1. physics

    An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 1.70 mm. If a 19.2-V potential difference is applied to these plates, calculate the following: (a) the electric field between the plates,

    asked by andrew on May 18, 2012
  2. physics

    a car traveling at 30.0m/s undergoes a constant negative accerleration of magnitude of 2.00m/s^2 when the brakes are applied. how many revolutions does each tire make before the car comes to a complete stop,assuming thaat the car does not skid and that the

    asked by nay on February 24, 2009
  3. the percent equation

    1. find 30% 0f 70 2 what is 80% of 65 3 what percent of 56 is 14 4 36 is what percent of 40 5 80 is 40% of what number? 6 65% of what number is 78 7 what percent of 2000 is 6 8 12 is what percent of 4000 9 what percent of 3000 is 18 10 what is 110% of 80

    asked by Fabian on January 28, 2009
  4. Geometry

    A carpenter is building a staircase using his knowledge of right angles. The steps have a horizontal landing and a vertical rise causing each step to be a right triangle cut out. Depending on the purpose, steps may be adjusted by the angle of elevation

    asked by Dana on October 30, 2014
  5. math

    In a factory of electronic items, the total cost of production, expressed in thousands of dollars, is given by the function C(x)= (x^2-x+2)/x+1 where x belongs to [0;5] and expressed in hundrends of items produced. 1) calculate in dollars the total cost of

    asked by Jessy on January 2, 2011
  6. Physic

    A bar has a constant cross sectional area A. The bar is devided in 2 segments segment 1 (1/3 of the bar) and segment 2 (2/3 of the bar). Segment 1 is made of a material with mass density ρ and Young's modulus E. Segment 2 is made of a different material,

    asked by Eatingapple on May 23, 2013
  7. chemistry

    so we did a chemistry lab to find the relationship between temperature and volume or charle's law. In the experiment, i got t1v1=372K, 267.2 cm^3 t2v2=277K,169.1 cm^3 so i graphed that THen they told us to chose 2 other points from that line, TaVa and TbVb

    asked by X on May 5, 2011
  8. Physics HELP

    In a downtown office building you notice that each of the four sections of a rotating door has a mass of 90 kg. What is the width of each section of the door if a force of 58 N applied to the outer edge of a section produces an angular acceleration of

    asked by Jeff on November 15, 2017
  9. PHY101

    A body weighing 3500N is pushed up a rough inclined plane by a force of 5000N. The angle of inclination is 30deg. and the force is applied horizontally. If the coefficient of kinetic friction is 0.5, calculate the acceleration of the body.

    asked by Ebieride on May 17, 2016
  10. English,maths,physics,chemistry

    Topic:machine,a block and tackle of 6 pulleys is used to raise a load of 300N steadily through a height of 30m.if the work done against friction is 2000J. calculate:the work done by effort,the efficiency of the system,the applied effort.

    asked by Chigozie on March 19, 2012
  11. Physics

    After a day of testing race cars, you decide to take your own 1532.6 kg car onto the test track. While moving down the track at 13.5 m/s, you suddenly accelerate to 32.8 m/s in 11 s. What average net force have you applied to the car during that time?

    asked by Harmonie Sky on October 28, 2013
  12. Physics

    A hollow sphere of radius 25 cm is rotating at 13 rad/ sec about an axis that passes through its center. The mass of the sphere is 3.8 kg. assuming a constant net torque is applied to the sphere, how much work is required to bring the sphere to a stop?

    asked by hayley on July 9, 2012
  13. library science

    Q.1. Define Collection Development. How the acquisition of Library Material can be economical, rapid, transparent and accurate? Q.2. What are the different modes of collection building? Highlight the library materials on which general and specific

    asked by hammad on December 31, 2011
  14. Physics

    In a downtown office building you notice each of the four sections of a rotating door has a mass of 85 kg. What is the width of each section of the door if a force of 62 N applied to the outer edge of a section produces an angular acceleration of 0.460

    asked by Destiny on October 19, 2015
  15. Physics

    A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally to the 4 kg block

    asked by Joe on December 19, 2012
  16. chemistry

    Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 6.7×104 A flowing for a period of 23 h . Assume the electrolytic cell is 86 % efficient. What is the energy requirement for this electrolysis per mole of Li formed if the

    asked by Derick on September 21, 2017
  17. Constitutional Law

    According to the readings, which of the following provisions has NOT been formally applied to the states? A. Fifth Amendment right to a grand jury indictment in felony cases B. First Amendment right to peaceably assemble C. Fifth Amendment right against

    asked by Amy on February 13, 2015
  18. physics

    a uniform bar of mass is supported by support pivoted at top about which bar can swing like simple pendulum. If force F is applied perpendicular to lower end of the bar.How big F must be in order to held the bar in equilibrium.

