1. Math

    Find the surface area of the prism, The right side length is 5m the bottom side lenght is 6m and the actual bottom is 13m. Answers are, A 48 to the second power. B 346 to the second power. C 780 to the second power. D 195 to the second power. ** Please

    asked by Likewhat?! on March 28, 2019
  2. physics

    Television sets sometimes use a "rabbit-ears" antenna. A rabbit-ears antenna consists of a pair of metal rods. The length of each rod can be adjusted to be one-fifth of a wavelength of an electromagnetic wave whose frequency is 60.0 MHz. How long is each

    asked by bill on March 6, 2008
  3. physics

    Two conductors are made of the same material and have the same length. They each have circular cross sectional areas. The ratio of their radii is 2:1. they carry the same current. What is the ratio of the electrical potential across their lengths? i know

    asked by bobby on April 22, 2009
  4. College Algebra and Trigonometry

    Two guys wires for a radio tower make angles with the horizontal of 50 degree and 49 degree. If the ground anchors for each wide are 150feets apart, find the length of each wire assuming the wires are straight and find the height of the tower?

    asked by Julani on November 5, 2012
  5. CALCULUS

    1. A rectangular package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 108 inches. Find the dimensions of the package of maximum volume that can be sent. (Assume the cross section is square.)

    asked by Please HELP on October 17, 2014
  6. Algebra

    Any and all help would be greatly appreciated. I'm trying to help my niece and I'm afraid that it is not possible. The volume of a cubic container is x^3 cubic inches. The height of the container was decreased and the length was increased so that the

    asked by Ronald on November 30, 2009
  7. Physics

    A uniform beam of weight 520 N and length 3.4 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N.

    asked by Ray on October 28, 2009
  8. Physics

    A uniform beam of weight 520 N and length 3.4 m is suspended horizontally. On the left it is hinged to a wall; on the right is it supported by a cable bolted to the wall at distance D above the beam. The least tension that will snap the cable is 1200 N.

    asked by Ray on October 28, 2009
  9. mah

    holly spend 7 and 3/5 hours in school each day. her lunch period is 1/2 hour long, and she spends a total of 7/10 hour switching rooms between classes.the rest of her day is spent in 6 classes that are all same length. how long is each class?

    asked by rose on January 7, 2015
  10. physics

    A pole AB of length 10m and weight 600N has its centre of gravity 4m from the end A, and lies on horizontal fround.calculate the force required to begin to lift the end.why would this force applied at the end A,not be sufficient to lift the end A?

    asked by benjieo on June 12, 2014
  11. mah

    holly spend 7 and 3/5 hours in school each day. her lunch period is 1/2 hour long, and she spends a total of 7/10 hour switching rooms between classes.the rest of her day is spent in 6 classes that are all same length. how long is each class?

    asked by jessica on January 7, 2015
  12. Math

    This is the layout of the McDougal's backyard.The scale is 1 centimeter to 5 meters.The length of the deck on the layout is 7 centimeters.The width of the deck on the deck is 2 centimeters. What is the actual perimeter of the deck? Pls answer within the

    asked by Elizabeth on October 26, 2009
  13. Calc

    A rectangular package to be sent by a postal service can have a maximum combined length and girth (perimeter of a cross section) of 90 inches (see figure). Find the dimensions of the package of maximum volume that can be sent. (Assume the cross section is

    asked by James on November 3, 2016
  14. Math

    Billy is riding on a 20 meter diameter Ferris wheel that is making 3 revolutions per minute. What are your linear velocity and your angular velocity? If there are 8 equally spaced seats on the ferris wheel then what is the length of the arc between two

    asked by Shinku on May 9, 2014
  15. Algebra

    The floor of a one-story building is 14 feet longer than it is wide (see figure). The building has 1472 square feet of floor space. a) Write a quadratic equation for the area of the floor in terms of w. (b) Find the length l and width w of the floor.

