1. chemistry

    design a simple lever that could be raised and lowered smoothly using niitinol wires.

    asked by kristin on February 16, 2012
  2. Chemistry

    I am supposed to design a simple lever that could be raised and lowered smoothly using nitinol wires. Can anyone give me any ideas about that coz I don't know how to start with it. I think that it is related to nitinol wires' memory but I had no ideas

    asked by Anonymous on April 11, 2009
  3. Art

    French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an

    asked by anonymous on March 31, 2015
  4. Art help please

    French artist daguerre invented the camera using which creative sensibilities that were developed during his painting and set design career? A. an eye for line and form B. an eye for patterns and design C. an eye for color placement and color mixing D.an

    asked by anonymous on March 31, 2015
  5. Art

    Which of the following shared trait of artists and inventors allows an artist to render accurate images on canvas and an inventor to create a detailed model of a product A. knowledge of mathematics B. hand-eye coordination C. photographic memory******** D.

    asked by Artize on March 19, 2017
  6. Please help w/Math

    A survey of the opinions of 12 leading Economists in a certain country showed that, because oil prices were expected to drop in that country over the next 12 months, 10 had lowered their estimate of the consumer inflation rate, 10 had raised their estimate

    asked by Bobbie on November 4, 2016
  7. phycis

    59. A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.

    asked by denise on September 8, 2014
  8. physics

    A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show that the weight of the load is 360 N.

    asked by Peg on May 19, 2014
  9. physical science

    A simple lever is used to lift a heavy load. When a 60-N force pushes one end of the lever down 1.2 m, the load rises 0.2 m. Show what the weight of the load is 360N.

    asked by ann on September 6, 2014
  10. Physics

    A force of 60 N is exerted on one end of a 1.0-m-long lever. The other end of the lever is attached to a rotating rod that is perpendicular to the lever. By pushing down on the end of the lever, you can rotate the rod. If the force on the lever is exerted

    asked by Mr. R on March 18, 2012
  11. science please help

    So I have to do this project on simple machines. The invention we need to make should have at least 2 simple machines on it. We also have to draw it on posterboard and write a paragraph about it. One more thing is that it must make a person's life easier

    asked by Anonymous on February 21, 2013
  12. science

    So I have to do this project on simple machines. The invention we need to make should have at least 2 simple machines on it. We also have to draw it on posterboard and write a paragraph about it. One more thing is that it must make a person's life easier

    asked by Anono on February 20, 2013
  13. science

    were doing simple machines and on my paper it shows a door knob What simple machine is that ( lever,wedge etc.) And my sec que it also shows scissors what simple machine is that?

    asked by elise on October 1, 2007
  14. physics

    A boy exerts a force of 210 N on a lever to raise a 1.25 103 N rock a distance of 12 cm. If the efficiency of the lever is 88.7%, how far did the boy move his end of the lever? Thanks for all your help :)

    asked by PhysicsCrazy<3 on March 2, 2012
  15. physics

    Ayesha exerts a force of 186 N on a lever to raise a 2.70 × 103-N object to a height of 29.0 cm. If the efficiency of the lever is 83.3 percent, how far does Ayesha move her end of the lever?

    asked by sam on March 1, 2012
  16. physics

    A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of

    asked by Tim on June 8, 2011
  17. physics

    3. A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage

    asked by Tim on June 8, 2011
  18. science

    A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance from the fulcrum to the load is 0.250 m. What is the mechanical advantage of the lever? What is the ideal mechanical advantage of

    asked by Anonymous on June 8, 2011
  19. phyiscs- rube goldberg machine

    Identify two types of simple machines that are included in a Rube Goldberg machine. Pick any simple machines: For example, wedge, and lever.

    asked by Anonymous on January 13, 2007
  20. english

    Does anyone have any ideas for an UNpersuasive essay? Instead of doing a normal essay, my class is doing an essay on anything that's crazy that people would normally not believe but if I use facts and other information, maybe they might believe me. I

    asked by Jennie on May 27, 2009
  21. Art World Culture

    1.)Inventors often work to find faster, more efficient ways of completing a task. How did Samuel F.B. Morse use his artistic ingenuity to create a more efficient telegraph machine? A.)by using higher quality wires B.)by using more wires and background

    asked by #FreeGucci on May 18, 2016
  22. physics

    A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.00 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the mechanical advantage of

    asked by Rachel on March 20, 2013
  23. physics

    a man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 2.50 m and the distance from the fulcrum to the load is 0.500 m. A graph of resistance force vs. effort force is shown. What is the mechanical advantage of

    asked by archie on March 9, 2018
  24. Mathematics, Math

    During a period of acute shortage of raw materials, the prices of some manufactured goods were raised by 25%. After the shortage was over, prices were lowered by 15%. If the original price of an article was $56, find its price after the shortage was over.

