1. physics

    A source of light and a screen lie in the same plane, 3 metres in front of a plane mirror, the mirror surface being parallel with the screen. If the mirror is rotated through 10degrees, how far will the patch of light mves across the screen?

    asked by Need help please! on October 23, 2012
  2. Math

    1. A small town is represented on a graph in the coordinate plane. The coordinates of the post office are left-parenthesis 2 comma 3 right-parenthesis. Which other building is in the same quadrant? (1 point) a, bank left-parenthesis negative 3 comma 1

    asked by ? on May 2, 2018
  3. Physics

    24. 0/3 points All Submissions Notes Question: Walker2 3.P.015. Question part Points Submissions 1 2 3 0/1 0/1 0/1 0/7 3/7 2/7 Total 0/3 A vector A has a magnitude of 49.0 m and points in a direction 20.0° below the x axis. A second vector, B, has a

    asked by G on September 9, 2010
  4. Physics Again!!

    Am sending the same question coz i can't find the first one on the message boards. So plz help me. 1. 'velocity is a vector quantity, and the kinetic energy of a body is equal to half its mass times the square of its velocity, so kinetic energy must also

    asked by Ishani on February 27, 2007
  5. physics

    Vector has a magnitude of 136 units and points 35.0 ° north of west. Vector points 69.0 ° east of north. Vector points 19.0 ° west of south. These three vectors add to give a resultant vector that is zero. Using components, find the magnitudes of (a)

    asked by Joe on August 26, 2014
  6. physics

    Vector has a magnitude of 113 units and points 34.0 ° north of west. Vector points 63.0 ° east of north. Vector points 17.0 ° west of south. These three vectors add to give a resultant vector that is zero. Using components, find the magnitudes of (a)

    asked by Tamara on September 7, 2016
  7. Physics

    anybody help me to my homework please.!thanks TRUE or FALSE 1.the north pole of a permanent magnet is attracted to a south pole 2.iron,aluminum, and nickel are all ferromagnetic materials 3.all permanent magnets are surrounded by a magnetic field 4.the

    asked by Shelle on February 26, 2016
  8. Physics

    help me to my homework please.!PLEASe PLEASE. TRUE or FALSE 1.the north pole of a permanent magnet is attracted to a south pole 2.iron,aluminum, and nickel are all ferromagnetic materials 3.all permanent magnets are surrounded by a magnetic field 4.the

    asked by Shelle on February 27, 2016
  9. math/probability

    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. two red marbles? b. a red

    asked by jason on October 22, 2009
  10. MATH Prob.

    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. two red marbles? b. a red

    asked by Twg on August 12, 2009
  11. Math / Physics

    A block P of mass 3.56 kg is lying on a rough inclined plane of angle θ = 0.73 radians. Block P is attached via a model string that passes over a model pulley to a second block Q of unknown mass M kg hanging vertically as shown in diagram. The coefficient

    asked by SL on March 12, 2017
  12. trig

    A plane has an airspeed of 200 miles per hour and a heading of 28.0°. The ground speed of the plane is 207 miles per hour, and its true course is in the direction of 38.0°. Find the speed and direction of the air currents, assuming they are constants.

    asked by bryan on November 29, 2012
  13. Physics

    A remote control model airplane connected to a string is flown in a circle with a radius of 0.348 m about a fixed axis with an angular velocity of +1.47 rad/s. The plane’s throttle is increased, so that it acquires an angular acceleration of 2.18 rad/s2.

    asked by Anonymous on April 24, 2015
  14. physics

    During takeoff, an airplane climbs with a speed of 140 m/s at an angle of 42 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the

    asked by Anonymous on March 15, 2013
  15. Physics/trig

    During takeoff, an airplane climbs with a speed of 300 m/s at an angle of 36 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the

    asked by Jenna on September 4, 2015
  16. Physics

    During takeoff, an airplane climbs with a speed of 110 m/s at an angle of 44 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the

    asked by Anonymous on September 7, 2013
  17. physics

    During takeoff, an airplane climbs with a speed of 120 m/s at an angle of 33 degrees above the horizontal. The speed and direction of the airplane constitute a vector quantity known as the velocity. The sun is shining directly overhead. How fast is the

    asked by joe on September 8, 2015
  18. Calculus

    A plane flying with a constant speed of 5 km/min passes over a ground radar station at an altitude of 4 km and climbs at an angle of 35 degrees. At what rate, in km/min is the distance from the plane to the radar station increasing 10 minutes later? I got