    asked by Kristi on September 2, 2012
  16. calculus

    A 5.5 foot tall woman walks at 6ft/s torward a street light that is 16.5 ft above the ground. what is the rate of change of the length of her shadow when she is 14ft from the street light? At what rate is the tip of her shadow moving? How do I get the

    asked by Anon on April 14, 2016
  17. math

    A rectangular building measures 64′ in length and 32′ in width. If the wall studs will be spaced at 16″ OC, what would be the total number of studs needed for the exterior wall of this building? A. 186 B. 212 C. 204 ***D. 192 I believe the answer to

    asked by doug on December 8, 2018
  18. PRE-CALC

    A large painting in the style of Rubens is 3 feet longer than it is wide. If the wooden frame is 12 in wide and the area of the picture frame is 208 ft^2, find the dimensions of the painting. So I know the width would be x and the length would be x+3 if I

    asked by Muffy on October 16, 2009
  19. Statistic

    Examining the location of accidents on a level, 3-mile bike path shows that they occur uniformly along the length of the path. This figure Uniform density curve. displays the density curve that describes the distribution of accidents.

    asked by Anonymous on October 3, 2014
  20. Geometry

    Problem: ABCDE$\ is an equilateral pentagon with side length 2 in which angle B= angle E=120 degrees. The area of ABCDE can be expressed in the form square root of x + square root of y for some integers x and y. Find x+y. I don't understand. I really need

    asked by AJ on January 29, 2017
  21. Analytic Geometry - lengths?

    Square ABCD has sides of length 4, and M is the midpoint of CD . A circle with radius 2 and center intersects a circle with radius 4 and center A at points P and D . What is the distance from P to AD? Please help - I drew the diagram, but looks kinda

    asked by Knights on April 4, 2013
  22. physics

    an object is placed 15 cm in front of a convex lens of focal length 10cm. Find the nature and position of the image formed. where should a concave mirror of radius of curvature 20cm be placed so that the final image is formed at the position of the object

    asked by meenakshi on March 9, 2015
  23. Physics

    A ladder of length 10m and weight 200N leans against a smooth wall such that its at an angle of 60 degrees to the horizontal. A boy of weight 500N stands on d ladder at 2.5m of the way from the lower end of the ladder. Calculate the normal reaction at the

    asked by Faith on December 30, 2015
  24. Physic please help!

    A piece of copper wire is formed into a single circular loop of radius 13 cm. A magnetic field is oriented parallel to the normal to the loop, and it increases from 0 to 0.70 T in a time of 0.45 s. The wire has a resistance per unit length of 3.3 10-2 /m.

    asked by Mary on October 9, 2007
  25. Math (need formula)

    I would be very appreciative if someone could provide me with the formula I would use to plug these figures into a graph. 3. A 2m length of board rests with one end on the floor and the other end on a small stack of bricks. A baseball is rolled up the

    asked by Noel on May 16, 2012
  26. Pre-Calculus

    Solve the triangle. Round to the nearest tenth. B=54deg a=42 c=6.5 1. I found length of b using law of cosine and got 36.2 2. Using side of b, I used the law of sine to get angle A = 28.2 3. I added B+A and subtracted from 180 to get angle C = 127.8 which

    asked by Vincent on December 7, 2009
  27. Physics

    The moment of inertia of a solid uniform sphere of mass M and radius R is given by the equation I=(2/5)MR2 . Such a sphere is released from rest at the top of an inclined plane of height h, length L, and incline angle è. If the sphere rolls down the

    asked by Anonymous on April 7, 2011
  28. math

    The length of an open-top box is 4 cm longer than its width. The box was made from a 480-cm^2 rectangular sheet of material with 6cm by 6cm squares cut from each corner. The height of the box is 6cm. Find the dimensions of the box. Please show me in detail

    asked by Jane on April 21, 2012
  29. Physics

    A 66 kg bungee jumper jumps from a bridge. She is tied to a bungee cord whose unstretched length is 14 m, and falls a total of 34m. 1. Calculate the spring stiffness constant of the bungee cord, assuming Hooke's law applies. 2. Calculate the maximum