    asked by bharat narke on January 16, 2011
  19. Algebra

    3. To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one

    asked by Anonymous on March 17, 2009
  20. Algebra

    To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one variable

    asked by Micah on January 21, 2008
  21. Algebra

    To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a. Write an equation using only one

    asked by Micah on January 21, 2008
  22. Algebra

    To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. Write an equation using only one variable

    asked by Jack on April 8, 2008
  23. Algebra

    3.To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one

    asked by NA on March 18, 2009
  24. Math- Algebra

    To estimate animal populations, biologists count the total number of animals in a small section of a habitat. The total population of animals is directly proportional to the size of the habitat (in acres) polled. a.Write an equation using only one variable

    asked by Micah on January 21, 2008
  25. physics

    A light spring having a force constant of 110 N/m is used to pull a 10.0 kg sled on a horizontal frictionless ice rink. The sled has an acceleration of 2.0 m/s^2 (a)By how much does the spring stretch if it pulls on the sled horizontally? (b)By how much

    asked by rich on February 18, 2010
  26. Physics

    A stone is dropped at t = 0. A second stone, with 4 times the mass of the first, is dropped from the same point at t = 110 ms. (a) How far below the release point is the center of mass of the two stones at t = 410 ms? (Neither stone has yet reached the

    asked by Patricia on April 1, 2014
  27. AP Physics I

    A placekicker is about to kick a field goal. The ball is 26.6 m from the goal post. The ball is kicked with an initial velocity of 19.0 m/s at an angle θ above the ground. Between what two angles, θ1 and θ2, will the ball clear the 2.8-m-high crossbar?

    asked by Matt on September 20, 2015
  28. physics

    Your spaceship lands on an unknown planet. To determine the local value of g, you ask a steel-toed crew member to kick a stone, and you find that if she kicks it at 18.0m/s at various angles, the maximum range she can achieve is 30.8m. What is g on this

    asked by lina on September 15, 2009
  29. Physic

    A 1/2 inch diameter piston moves 10 inches when 30 Lbs of force is applied how far will it move a 6 inch diamter piston and how much weight will this piston lift.

    asked by Ann on October 13, 2014
  30. science

    Two bricks having a 22N force applied on them and each brick having a friction of 1N ,the first brick with the mass of 2kg and the second one having a mass of 3kg.calculate the acceleration that the first brick expiriences

    asked by Bongani on February 29, 2012
  31. Physic

    A1/2 inch diameter piston moves 10 inches when 30 Lbs of force is applied, how far will it move a 6 inch Diamter piston, and how much weight will this piston lift?

    asked by Tonya on October 12, 2014
  32. physical science

    An input force of 20 newtons is applied to a lever at a distance of 2 meters from the fulcrum. An object 0.5 m away from the fulcrum (and on the other side) is lifted by the 20-N force. What is the output force? A. 10 N B. 20 N C. 40 N D. 80 N

    asked by tetianna on June 16, 2015
  33. physics

    a horizontal force of 95 N is applied to 60 kg crate on rough , level surface. if crate accelerates at 1.20 m/s2 , what is magnitude of the force of kinetic friction acting on the crate?

    asked by jerry on March 1, 2010
  34. Physics

    A car moving with a speed of 90km per hrt was brought to rest by the applications of brakes in 10sec how far the car the car travel afterwards the brakes were applied

    asked by James awodi on November 7, 2017
  35. Biomechanics

    A 10 kg block sits motionless on a table in spite of an applied horizontal force of 2 N. What are the magnitudes of the reaction force and friction force acting on the block?

    asked by Jami on April 19, 2013
  36. PSYCHOLOGY

    provide a situation when scientific method, case study method, survey method, Naturalistic observation method, Correlation method, and Experimental method could be applied

    asked by scooby on November 21, 2009
  37. physics

    A car moving at 62 mi/h can be brought to rest in 4.8 s. Assuming that the deceleration is uniform, how far will the car travel between the time the brakes are applied and the time the car stops?

    asked by Adnane on September 18, 2011
  38. Pre-Calculus

    Verify the identity. cos x - sec x = -sin x tan x So far I have applied a reciprocal identity =cos x - 1/cos x I know I must combine using the least common denominator but I don't know how it would be written.

    asked by Karry on September 29, 2017
  39. Math

    Can someone explain to me the rules of distribution. I have a word problem which asks my opinion of applying distribution to each problem but I don't completely understand distribution and when it is applied and when it isn't.

    asked by Anonymous on November 14, 2009
  40. physics

    A 18.7 ohm and a 24.3 ohm resistor are connected parallel. A difference in potential of 41.5 V is applied to the combination. What is the equivalent resistance of the parallel circuit? Answer in units of ohm .

    asked by maria on March 29, 2011
  41. Physics

    A block of mass of 24.0 kg is sitting on a frictionless surface. If the block is initially at rest, and a force of 3.0 N parallel to the surface is applied for 5.0 seconds, what is the final speed of the block?.