    asked by Z32 on September 25, 2009
  19. MATH

    Write a mathematical sentence to compare each pair of measures. GB and GF Please help. I don't understand. I don't understand either. You'll need to supply more details. Ordinarily, a measure is any function that assigns non-negative values to objects,

    asked by l on September 4, 2006
  20. Maths, velocity time graph

    I am asked to draw a graph of the total distance traveled versus the total time taken for a journey between points A and B. The journey never stops but midway through its velocity remains stable for a good period of the journey. So regarding the shape of

    asked by Anon on October 9, 2017
  21. Management

    A firm is assigned the network part 132.99. It selects an 11-bit subnet part. (20 pts) a) Draw the bits for the four octets of the IP address of the first host on the first subnet. b) Convert this answer into dotted decimal notation. c) Draw the bits for

    asked by Jane on May 6, 2014
  22. maths

    could you please help me.... Draw the graph of y=x-3 for values of x from -3 to 4 also how would you draw the graph of to 2x+y=7 for values of x from 0 to 5 i don't need the graph drawn i just need two plots for each! thanks

    asked by jacob on February 21, 2012
  23. macroeconomics

    Referring to the table in question 10, suppose improvement occurs in the technology of producing forklifts but not in the technology of producing automobiles. Draw the new production possibilities curve. Now assume that a technological advance occurs in

    asked by lou on September 15, 2012
  24. calculus

    Find all relative extrema and points of inflection of the function: f(x) = sin (x/2) 0 =< x =< 4pi =< is supposed to be less than or equal to. I can find the extrema, but the points of inflection has me stumped. The inflection point is (2pi,0) but

    asked by James on November 15, 2010
  25. 6th grade math

    On a math quiz, Mary scored 3 points for each of the 12 multiple choice questions she answered correctly, and 5 points for each of the 8 free response questions she answered correctly. What was the total number of points Mary scored?

    asked by Andrew on March 8, 2017
  26. math

    draw and label BN. Draw and label point T on it.

    asked by jonny on August 29, 2012
  27. Physcis

    An airplane flying at 120km/h due west moves into a region where the wind is blowing at 40km/h due east. If the plane's original vecotr velocity is Vplane, what is the expression for the plane's resulting velocity in terms of Vplane. a. 1/3 >Vplane b.

    asked by Josh on September 19, 2010
  28. geometry

    In the middle of the page, draw an equilateral triangle with 2 inch sides and the bottom parallel to the bottom of the page. 2. From the center of the right side, draw two parallel lines an inch apart and an inch long. 3. Draw a line from the end of one of

    asked by Des on December 10, 2012
  29. math

    Three points P, Q and R are on a level ground. Q is 240m from P on a bearing of 230°. R is 120m to the east of P. (a) Using a scale of 1cm to represent 40m, draw a diagram to show the positions of P, Q and R in the space provided below. (b) Determine :

    asked by Anonymous on June 2, 2012
  30. Math

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

    asked by larry on October 31, 2014
  31. Business Communications

    Which of the following is NOT a question you need to answer to choose a persuasive strategy? (Points: 5) What do you want readers to do? What points will the audience agree with? How strong a case can you make? What kind of persuasion does your

    asked by lisa on November 22, 2010
  32. math

    A spinner is spun 100 times. It lands on brown 50 times,lands on red 25 times and lands on yellow 25 times.Draw a spinner which will give this theoretical probability distribution. How to draw this spinner? Plz help

    asked by Anonymous on February 22, 2016
  33. MATH HELP

    Which of the following statements best describes the graph of 4x − y = 1? It is a straight line joining the points (0, −1), (1, 3), and (−1, −5). It is a straight line joining the points (4, −3), (−1, 2), and (−4, 5). It is a curve joining

    asked by Oscar on December 20, 2015
  34. physics

    A 5.11-kg pendulum bob, at a height of 0.730 m above the floor, is released and swings down to the ground where it collides elastically with a 2.29 kg block initially at rest. The block then slides up a 31.0° incline. Find how high up the incline the

    asked by patt on April 3, 2013
  35. college mathematics

    b. Larry and Michael scored a total of 48 points in the basketball game. If Michael scored twice the number of points Larry did, how many points did Larry score?