    asked by Nick on November 1, 2010
  30. Physics

    Two point charges +Q and -Q of mass m are placed on the ends of a massless rod of length L, which is fixed to a table by a pin through its center. If the apparatus is then subjected to a uniform electric field E parallel to the table and perpendicular to

    asked by Haha on July 25, 2018
  31. Physics

    A piece of copper wire is formed into a single circular loop of radius 13 cm. A magnetic field is oriented parallel to the normal to the loop, and it increases from 0 to 0.70 T in a time of 0.45 s. The wire has a resistance per unit length of 3.3 10-2 /m.

    asked by Mary on October 4, 2007
  32. geometry

    A street that is 155m long is covered in snow. City workers are using a snowplow to clear the street. The snowplow has tires that are 1.5m in diameter. How many times does a tire have to turn in traveling the length of the street? Use the value 3.14 for π

    asked by lisa on July 16, 2015
  33. Math Nightmare

    I need help The design of a new airplane requires a gasoline tank of constant cross-sectional area in each wing. A scale drawing of a cross section is shown here. The tank must hold 5000lb of gasoline, which has a density of 42 lb/ft3. Estimate the length

    asked by Fabian on March 13, 2008
  34. physics

    A pendulum clock has a pendulum shaft made of aluminum which has a coefficient of linear expansion of 24.0*10^-6K^-1. At 22 degrees celsius the period of the swing of the pendulum is 1.00seconds. If the temperature is reduced to 5 degrees celcius, how much

    asked by dan on November 26, 2016
  35. Ap physics b

    A piece of copper wire is formed into a single circular loop of radius 11 cm. A magnetic field is oriented parallel to the normal to the loop, and it increases from 0 to 0.65 T in a time of 0.45 s. The wire has a resistance per unit length of 3.3 10-2 /m.

    asked by christina on April 6, 2011
  36. Physics II

    A copper rod of length 0.83 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring whose spring constant is k = 79 N/m. A magnetic field with a strength of 0.13 T is oriented

    asked by Mareena on February 12, 2012
  37. College Physics

    One end of a 14 m long wire having a total mass of .8000 kg is fastened to a fixed support in the ceiling, and a 7.50 kg object is hung from the other end. If the wire is struck a transverse blow at one end, how much time does the pulse take to reach the

    asked by Jen on November 1, 2007
  38. Physics

    A 2.1 kg mass is connected to a spring with spring constant k= 180 N/m and unstretched length 16 cm. The pair are mounted on a frictionless air table, with the free end of the spring attached to a frictionless pivot. The mass is set into circular motion at

    asked by Courtney on February 21, 2013
  39. Math

    For small paving jobs, a contractor uses a roller pushed by a worker. A roller pushed by a worker (radius=8 in; length=30 in.) To the nearest square inch, what is the area of pavement with which the surface of the roller will come into contact in one

    asked by Tehila on April 22, 2010
  40. Math

    a rope dancer was walking on a loose rope tied to the top of two equal post of height 9m. when he was 3m above the ground, it was found that stretched pieces of roop made angle of 30 degree and 60 degree with the horizontal line parallel to the ground.

    asked by Akash on January 25, 2018
  41. Algebra

    Which of the following statements from Euclidean geometry is also true of spherical geometry? A) A line has infinite length. B) Two intersecting lines divide the plane into four regions. C) Two perpendicular lines create four right angles. D)The

    asked by Heather on October 17, 2011
  42. physics

    ok it says a shopper in a supermarket pushes a cart with a force of 36N directed at an angle of 26 degrees downward from the horizontal. find the work done by the shopper on the cart as the shopper moves along a 50.6m length of aisle. answer in units of J.