    asked by Kaela on February 28, 2012
  25. Mathematics, Math

    During a period of acute shortage of raw materials, the prices of some manufactured goods were raised by 25%. After the shortage was over, prices were lowered by 15%. If the original price of an article was $56, find its price after the shortage was over.

    asked by Kaela on February 28, 2012
  26. Physical Science

    Two parallel transmission wires are laid between electrical towers. The distance between towers is 200 m, while the separation between the parallel wires is only 2.5 m. If the wires carry each a current of 1000 A, the magnitude of the force between the

    asked by Stephanie on March 11, 2010
  27. Maths

    Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the lengths of the wires

    asked by mishael on September 5, 2017
  28. chs

    Two wires support an electricity pole. if the wires make angles of 58°and 67° with the ground and |AB|=21m, calculate the lengths of the wires

    asked by peter on August 16, 2015
  29. physics

    Three wires are arranged in an equilateral triangle as shown in the figure below. The lower two wires are 4.00 apart. Assume all the wires are 1.35 long for this problem (extending into the screen).

    asked by Anonymous on May 19, 2013
  30. physics

    A bag of cement of weight 300 N hangs from three wires. Two of the wires make angles θ1 = 50.0° and θ2 = 28.0° with the horizontal. Assuming the system is in equilibrium, find the tensions in the wires.

    asked by Ashley on January 7, 2010
  31. SCIENCE!!

    what is a fulcrum, the effort and the load? also what is a Class 1 lever, Class 2 lever, and Class 3 lever? plz helpp! thanks:)

    asked by beeca on February 8, 2009
  32. trig

    Four wires support a 40-meter radio tower. Two wires are attached to the top and two wires are attached to the center of the tower. The wires are anchored to the ground 30-meters from the base of the tower.

    asked by Tina on February 26, 2013
  33. Physical science

    A simple lever is used to lift a heavy load. When a 58-N force pushes one end of the lever down 1.1 m the load rises 0.14 m. How much work is done by the 58-N force? What is the gain in potential energy of the load? How does the work done compare to the

    asked by Jennifer on September 14, 2016
  34. trig

    A pole is braced by two wires that extended from the top of the pole to the ground. The lengths of the wires are 16 feet and 18 feet and the measure of the angle between the wires is 110 degrees. Find, to the nearest foot, the distance between the points

    asked by Anonymous on April 21, 2013
  35. Statistics

    Volunteers for a human performance study were randomly divided into two groups. The first group had their flexibility measured in the morning after a short meditation session while the second group had their flexibility measured in the afternoon with no

    asked by Anonymous on February 12, 2018
  36. english

    A project design has been approved by management. The engineering team is about to start production of the new line. I want to be sure this process goes by smoothly. I need to come up with a communication plan to address successful development and delivery

    asked by karen on August 2, 2010
  37. English

    1. He raised his right hand a little. 2. He raised his right hand a bit. 3. He raised his right hand slightly. 4. He raised his right hand a lot. 5. He raised his right hand much. 6. He raised his right hand a little. 7. He raised his right hand just a

    asked by rfvv on September 15, 2015
  38. design

    In an effort to promote a better understanding of what design is and how to discuss it, your firm is having a weekly series of meetings. Within your first week, please find a design to include in your presentation that is different than the material you

    asked by sue on November 15, 2008
  39. Physics

    Could a simple machine such as a lever, a pulley system or a hydraulic jack be considered a heat engine?

    asked by Sylvia on December 28, 2010
  40. Physics

    1.For the following simple see-saw calculate: 1. the load that could be lifed, 2. the maechanical advantage (assume the lever is 100% efficient).

    asked by Eleni on March 6, 2015
  41. psychology

    The matching law practice question Lever A: 1 food pellet on a VI 48s schedule Lever B: 1 food pellet on a VI 30s schedule Session Length = 2 hours Total # Responses = 925 How many responses on Lever A?