    asked by Anonymous on May 9, 2016
  36. physics

    A car is released from rest on a frictionless inclined plane. (Figure: twitpic com/e8nkhj) Calculate the momentum pi at the end of the plane in terms of measured quantities x, y, l, and m. Assume θ is very small so that h/l ~= y/x. (Hint: use conservation

    asked by Anonymous on July 21, 2014
  37. Public Speaking

    I need help writing a speech out on the following topic:Why banning the use of cell phones while driving should be mandatory nationwide. tate the general purpose, specific purpose, and central idea clearly and in the appropriate form.4. Limit your main

    asked by Amieca on May 22, 2013
  38. math

    A salesman may draw a fixed salary of $10000 per month and a 2% commission sales or he can draw a fixed salary of $4000 per month and a 12% commission on sales.what volume of sales would he earn him the same amount of money in both rates??pls explain the

    asked by tish on July 17, 2016
  39. classroom instruction

    • Plan a science experiment. In your paper, address the following points: o List the equipment and materials to be included in the science kit. o Explain what safety precautions are needed. o Outline the step-by-step procedures for the experiment. o

    asked by scooby on March 29, 2010
  40. physics

    an airplane flying north is observed from the ground. it's velocity is 225 m/s north. the pilot who is flying the plane measures a velocity of 250m/s north. what is the velocity of the wind that affects the plane

    asked by anna on October 17, 2017
  41. physics

    A U.S quarter is rolling on the floor without slipping in such a way that it describes a circular path of radius R=4 cm. The plane of the coin is tilted at an angle of θ=45∘ with respect to the horizontal plane (see the figure below). Find the coin's

    asked by Steven on July 30, 2013
  42. geometry

    the pilot of a plane flying 2000 meters above sea level observes two ships in line due east of the plane. the angles of depression of the line of sight of the pilot to the two ships are 42 degrees and 30 degrees. how far apart are the two ships at the time

    asked by Anonymous on June 3, 2010
  43. Math

    A particle of mass 9kg rests on a rough plane inclined at 30degrees to the horizontal. The coefficient of friction between the particle and the plane is 1/3. A horizontal force is applied to the particle so that the particle just begins to move upwards.

    asked by Kobby on April 21, 2017
  44. Physics

    A 200-loop coil of cross sectional area 8.5 lies in the plane of the paper. Directed out of the plane of the paper is a magnetic field of 0.06 T. The field out of the paper decreases to 0.02 T in 12 milliseconds. (a) What is the magnitude of the change in

    asked by Liz on March 12, 2013
  45. math

    For each of the following draw a Venn diagram for sets A, B, and C that satisfies the given conditions: a. Draw a Venn diagram for sets A, B, and C such that A⊆B;C⊆B;A and C have no elements in common b. Draw a Venn diagram for sets A, B, and C such

    asked by Anonymous on November 11, 2011
  46. calculus

    Consider a plane curve which is described in polar coordinates (r, @) by r = g(@) for @ for all [a,b] (@ representing theta). Starting from the known expression for the length of a plane curve in Cartesian coordinates and the equation x = rcos@, y = rsin@,

    asked by mark on September 21, 2008
  47. calculus

    Consider a plane curve which is described in polar coordinates (r, @) by r = g(@) for @ for all [a,b] (@ representing theta). Starting from the known expression for the length of a plane curve in Cartesian coordinates and the equation x = rcos@, y = rsin@,

    asked by mark on September 22, 2008
  48. Calculus

    Consider a plane curve which is described in polar coordinates (r, @) by r = g(@) for @ for all [a,b] (@ representing theta). Starting from the known expression for the length of a plane curve in Cartesian coordinates and the equation x = rcos@, y = rsin@,

    asked by mark on September 22, 2008
  49. Physics

    I have this very confusing two part question that i am having trouble understanding. For the first question i first created a free body diagram to show the forces acting on both the boxes. However i am unsure of what to do after this since i don't

    asked by joe on February 8, 2017
  50. HCl - Chem

    Assume you had a very magnified view of a solution of HCl that allowed you to "see" the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear and hydrogen gas would be released. Draw this out using symbols to

    asked by Gil on January 14, 2007
  51. Physics

    An aircraft has a cruising speed of 100 m/s On a particular day, a wind is blowing from the west at 75.0 m/s If the plane is pointed due north, what would be the magnitude and direction of the velocity relative to the ground? If the pilot wishes to have a

    asked by Niki on October 16, 2013
  52. Physics

    A 2.0 lb block is given an initial speed of 4.0 ft/sec up an inclined plane starting from a point 2.0 feet from the bottom as measured along the plane. If the plane makes an angle (theta = 30 degrees) with the horizontal and the coefficient of friction is

    asked by Nora on March 12, 2015
  53. Math

    Henry took five tests. His average score was 57 points. He scored at least 50 points on each test. There were 100 points possible on each test. What is the highest score that Henry could have earned on any of the five tests?

