane is traveling horizontally at 40m/s at a height of 100m from the ground find where the package strikes the ground ralative to the spot where it was dropped

    asked by job on June 9, 2011
  65. Math - Intersection of planes

    Find the vector equation of the line of intersection for the pair of planes. Plane one: x+5y-3z-8=0 Plane two: y+2z-4=0 I did half of the work but now i am stuck. the normal of the planes are not parallel and therefore a solution exists, you simultaneously

    asked by Shaila on September 1, 2010
  66. physics

    A satellite is in a circular earth orbit that has a radius of 6.63E+6 m. A model airplane is flying on a 16.4 m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane and the

    asked by Anonymous on February 12, 2012
  67. Math

    A plane flying at an altitude of 10,000 feet begins descending when the end of the runway is 50,000 feet from a point on the ground directly below the plane. Find the measure of the angle of descent (depression) to the nearest degree.

    asked by Austin on October 29, 2012
  68. Trig

    This has to do with vectors...I'm wondering if I set up the diagram correctly? A plane has a speed of 250mph and flies with a bearing of N35degE. The wind is blowing from the west at 25 mph with a heading of due east. What is the actual speed and heading

    asked by Mary on April 20, 2013
  69. Math

    An airplane is flying at an altitude of 6 miles and passes directly over a radar antenna. When the plane is 10 miles away, the radar detects that the distance is changing at a rate of 240 mph. what is the speed of the plane? This is an implicit

    asked by Chloe on May 13, 2013
  70. Geometry

    Three points are on a coordinate plane: A(1, 5), B(-2, -4), and C(6, -4). 1. Write an equation in point-slope form of the line with slope -1 that contains point C. 2. Write an equation in point-slope form of the line that contains points A an B. 3. Write

    asked by Daniella on February 21, 2011
  71. English

    need help on the book night. 11. How does Moishe the Beadle’s experience in the Galician forest change him? Your response should be at least one paragraph long. (2 points) 12. What is the irony of Elie’s and his neighbors' joy in leaving the hot

    asked by love on December 28, 2010
  72. physics

    an airplane is diving at a speed of 300 km/h and the angle betweent he plane's dive path and the vertical is 50 degrees. The plane launches a rocket which lands at 750m horizontally from beneath the launch point. a) find the flight time of the rocket and

    asked by nix on November 2, 2006
  73. Math

    Suppose a man is 30years old and would like to retire at age 65 ​Furthermore, he would like to have a retirement fund from which he can draw an income of ​$50,000 per yearlong dash—​forever! How can he do​ it? Assume a constant APR of 5​%. He

    asked by chris on August 10, 2017
  74. Geometry

    How do I find the distance between (-9,3) and (-1,-5) By using the Pythagorean theorem. The line between the two points is the hypotenuse of a triangle with perpendicular side lengths of 8 in the x direction and 8 in the y direction. The 8's come from the

    asked by Kasey on June 14, 2006
  75. Entrepreneurship I

    1. Describe 3 trends that you've noticed, and explain how each one might generate a small business opportunity. (3-6 sentences. 3.0 points) 2. Make a list of at least 5 business ideas that interest you. (2.0 points) 3. Explain which business idea from

    asked by 9thgradestudent on November 3, 2015
  76. English

    It's two p.m. There is a clock picture on the page. Draw an hour hand pointing to two on the clock. Draw a minute hand inicating twelve on the clock. ----------------- Is the expressions corect? On the clock?

    asked by John on June 20, 2008
  77. English Expression

    Draw a square, which should be 70 cm by 70 cm. In the middle, draw a house. Next to the house, draw one more house. The houses should not be big. You have to draw other things in the picture. On the top left side, there is a bird. On the top right side,

    asked by John on April 17, 2008
  78. MATH

    if you draw two cards from a deck of 52 cards without replacing the first card, what is the probability that you will draw a spade and another spade?

    asked by bryce on December 19, 2012
  79. 11th grade

    Joe wants to draw a triangle.the lengths are 5cm,12cm,and 13cm. A:will joe be able to draw the triangle?why or why not?