    asked by Claudia on November 1, 2008
  43. physics help

    A uniform plank of length 5.1 m and weight 235 N rests horizontally on two supports, with 1.1 m of the plank hanging over the right support (see the drawing). To what distance x can a person who weighs 458 N walk on the overhanging part of the plank before

    asked by nadia on November 27, 2010
  44. physics

    A 53.6 kg circus performer bobs up and down at the end of a long elastic rope at a rate of once every 2.80 s. The elastic rope obeys Hooke's law. Find how much the rope is extended beyond its unloaded length when the performer hangs at rest. ** I think Im

    asked by emily on November 28, 2012
  45. math

    A car skids to a stop, leaving four skid marks with an average length (D) of 60 feet. The road is asphalt. Skid tests reveal a drag factor(f) of 0.75. Since all four wheels were braking, the braking efficiency (n) is 100% or 1.00. To the nearest mile per

    asked by Matthew on October 2, 2018
  46. physic

    In Concept Simulation 10.2 you can explore the concepts that are important in this problem. Astronauts on a distant planet set up a simple pendulum of length 1.2 m. The pendulum executes simple harmonic motion and makes 100 complete oscillations in 330 s.

    asked by nada on January 20, 2014
  47. Anatomy

    Graded potentials are: arise when ion movement causes a minor change in the resting membrane potential. usually propagate down the length of an axon. occur when voltage-gated channels open. are most often observed in axons. are usually associated with ion

    asked by Shannon on November 9, 2014
  48. Math

    A cart full of packages weighing 180 pounds is rolling down a ramp 12 feet long at an incline of 25° (the force applied by gravity is equal to the weight of the package). Find the work done by gravity as the cart moves the length of the ramp. Assume that

    asked by Elise on January 17, 2017
  49. Mechanical behavior

    An atomic force microscope cantilever, of rectangular cross section, has a length, l, of 200μm, a width, b, of 20μm and a depth, h, of 1μm. It is made of silicon nitride, which has a Young's modulus, E, of 300GPa. What is the maximum force that can be

    asked by please HELP on November 11, 2015
  50. MaTH Question

    Write an equation for the problem & solve. There are 500 cm of trim to frame a banner. The banner is 22cm wide. How long can it be? Thanks you so much 500 x 22 = 11000 ( this gives you area) Then multiply 11000 by 2 because there are 2 sides of length.

    asked by Aubrey on November 24, 2006
  51. Algebra 104

    1. A square piece of cardboard measuring 60 inches on a side is made into a rectangular box by cutting identical squares from the four corners and then folding up the flaps. Let represent the length of the side of the discarded square. Write a formula for

    asked by Corey on May 13, 2015
  52. algebra

    A rancher has 4 comma 7004,700 feet of fencing available to enclose a rectangular area bordering a river. He wants to separate his cows and horses by dividing the enclosure into two equal areas. If no fencing is required along the​ river, find the length

    asked by Janice on June 22, 2015
  53. Mechanical behavior

    An atomic force microscope cantilever, of rectangular cross section, has a length, l, of 200μm, a width, b, of 20μm and a depth, h, of 1μm. It is made of silicon nitride, which has a Young's modulus, E, of 300GPa. What is the maximum force that can be

    asked by HELP on November 8, 2015
  54. Mechanical Behavior of Materials

    An atomic force microscope cantilever, of rectangular cross section, has a length, l, of 200μm, a width, b, of 20μm and a depth, h, of 1μm. It is made of silicon nitride, which has a Young's modulus, E, of 300GPa. What is the maximum force that can be

    asked by zxcv on November 8, 2014
  55. math, science

    An atomic force microscope cantilever, of rectangular cross section, has a length, l, of 200μm, a width, b, of 20μm and a depth, h, of 1μm. It is made of silicon nitride, which has a Young's modulus, E, of 300GPa. What is the maximum force that can be

    asked by HELP on November 8, 2015
  56. physics

    a uniform meter rod AB of mass 80g and 0.1m length is supported by knife edges placed 15.0cm frim its ends. What will be the reactions a5 these support when 20kg mass is suspended 10cm from the mid point of the rod towards A and a vertical upward force of