    asked by Edgar on October 17, 2016
  54. consumer math

    Jim opened an account with $400. The account pays three percent quarterly. How much is in the account at the end of two years? Round to the nearest dollar. (Points : 1) 5. Use this table to answer questions 5 through 8. Principal Rate Compounded Time Final

    asked by tina on February 12, 2012
  55. Math

    Which of the following is true if a pentagon tessellates a plane? a. A pentagon never tessellates a plane b. All of its sides must be the same length c. It must be a regular pentagon d. It has one pair of parallel sides I was thinking its (c) but not sure.

    asked by Rena Lambides on January 19, 2011
  56. Math

    A plane flys 425 miles with the wind and 350 miles against the wind in the same length of time if the speed of the wind is 15 mph what is the speed of the plane

    asked by Brandon on March 9, 2013
  57. Math

    The air speed of a plane is 150 mph. If the plane traveled the same distance in two hours with the wind as it flew in 3 hours against the wind, what was the wind speed?

    asked by Raquel on November 28, 2016
  58. Physics

    At an air show, a jet plane has velocity components vx = 695 km/h and vy = 440 km/h at time 4.85s and vx= 933km/h and vy = 465 km/h at time 7.12 s. For this time interval, find (a) the x and y components of the plane’s average acceleration and (b) the

    asked by mo on January 22, 2012
  59. Physics

    At an air show, a jet plane has velocity components vx = 695 km/h and vy = 440 km/h at time 4.85s and vx= 933km/h and vy = 465 km/h at time 7.12 s. For this time interval, find (a) the x and y components of the plane’s average acceleration and (b) the

    asked by mo on January 22, 2012
  60. math

    question: find the points at which the graph of x^2 -4x + y62 -6y =12 has a vertical or horizontal tangent line. I found the deriviative to be (x-2)/(3-y) Then, the x value for a horizontal would be x=2 and the y value for a vertical would be y=3. But how

    asked by alison on November 1, 2009
  61. Maths

    1. In the xy-coordinate plane, point A is the midpoint of the segment with endpoints (2,4) and (-4,-4). What is the distance from point A to the origin? I know how to find the distance between the two points- 10. But I don't know where to go from there. 2.

    asked by Lina on March 22, 2015
  62. Algebra 2

    Worldwide Airlines flies from Lakeside to Whichitfalls in 4 hours with a tail wind, The return trip against the wind takes 5 hours. Whichitfalls is 5040km from Lakeside. Find the speed of the plane and the velocity of the wind. Would you get on the plane?

    asked by Alex on August 31, 2014
  63. Physics

    Hi I am having difficulty with this question: Consider a simple “system” of a thin lens with focal length 12 cm, an input plane at 25 cm in front of the lens and an output plane at 11 cm beyond the lens. a) Find the matrix for the simple system b) Why

    asked by John J.B on March 12, 2016
  64. Chemistry

    Draw a titration curce of 25.0 mL of 0.100 M aluminum ion (pKa=5.14) with 0.100 M NaOH. I am familiar with the process of drawing titration curves, however, I have never done an example with an ion (aluminum ion) rather than an actual acid. If anyone can

    asked by Anna on March 11, 2012
  65. 7th grade math

    last weekend,alans basketball team played in a tournament. alan scored 1/5of the teams points,his friend jake scored 30% of the teams points. what fraction of the teams points were scored by alan and jake?

    asked by abby on October 3, 2009
  66. Math

    Another card game. In a new card game, you start with a well-shuffed full deck and draw 3 cards without replacement. If you draw 3 hearts, you win $50. If you draw 3 black cards, you win $25. For any other draws, you win nothing. (a) Create a probability

    asked by Sanaya on January 29, 2016
  67. physics

    A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survivor and releases an emergency kit with a parachute. The kit descends at a constant vertical acceleration of -6.89 m/s^2 and the initial plane horizontal

    asked by alex on May 2, 2018
  68. physics

    A rescue plane is flying horizontally at a height of 132 m above the ground. The pilot spots a survivor and releases an emergency kit with a parachute. The kit descends at a constant vertical acceleration of and the initial plane horizontal speed is .