    asked by K.B on July 19, 2011
  42. AP Statistic question

    A new type of fish food has become available for salmon raised on fish farms. Your task is to design an experiment to compare the weight gain of salmon raised over a six-month period on the new and the old type of food. The salmon you will use for this

    asked by Miu on April 28, 2009
  43. AP Statistic question

    A new type of fish food has become available for salmon raised on fish farms. Your task is to design an experiment to compare the weight gain of salmon raised over a six-month period on the new and the old type of food. The salmon you will use for this

    asked by Miu on April 28, 2009
  44. physics

    Calculate the energy in kcal used by a 53-kg woman who does 55 deep knee bends in which her center of mass is lowered and raised 0.400 m. (She does work in both directions.) You may assume her efficiency is 20%.

    asked by Mary Katheryn on April 23, 2014
  45. physics

    A bag of cement of weight 325N hangs from wires as Shawn. Two of the wires make angels al=60 degrees a2=50 degrees with the horizontal. If the system is in equilibrium find the tension T1, T2 and T3 in the wires.

    asked by Chansa on May 4, 2016
  46. integrated physics and chemistry

    If the torques on a lever are not equal, the lever will rotate about the fulcrum. i cant find the answer to this anywhere in the lesson. it is a true/false statement. can someone help me?

    asked by Nella on January 12, 2011
  47. physics

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by rohit on March 30, 2013
  48. Physics/math

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by Jack on March 25, 2013
  49. Physics/math

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by Jack on March 25, 2013
  50. Physics

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by Gurudev on March 27, 2013
  51. Physical science

    Describe how to determine the ideal machanical advantage of each type of simple machine How are the lever and the wheel and axle related?

    asked by Angelina on February 3, 2016
  52. Physics

    Two parallel wires carry 1-A currents in unknown directions. The distance between the wires is 10-cm. What is the magnitude of the magnetic field B in Teslas at a point P located 6-cm away from the axis of one of the wires and 8-cm away from the axis of

    asked by Steve on March 27, 2013
  53. physics

    If a 100 kg adult sits on a first class lever 2 meters away from the axis of rotation...how far back do I need to sit (145 lbs) to balance the lever?

    asked by Anonymous on October 26, 2012
  54. computers

    You’re asked to design a network for use in a training environment. It should be mobile, easy to set up, and simple tear down. Speed is not an issue. Develop a network design that accommodates these requirements and keeps costs down.

    asked by Anonymous on March 31, 2010
  55. Clark/Networking

    You’re asked to design a network for use in a training environment. It should be mobile, easy to set up, and simple to tear down. Speed is not an issue. Develop a network design that accommodates these requirements and keeps costs down.

    asked by Merrie on February 17, 2011
  56. niit

    you are asked to design a network for use in a training environment.It should be mobile,easy to set up, and simple to tear down.Speed is not an issue.Develop a network design that accommodates these requirements and keeps cost down.

    asked by eben on July 31, 2010
  57. biomechanics

    If a 100 kg adult sits on a first class lever 2.3 meters away from the axis of rotation...how far back do I need to sit (145 lbs) on the other side to balance the lever?

    asked by Anonymous on October 24, 2013
  58. Physics

    Consider a lever rod of length 7.96 m, weight 71 N and uniform density. The lever rod is pivoted on one end and is supported by a cable attached at a point 1.74 m from the other end:  The lever rod is in equilibrium at angle of

    asked by c on January 23, 2018
  59. Physics

    Two parallel, uniformly charged, infinitely long wires carry opposite charges with a linear charge density ? = 5 £gC/m and are 8 cm apart. What is the magnitude and direction of the electric field at a point midway between them and 49 cm above the plane

    asked by Long on February 17, 2012
  60. physics

    Two identical wires with resistance,R and mass,m rest on two smooth parallel superconducting (zero resistance) rails. Initially, they are separated by a distance,D=70 cm. Suddenly, a uniform magnetic field B, perpendicular to the plane of the rails is

    asked by tsong on April 28, 2013
  61. English

    1. She held out her hand. 2. She extended her hand. --------- Are both the same? Can we use some other expressions instead of 'held out'? 3. It's been such a long time. 4. It's been so lone a time. --------------------------- What does 'It' refer to here?

    asked by rfvv on August 23, 2014
  62. Math

    A manufacturer samples 100 wires for quality testing. Four of the wires are found to be defective. If 750 wires are produced in one hour, how many should the manufacturer expect to be defective? A.30 B.60 C.75 D.96

    asked by Candy on April 30, 2014
  63. Physics (Urgent Please!)

    Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other? (b) At a point far away from the wires, do their individual

    asked by Marie on April 17, 2012
  64. Physics

    Two parallel wires conduct equal currents in the same direction. (a) At a point in the plane of the wires midway between them, do the individual fields of the wires cancel or reinforce each other? (b) At a point far away from the wires, do their individual

    asked by Brittany on April 17, 2012
  65. Algebra 1

    The weight needed to balance a lever varies inversely with the distance from the fulcrum to the weight. A 120-lb weight is placed on a lever, 5 ft from the fulcrum. What amount of weight, in pounds, should be placed 8 ft from the fulcrum to balance the

    asked by Help on May 2, 2018
  66. k

    Two wires parallel to each other and separated by a distance d carry different currents; they exert a force with magnitude F on each other. (a) The wires carry current in opposite directions. If the current carried by both wires is divided by five and the

    asked by physics on April 15, 2013
  67. Trig

    Four wires support a 40-meter radio tower. Two wires are attached to the top and two are attached to the center of the tower. The wires are anchored to the ground 30-meters from the base of the tower. What is the total length of wire needed?

    asked by Tina on February 26, 2013
  68. physics

    a lever is 5 m long. The distance from the fulcrum to the weight to be lifted is 1 m. If a 3000 N rock is to be lifted, how much force must be excerted on the lever?

    asked by lulu on January 22, 2009
  69. Physical science

    If you use a 29m second-class lever to lift a 1000 N load exactly in the middle of the lever, and you lift the lever 1.5m high, how high do you lift the load?

    asked by Ainsley on December 18, 2016
  70. House/ Crate training (dogs)

    please check my answer thanks Which one of the following factors contributes to the saftey of a puppy or a dog that's crated in a wire cage A diameter of the wires B deimensions of the crate C weight of the crate D distance between wires I picked D because

    asked by Helana on June 27, 2008
  71. Physics

    A street lamp weighs 150 N. It is supported by two wires that form an angle of 140° with each other. The tensions in the wires are equal. (a) What is the tension in each wire? (b) If the angle between the wires is reduced to 110°, what is the tension in

    asked by Khadija on February 11, 2014
  72. physics

    A lever has a Mechanical Advantage of 13. How much force would the lever exert if you push with a 200N force?

    asked by Emily on December 11, 2011
  73. science

    When there is a lot of friction in a machine, what is lowered and causes mechanical efficiency to be lowered

    asked by antiana on October 21, 2016
  74. engineering

    A lever is used to lift a heavy load. A 50 N force pushes one end of the lever down 1.2 m and the load rises 0.2 m. Calculate in weight of the load. Neglect friction

    asked by zahit on October 16, 2015
  75. Physics (mechanics)

    A u-control airplane of mass m is attached by control wires of length L and negligible mass to the "pilot" who controls the lift provided by the wing FL. The wires control the plane's elevator or angle of attack. The plane's engine keeps it moving at

    asked by JK on July 9, 2013
  76. Trig

    To help a young tree grow straight, a gardener attaches three guy wires to it and the ground. She places the wires two feet below the top of the tree. If the wires are ten feet long and each makes an angle of 58 degrees with the ground. Find the height of

    asked by Allen on May 8, 2017
  77. trig ratios'

    To help a young tree grow straight, a gardener attaches three guy wires to it and the ground. She places the wires two feet below the top of the tree. If the wires are ten feet long and each makes an angle of 58 degrees with the ground. Find the height of

    asked by Tony on May 8, 2017
  78. College Physics II

    A steel wire and a copper wire, each of diameter 2.000 mm, are joined end to end. At 48.0°C, each has an unstretched length of 2.000 m. The wires are connected between two fixed supports 4.000 m apart on a tabletop. The steel wire extends from x =

    asked by Andrew on September 3, 2013
  79. program planning

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X= program, O=Observation, R=random assignment. For each design, please discuss all threats to internal validity. 1. Design:

    asked by jessica on October 27, 2013
  80. program planning and evaluation

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X = program, O=observation, R= random assignment). For each design, please discuss all threats to internal validity. 1. a.

    asked by ihuoma okoro on January 29, 2012
  81. program planning and evaluation

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X = program, O=observation, R= random assignment). For each design, please discuss all threats to internal validity. 1. a.