    asked by BIZHATOCOTO on April 11, 2019
  57. physics

    If the coefficient of static friction is 0.350, and the same ladder makes a 64.0° angle with respect to the horizontal, how far along the length of the ladder can a 71.9-kg painter climb before the ladder begins to slip? The same ladder is 46.7 Newtons in

    asked by heather on October 23, 2010
  58. Algebra

    A manufacturer of shipping boxes has a box shaped like a cube. The side length is (5a + 4b). What is the volume of the box in terms of a and b? Show your work. (5a+4b)^3 =(5a+4b)(5a+4b)(5a+4b) =(25a2+40ab+16b2)(5a+4b) = 125a^3 + 100a^2b + 200a^2b + 160ab^2

    asked by Alexa on February 17, 2016
  59. physics

    A piano tuner stretches a steel piano wire with a tension of 765 N. The steel wire has a length of 0.400 m and a mass of 3.00 g. What is the frequency f_1 of the string's fundamental mode of vibration? What is the number of the highest harmonic that could

    asked by Anonymous on April 19, 2010
  60. Geometry

    The side length of square ABCD is 1 unit. Its diagonal, AC, is a side of square ACEF. Square ACEF is then enlarged by a scale factor of 2. What is the area of the enlargement, in square units?

    asked by Kayla on March 27, 2012
  61. calculus

    How many gallons of gas is in a cylindrical tank (that is laying on it’s side, the circular bases are vertical, the diameter of the bases are 5 feet, the length of the tank is 8 feet, the gas is at a 2 ft level)?

    asked by Ann on December 9, 2012
  62. Physics

    The Space Shuttle travels at a speed of about 5.05 x 103 m/s. The blink of an astronaut's eye lasts about 93.5 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

    asked by Garren on September 10, 2015
  63. Math

    carlos can throw a ball 14 yards . His friend raul can throw 3/7 of that distance. Is rauls throw longer or shorter than 14 yards? Now find the exact length of Raul's throw.

    asked by May on November 30, 2016
  64. Math-Calculus

    a spring has a natural length of 20meters. a) find the work required to stretch the spring from 20m to 30m b) from 30m to 40m c) how is the work from part a and part b related?

    asked by zaxoanl on January 18, 2016
  65. science

    A description of climate at a particular location would be different than a description of a weather. This is mainly because of the time peiod that is being considered. how do the length of time periods beign referenced in descriptions of climate and

    asked by Anonymous on May 15, 2009
  66. algebra

    what is the perimeter of a triangle-like shape with sides that are: sqrt5 - sqrt3 sqrt5 + sqrt3 4 Add the three side length numbers to get the triangle perimeter. Looks like the sqrt 3 terms will cancel out

    asked by kris on June 29, 2007
  67. math

    the square tile shown has a length of 10.5 inches. What power can you write to represent the are of the tile? Write the power as an expression with a base and an exponent, and then find the area of the square.

    asked by suzie on November 16, 2015
  68. Math

    Towns A to F are to be connected by cable along existing roads. Need to figure the minimum length of cable required. Eash town must be connected to at least one other town. Distances are in miles. A-B 20, A-E 71, A-F 38, B-A 20, B-C 58, B-E 62,C-B 58, C-D

    asked by Cassidy on March 16, 2014
  69. Physics

    A 100.0 cm long brass rod is heated from 20 degrees C to a final temp of 100 degrees C. Find the change in the length of the rod. (a-19.0x10^-6/degree for brass)

    asked by Lashawn on April 24, 2013
  70. Physics

    A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor? 0.73 Tesla 6.60 Tesla 0.34 Tesla 0.61 Tesla

    asked by Anonymous on October 25, 2012
  71. Physics

    Two wires have the same length and the same resistance but are made up of different materials. The resistivities of these materials are 3.97 Ù and 1.97 Ù. Obtain the ratio of the smaller cross-sectional area to the greater cross-sectional area.