    asked by tr76r65 on April 22, 2015
  69. physics

    In 1976, the Lockhead SR-17A Blackbird set the record speed for any airplane: 3.53x10^3 km/h. suppose you observe this plane ascending at this speed. For 20.0s, it flies at an angloe of 15.0 degrees above the horizontal, then for another 10.0s its angle of

    asked by jack on October 25, 2011
  70. Trigonometry law of cosine

    A plane is flying with an airspeed of 200 miles per hour and heading 150°. The wind currents are running at 30 miles per hour at 175° clockwise from due north. Use vectors to find the true course and ground speed of the plane. (Round your answers to the

    asked by NEED HELP ASAP on April 7, 2014
  71. math

    A Boeing 747 jet takes off from Boston's Logan Airport, which is at sea level, and climbs to a cruising altitude of 27,000 ft at a constant rate of 1400ft/min. A.) write a linear equation for the height of the plane in terms of the time after takeoff. B.)

    asked by kiley on March 15, 2010
  72. Science

    Two trains are traveling towards each other, starting 100 kilometers apart. One train travels at 40 kilometers per hour while the other travels at 60 kilometers per hour. The plane starts flying at 90 kilometers per hour, starting from the location of the

    asked by Edwin on March 29, 2017
  73. Life sciences

    The question says. You are on the grade10 dance committe. Your job is to draw up a budget for the grade10 dance which is to be held in your school hall. There are 110 grade10 learners,and each will pay R120 to attend the function .draw up a realistic

    asked by Success on August 11, 2014
  74. Networking

    A firm is assigned the network part 128.171. It selects a 10-bit subnet part. a)Draw the bits for the four octets of the IP address of the first host on the first subnet. b)Convert this answer into dotted decimal notation. c)Draw the bits for the second

    asked by Jennifer on April 18, 2012
  75. College Algebra

    Solve the problem. Jon has 1162 points in his math class. He must have 86% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive

    asked by Jess on February 11, 2012
  76. Math

    Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The lines AM,AN,BP,BQ intersect at the points S,T,U,V as shown in the figure below, dividing the triangle into 9 regions. Determine the

    asked by Bob on June 14, 2013
  77. Mathematics

    Triangle ABC has ∠A=40∘, ∠B=60∘, ∠C=80∘. Points M,N trisect the side BC and points P,Q trisect the side AC. The lines AM,AN,BP,BQ intersect at the points S,T,U,V as shown in the figure below, dividing the triangle into 9 regions. Determine the

    asked by Steve on June 16, 2013
  78. math 8th

    The scores on a test are found by adding and subtracting points as shown in table below. If Salazar's score on a 15 question test was 86 points,how many of his answers were correct, incorrect and blank. Answers Points correct +8 incorrect -4 blank -2 86

    asked by Daniel on March 3, 2016
  79. physics

    A plane drops a hamper of medical supplies from a height of 2560 m during a practice run over the ocean. The plane’s horizontal velocity was 116 m/s at the instant the hamper was dropped.What is the magnitude of the overall velocity of the hamper at the

    asked by stephan on November 19, 2014
  80. Physics

    Two boxes are connected by a light string that passes over a light, frictionless pulley. One box rests on a frictionless ramp that rises at 30° above the horizontal (see the Figure below), and the system is released from rest. (a) Which way will the 50kg

    asked by David on March 5, 2016
  81. Physics 2

    Two boxes are connected by a light string that passes over a light, frictionless pulley. One box rests on a frictionless ramp that rises at 30° above the horizontal (see the Figure below), and the system is released from rest. (a) Which way will the 50kg

    asked by David on March 5, 2016
  82. Physics

    A plane drops hamper of medical supplies from a height of 2740m during a practice run over the ocean. The plane's horizontal velocity was 126m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity of the hamper at the

    asked by sam on September 25, 2012
  83. physics

    A plane drops a hamper of medical supplies from a height of 5750 m during a practice run over the ocean. The plane’s horizontal velocity was 109 m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity of the hamper at the

    asked by Anonymous on October 16, 2012
  84. Physics

    A plane drops a hamper of medical supplies from a height of 3410 m during a practice run over the ocean. The plane's horizontal velocity was 121 m/s at the instant the hamper was dropped. What is the magnitude of the overall velocity of the hamper at the