    asked by ihuoma okoro on January 29, 2012
  82. Program Planning

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X= program, O=Observation, R=random assignment. For each design, please discuss all threats to internal validity. 1. Design:

    asked by Anna on April 27, 2009
  83. Program planning and evaluation

    Please respond to the following questions either by writing the design name or by describing the design using standard notation (X = program, O=observation, R= random assignment). For each design, please discuss all threats to internal validity. 1. a.

    asked by me on May 1, 2011
  84. science

    A drinking glass at a crime scene contains a clear colorless liquid that may be water or alcohol. As the investigator, you know that the densities of alcohol, water, and ice are 0.79g/mL, and 0.92/mL. Design a simple method to determine the identity of the

    asked by Brianna on September 16, 2014
  85. English

    1. One dancer had (risen, raised) a snake above his head for the crowd to see. 2.The growing corn (rises, raises) high in the Hopi country of Arizona. 3.In a moment, dad had (rose, raised) his hat to shade my face from the sun. 4.How long has it (laid,

    asked by Hayden on February 2, 2011
  86. trig

    To help a sapling (young tree) grow straight, a gardener attaches three guy wires to it and the ground. She places the wires two feet below the top of the tree. If the wires are ten feet long and each makes an angle of 58 degrees with the ground, find the

    asked by Tony on May 8, 2017
  87. Explanation of Maths Question

    Can someone please explain what does these questions mean? Design a wine glass that uses at least 5 different equations to form the outline of the shape. At least half of your equations must be curves. It is easier if the design is done with the glass on

    asked by Nina on July 29, 2012
  88. science

    suppose you have to wires of equal length made from the same materials. how is it possible for the wires to have different resistance

    asked by keyondest on September 3, 2013
  89. Physics

    Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is

    asked by asif on April 25, 2011
  90. Physics

    Two parallel wires carry currents in the same direction. I1=3A and I2=1A and the distance between the conductors is 4 cm. The magnetic field midway between these two wires is

    asked by asif on April 25, 2011
  91. Physics

    Suppose two conducting wires each of mass 25g and length 40m are both hanging from a support beam. When the circuit is turned on, the wires repel each other so that the angle between the supporting strings is 30 degrees at a height 5cm below the support

    asked by M on May 7, 2015
  92. Physics

    A street lamp weighs 158 N. It is supported equally by two wires that form an angle of 107˚ with each other. What is the tension of each of these wires?

    asked by Lynn on July 2, 2013
  93. Physics ||

    Q.1. Two wires each of length 40 m and diameter 2.6 mm, are connected in series. A potential difference of 50 V is applied between the ends of the composite wire. The resistances the wires are 0.13 Ω and 0.75 Ω, respectively. Determine: i) the current

    asked by Meemee.meme on June 4, 2014
  94. Maths

    A communications tower has many guy wires supporting it. Two of these guy wires are 10.0 m and 8.0 long. They are attached at the same point on the ground. The longer wire has an angle of inclination of 60 degrees. a) How far from the base of the tower are

    asked by Anonymous on November 18, 2014
  95. physics

    Can you get more force out of a lever than you put in? Can you get more work out of a lever than you put in. Explain

    asked by Anonymous on October 15, 2008
  96. Technology~bobpursley

    25. Briefly explain the difference between product design and system design. 25. There are a few differences between system design and product design. System design deals with the arrangement of components to produce a desired result. For example,

    asked by y912f on April 7, 2010
  97. physics

    Two long parallel wires carry currents of 10 A in opposite directions. they are separated by 40 cm. what is the magnetic field in the plane of the wires that is 20 cm from one wire and 60 cm from the other?

    asked by manisha on May 25, 2010
  98. Physics

    A street lamp weighs 160 N. It is supportedequally by two wires that form an angle of 119 with each other. What is the tension of each of these wires? Answer in units of N

    asked by Sarah on November 13, 2012
  99. Physics

    Three wires lie in a plane, placed parallel to one another and equally spaced by 0.20 m. If the wires are oriented up and down on the page, the right-hand wire carries 100 A to the top, the middle wire 300 A to the bottom, and the left-hand wire carries

    asked by Anonymous on March 17, 2016
  100. physics

    A bag of cement of weight 370 N hangs from three wires Two of the wires make angles è1 = 58.6° and è2 = 23.8° with the horizontal. If the system is in equilibrium, calculate the tension T1.

    asked by Vishnu on October 11, 2008