    asked by Beth on June 13, 2012
  72. math

    The area of a square plot of land is 1156m2. The plot is to be fenced with three strands of wire. What is the length of the wire that is needed? Area = S2 √1156 = S S=34 P = 4s = 136 = 136(3) = 408

    asked by kudu on March 17, 2015
  73. Physics

    A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor? 0.73 Tesla 6.60 Tesla 0.34 Tesla 0.61 Tesla

    asked by Anonymous on October 24, 2012
  74. Geometry

    A rectangular pyramid fits exactly on top of a rectangular prism. Find the volume of the composite space figure if the prism has length 19 cm, width 2 cm, height 11 cm, and the pyramid has height 7 cm.

    asked by Lex on May 21, 2012
  75. math

    Two sides of a triangle have lengths 15 m and 18 m. The angle between them is decreasing at a rate of 0.08 rad/s. Find the rate at which the area of the triangle is changing when the angle between the sides of fixed length is 120°.

    asked by christina on October 20, 2013
  76. PHYSICS

    a 10cm long spring is attached to the ceiling. when a 2.6kg mass is hung from it, the spring stretched to a length of 15cm. what is the spring constant k how long is the spring when a 4.0 kg mass is suspended from it

    asked by Kate on June 30, 2011
  77. physics

    The Space Shuttle travels at a speed of about 5.05 x 103 m/s. The blink of an astronaut's eye lasts about 94.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

    asked by kyle on February 3, 2014
  78. Physics

    A conductor of length 2m carrying a 1.5A current experiences a force of 2.2 N. What is the magnitude of the magnetic field that acts perpendicular to the flow of current in the conductor? 0.73 Tesla 6.60 Tesla 0.34 Tesla 0.61 Tesla

    asked by Anonymous on October 23, 2012
  79. Math

    emma throws the javelin for the track team. At one meet she threw the javelin twice. One the first attempt she three 28 meter and on the second attempt she threw 32 meters. What is the ratio between the length of the first throw and the second throw?

    asked by TootiE on May 1, 2013
  80. math

    Keri walks her dog every morning. The length of the walk is 0.55 on each weekday. On each weekend day, the walk is 1.4 times as long as a walk on a weekday. How many kilometers did Keri walk in one week

    asked by ash on October 1, 2015
  81. Physics

    The Space Shuttle travels at a speed of about 9.11 x 103 m/s. The blink of an astronaut's eye lasts about 93.4 ms. How many football fields (length = 91.4 m) does the Space Shuttle cover in the blink of an eye?

    asked by Briana on September 10, 2013
  82. physics

    a constant force can at on an object for diferrent lengths of time. as the length of time the force acts increases, the impulse imparted to the object increases decreases remians the same

    asked by john on January 5, 2011
  83. pre calculus

    How many gallons of gas is in a cylindrical tank (that is laying on it’s side, the circular bases are vertical, the diameter of the bases are 5 feet, the length of the tank is 8 feet, the gas is at a 2 ft level)?

    asked by Anonymous on December 8, 2012
  84. Pre-Calc

    write the equation for an ellipse with y intercepts (0,-3) and (0,3) and the major axis of length 10. major axis is 10=2a so that makes a=5. I believe my equation is x^2/b^2 + y^2/a^2 = 1 I am assuming b is 3 because of the y-intercept. so would my answer

    asked by Russell on January 14, 2019
  85. Geometry

    1. One angle of a rhombus measures 60 degrees. If the perimeter ois 20 inches, find the length of both diagonals. 2. An equilateral triangle has an altitude of 18 inches. Find the are and perimeter of the triangle

    asked by Autumn on May 19, 2016
  86. math

    A composite figure is formed by combining a square and a triangle. Its total area is 32.5 feet squared. The area of the triangle is 7.5 ft squared. What is the length of each side of the square? Explain. THANK YOU!!