    asked by Anonymous on December 13, 2010
  80. math

    Lisa and Katie are playing a card game, and a total of 900 points has been scored. Lisa scored 150 more points than Katie. If you let l= the number of points that Lisa scored, and k= the number of points that Katie scored, then the problem can be

    asked by Claire on May 18, 2016
  81. Physics

    An airplane is flying above an observer standing on the ground. At the moment it passes overhead, the observer judges by its apparent size that the airplane’s altitude is 30,000 feet. It takes 50 seconds for the plane, moving in a straight, horizontal

    asked by Anonymous on March 23, 2016
  82. math, correction

    bobpursley. i'm still questioning the problem states find the slope of any line perpendicualr to the line through points (3,3) and (2,8). y= (8-3)/(2-3) the slope i get is. (5)/(-1) for the first slope now to get any line perpendicular to the line through

    asked by Jasmine20 on January 28, 2007
  83. math

    In a test, the average was 74 points/100 points. After the test, three of students relocate. Then the average was 75 points/100. The circumstances of the students were 6:5:3. How many points did the three students have? I know the answere is 45, 75 and 90,

    asked by Simon on May 11, 2010
  84. math

    In a test, the average was 74 points/100 points. After the test, three of students relocate. Then the average was 75 points/100. The circumstances of the students were 6:5:3. How many points did the three students have? I know the answere is 45, 75 and 90,

    asked by Simon on May 11, 2010
  85. Physics

    A point charge +6.7 uC is placed at the origin, and a second charge –3.6 uC is placed in the X - Y plane at (0.40 m , 0.55 m ). Where should a third charge be placed in the plane so that the net force acting on it is zero?

    asked by Jim on January 11, 2013
  86. physics

    A box of weight 2N 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 1.7 N, the coefficient of kinetic friction between the box and the plane is O.30, and

    asked by Ashley on December 1, 2009
  87. physics

    A jetliner can fly 5.57 hours on a full load of fuel. Without any wind it flies at a speed of 2.43 x 102 m/s. The plane is to make a round-trip by heading due west for a certain distance, turning around, and then heading due east for the return trip.

    asked by randy on October 6, 2011
  88. physics

    A satellite moves on a circular earth orbit that has a radius of 6.68E+6 m. A model airplane is flying on a 16.3 m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane and the

    asked by Katie on February 20, 2012
  89. physics

    solid sphere of uniform density starts from rest and rolls without slipping down an inclined plane with angle è = 30o. The sphere has mass M = 8 kg and radius R = 0.19 m . The coefficient of static friction between the sphere and the plane is ì = 0.64.

    asked by phil on April 1, 2013
  90. Physics

    A satellite moves on a circular earth orbit that has a radius of 6.4 106 m. A model airplane is flying on a 23-m guideline in a horizontal circle. The guideline is parallel to the ground. Find the speed of the plane such that the plane and the satellite

    asked by Natasha on February 22, 2012
  91. trig

    A plane is flying with an airspeed of 150 miles per hour and heading 155°. The wind currents are running at 25 miles per hour at 160° clockwise from due north. Use vectors to find the true course and ground speed of the plane.

    asked by janice on November 16, 2012
  92. physics

    A satellite moves on a circular earth orbit that has a radius of 6.68E+6 m. A model airplane is flying on a 16.3 m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane and the

    asked by Katie on February 17, 2012
  93. physics

    A satellite moves on a circular earth orbit that has a radius of 6.68E+6 m. A model airplane is flying on a 16.3 m guideline in a horizontal circle. The guideline is nearly parallel to the ground. Find the speed of the plane such that the plane and the

    asked by Katie on February 18, 2012
  94. Trig

    A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 3 mi apart, to be angle x = 31° and angle y = 49°, as shown in the figure. (Round your answers to two decimal places.) Find the distance of the plane from

    asked by Dan on March 1, 2012
  95. Algebra

    A plane is traveling at a speed of 160 mph in still air. Flying with a tail wind, the plane is clocked over a distance of 800 miles. Flying against a headwind it takes 3 more hours to complete the return trip. What was the wind velocity?

    asked by Janelle on June 25, 2016
  96. maths --plse help me..

    how to find the cartesian eqn of plane passing through A(0,0,0) and B(3,-1,2) and parellel to line (x-4)/1 = (y+3)/-4 = (z+1)/7 basically how to find a plane parallel to a given line??

    asked by Anonymous on December 28, 2012
  97. physics

    You use an inclined plane to move furniture into a truck. You perform 224 kJ of work, but only do 91 kJ of useful work. What is the efficiency of the inclined plane?

    asked by meriyhome on October 4, 2014
  98. Linear Algebra

    1. Considering 2 planes with equations: x + 2y - 3z = 1 x + 2y - 3z = 18 (a) Given (a,b,c) a point on the first plane, find the point where the line perpendicular to both planes passes by (a,b,c) and through the 2nd plane.

    asked by Ben on October 10, 2012
  99. math

    A plane cuts through a rectangular prism. The plane is parrallel to the base of the rectangular prism. What is the shape of cross section?

    asked by Jarron on May 18, 2014
  100. DamotAk mathematecs

    A plane flies 90KM on a bearing 040 and then flies 90KM due east how far is the plane from the starting point

    asked by Ope on May 4, 2016