    asked by Anna on December 4, 2010
  85. English

    Choose the best paraphrase of these lines from the "The Sidewalk Racer" A)I wish I could move as fast as a car or a plane, but I cant because I am only a human. B)I feel as if I am botha single engine plane and a car.(I pick this) C)With my one-engine

    asked by trololololololololol on March 23, 2016
  86. Probability #1

    Please check my answers. Thank you! Another card game. In a new card game, you start with a well-shuffed full deck and draw 3 cards without replacement. If you draw 3 hearts, you win $50. If you draw 3 black cards, you win $25. For any other draws, you win

    asked by Sanaya on January 28, 2016
  87. ratio

    the ratio of boys to girls at Shadetree Park is 1:3. draw a picture of the children in the park if there are 3 boys. How many boys and girls do I draw?

    asked by Celest on June 13, 2013
  88. physics!

    An Alaskan recue plane drops a package of emergency rations to a stranded party of explorers, as illustrated. The plane is traveling horizontally at 100.0m/s at a height of 50.0 m above ground. What horizontal distance does the package tral before striking

    asked by emily on December 10, 2008
  89. English

    I'm having a hard time writing a thesis statement on three points that surrounding characters' traits in Arthur Miller's, The Crucible. Can anyone help me with three points. I have read it in class and reviewed it, but I still don't comprehend. I would

    asked by Sam on October 21, 2010
  90. physics

    a 250 kg crate is placed on an adjustable incline plane. If the crate slides down the incline with an exceleration of 0.7 m/s squared when the incline angle is 25 degrees, then what sould the incline angle be in order for the crate to slide down the plane

    asked by uta on October 22, 2011
  91. calculus

    A plane that is flying horizontally at an altitude of 6 kilometers and a speed of 570 kilometers per hour passes directly over a radar station. How fast is the distance between the plane and the radar station increasing when the distance between the two is

    asked by Matr on October 28, 2013
  92. math

    a small plane heads west at 320 kph. there is a north wind blowing at 24 kph. what is the velocity (2 parts!) of the plane with respect to the ground? would the answer be 320.9 kph? but there are two parts to the answer. what is the other part?

    asked by clarice on October 6, 2015
  93. Calc

    A plane that is flying horizontally at an altitude of 6 kilometers and a speed of 680 kilometers per hour passes directly over a radar station. How fast is the distance between the plane and the radar station increasing when the distance between the two is

    asked by Georgia on October 20, 2009
  94. Physics

    A block,mass 20kg,is pulled upwards by a force F along a plane inclined at 30 degree to the horizontal.it accelerate along the inclined plane at 2m.s-2. The surface of the inclined exert a friction force on the block calculate the component of the

    asked by Kenneth on February 7, 2013
  95. Physics

    A block,mass 20kg,is pulled upwards by a force F along a plane inclined at 30 degree to the horizontal.it accelerate along the inclined plane at 2m.s-2. The surface of the inclined exert a friction force on the block calculate the component of the

    asked by Kenneth on February 7, 2013
  96. Physics

    An athlete starts at point A and runs at a constant speed of 5.40 m/s around a round track 250 . in diameter. Find the x component of this runner's average velocity between points A and B. GOT THIS!!! 3.4 m/s Find the y component of this runner's average

    asked by Josh on September 12, 2006
  97. calculus II

    We're doing areas by integrals now, with 2 eqns. I have a few questions. 1. Sketch the region in the xy-plane defined by the inequalities x-2(y^2)> 0 and 1-x-abs(y)>0. and find its area. Would it be best to solve for x, then graph it as x= something? Then

    asked by Shelley on February 8, 2007
  98. physics

    A 20.0kg block rests on a plane inclined at 20.0o to the horizontal. The coefficient of static friction is 0.250, and the coefficient of kinetic friction is 0.150. (a) What is the minimum magnitude of the force F, parallel to the plane that will prevent

    asked by Jean on March 21, 2007
  99. phi103

    1. A conditional sentence with a false antecedent is always (Points : 1) true. false. Cannot be determined. not a sentence. 2. "Julie and Kurt got married and had a baby" is best symbolized as (Points : 1) M v B M & B M → B M ↔ B 3. Truth tables can

    asked by thomas on December 19, 2011
  100. math

    each of the points on the two graphs are of the form (n, tn), where tn is either a geometric or arithmetic sequence. identify the graph that presents a geometric sequence. justify your answers. then determine S8 of the geometric sequence graph A points:

    asked by nicole on January 18, 2011