    asked by Tim on January 14, 2016
  87. year 8 math

    a snail is at the bottom of an empty trough with walls 40cm high. If the snail manages to move 4cm up a wall each day, but slips 3cm each night, how long does it take the snail to reach the top of the trough? it then continues over the wall and makes it's

    asked by genevieve on March 7, 2011
  88. MEASUREMENTS

    Dan wants to pour a concrete patio in his backyard. He measures the length, width, and thickness of the patio and finds that the amount of concrete he needs is 200ft^2. When he called the concrete company they asked him how many cubic yards of concrete

    asked by DANYALE on May 1, 2016
  89. physics

    A pole AB of length 10m and weight 600N has its centre of gravity 4m from the end A,and lies on horizontal ground. Calculate the force required to beging tto lift the end. Why would this force applied at the end A not be sufficient to lift the end A

    asked by benjieo on June 12, 2014
  90. Math

    Stillwater hospital is borrowing $1,000,000 for its medical office building. The annual interest rate is 5 percent. What will be the equal annual payments on the loan if the length of the loan is four years and payments occurs at the end of each year?

    asked by April on August 3, 2013
  91. Physics

    Suppose that a simple pendulum consists of a small 66.0 g bob at the end of a cord of negligible mass. Suppose that the angle between the cord and the vertical is given by θ = (0.0800 rad) cos[(4.30 rad/s)t + ϕ] (a) What is the pendulum's length? (b)

    asked by Robert C on December 14, 2010
  92. physics(moment/equilibrium)

    A pole AB of length 10m and weight 600N has its centre of gravity 4m from the end A,and lies on horizontal ground. Calculate the force required to beging tto lift the end. Why would this force applied at the end A not be sufficient to lift the end A

    asked by benjieo on June 12, 2014
  93. math

    Please explain how to solve: A circular table is painted yellow with a red square in the middle. The radius of the tabletop is 6x. The side length of the red square is 3x. What is the area of the yellow part of the tabletop? Write your answer in factored

    asked by Jane on January 25, 2012
  94. math

    The formula T=2*pi*sqrt[L/32] gives the period of a pendulum of length l feet. The period P is the number of seconds it takes for the pendulum to swing back and forth once. Suppose we want a pendulum to complete three periods in 2 seconds. How long should

    asked by Gabi on April 11, 2011
  95. english 4

    Phil received a midterm assignment for his economics class to write a business letter. He wants to achieve the highest score possible. What would help Phil the most? 1 knowing the length of the letter 2 knowing the rating scale 3 knowing the evaluators 4

    asked by neri on August 21, 2014
  96. Math

    Linda bought 52 boards to replace part of her fence. If each board was 4 1/2 feet long. What was the total length of the boards that Linda bought for her fence? A.234 ft B.229ft C.182ft D.156ft I multiplied 52x4 and got 208. How do I add the 1/2

    asked by Jerald on October 9, 2013
  97. Statistics

    A song must be n longer than 3 minutes and 30 seconds, or (210 seconds) Micheal Jackson founds out that his mean song length is 244.6 seconds with a standard deviation of 29/3 seconds. What is the null hypothesis and the alternative hypothesis, what is the

    asked by Nicole on April 28, 2014
  98. Calculus

    A rancher wants to build a rectangular pen with an area of 150 m^2? a. Find an equation for the perimeter P in terms of W and L . b. Use the given area to write an equation that relates W and L . c. Find the pen dimensions that require the minimum amount

    asked by Leslie on May 29, 2013
  99. math

    The sides of two squares differ by 25cm while the sum of their areas is 2425cm. What is the length of the sides of each square. I know the answer--45&20 but I don't know the step by step solution. (40)-(20)=25 (40)^2+(20)^2=2425 2025+400=2425 Please give

    asked by Nimuel on August 15, 2016
  100. physics

    A thin stick of mass M = 2.0 kg and length L = 2.6 m is hinged at the top. A piece of clay, mass m = 1.0 kg and velocity V = 0.9 m/s hits the stick a distance x = 1.90 m from the hinge and sticks to itWhat is the ratio of the final mechanical energy to the

    asked by anonymus on September 12, 2018

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