    asked by Victoria on December 6, 2011
  42. physics

    A 1000kg rocket is moving forward at 10m/s in space. A 10,000N force is applied to the rocket for one second from behind. How fast is the rocket now traveling? a. 0m/s b. 10m/s c. 15m/s d. 20m/s

    asked by Claudia on November 1, 2011
  43. PRE CALC HELP PLEASE

    A plumber, electrician and painter were all hired to work on 3 different house. For Adam's house, a plumber worked a total of 35 hours, an electrician worked 42 hours and a painter needed 29 hrs to complete the job. the total cost of the three workers for

    asked by Aly on May 25, 2014
  44. Physics

    A space station is designed so that people can walk on the inside of the outer wall and feel their normal weight. The station is to be 750 m in diameter. What is the period of the station's rotation?

    asked by Juan on February 26, 2018
  45. statistics

    For a normal distribution with a mean of 140 and a standard deviation of 55 find each value requested. a. What is the minimum score needed to be in the bottom 10% of the distribution? b. What scores form the boundaries for the middle 75% of the

    asked by tammy on April 29, 2012
  46. statistics

    The lifetime of a 2- volt non- rechargeable battery in constant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours. What is the z-score for batteries with lifetimes of 600 hours?

    asked by Gee on September 6, 2012
  47. statistics

    The lifetime of a 2- volt non-rechargeable battery in constant use has a normal distribution of 516 hours and a standard deviation of 20 hours. What is the z- score for batteries with lifetimes of 520 hours?

    asked by Gee on September 6, 2012
  48. physics

    1- An elevator, when fully loaded, has a mass of 5500 kg. The elevator needs to accelerate anywhere from 2.7 m/s^2 [D] to 2.7 m/s^2 [U]. What is the maximum tension force that the elevator cable will need to support during normal use? can we use fnet

    asked by Anonymous on October 26, 2014
  49. Math

    Use the normal distribution of weights of adult men, which has a mean of 170 pounds and a standard deviation of 7.5 pounds. Use the z-score chart to find the percentage of heights less than 155 pounds.

    asked by Edwin on November 17, 2016
  50. math

    Find the z-score for the given raw score, mean, and standard deviation. Assume a normal probability distribution score = 15, ì = 16 , and ó = 2 Could you show me how to do this. My instructor has tried but I just don't understand how to do it and I have

    asked by sam on August 23, 2009
  51. Math

    3. A textbook weighs 2.5 pounds. How many kilograms does the textbook weigh? Round your answer to the nearest tenth of a pound. 1kg = 2.2 lb 1.1 kg 1.8 kg 5.5 kg 4.7 kg (my answer) 5. Solve the proportion using cross products 18/20 = k/110 A. 99 B. 122 C.

    asked by Easy Math problem on March 7, 2014
  52. walden

    Assume that you are considering a 7-night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering

    asked by trista on March 9, 2015
  53. Microeconomics

    Assume that you are considering a 7-night vacation to Fort Walton Beach, Florida, in March. You estimate the total cost of the trip to Fort Walton Beach at $1,250, including discounted airfare. However, a resort at Myrtle Beach, South Carolina, is offering

    asked by Anonymous on September 7, 2015
  54. HELP!!!! math

    Find the measures of the interior angles of the pentagon below. A- 90 degrees B- x + 40 degrees C- x degrees D- x + 40 degrees E- x+ 50 degrees

    asked by Anonymous on April 4, 2011
  55. Maths - trigonometry

    if sec theta*sin(36° + theta )=0 , find the value of theta so that theta and 36°+theta are acute angles

    asked by Safi on April 16, 2017
  56. aritmetics

    how do you figure two thirds of 36 is 24? please tell me! I know its simple This is the easy way to figure it. Divide 36 into 3 equal parts. The three is the bottom number. To SEE this , use dried peas or blocks. Now, put two of the parts together... The 2

    asked by chrissy on July 10, 2007
  57. math

    Calculate the answers |-3-|-7-7|| Does |n+m| = |n|+|m| for all integers na and m? If so, give some examples. If not, give a counterexample. The Weathertalk Analysis Problem. Read the following story about the TV weatherperson and identify as many places as

    asked by bubba on February 21, 2011
  58. Physics

    A 5 kg block is placed on top of a 10 kg block as shown above. A horizontal force of 45 N is applied to the 10 kg block, while the 5 kg block is tied to the wall. The coefficient of kinetic friction between the moving surfaces is 0.20. Determine (a) the

    asked by Chrxeyshthoufov on February 23, 2014
  59. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 23, 2008
  60. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 24, 2008
  61. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 23, 2008
  62. physics

    Air (a diatomic ideal gas) at 30.0°C and atmospheric pressure is drawn into a bicycle pump that has a cylinder with an inner diameter of 2.50 cm and length 70 cm. The down stroke adiabatically compresses the air, which reaches a gauge pressure of 800 kPa

    asked by tom on October 23, 2008
  63. Physics

    Two objects x and y with a total mass od 2.5 x 10^3 kg are joined together in outer space and are at rest. An astronaut in a space shuttle presses a button that is explosive and separates the two objects from each other. X moves to the right with a

    asked by Xanther on August 8, 2011
  64. PHYSICS

    A curve in a road forms part of a horizontal circle. As a car goes around it at constant speed 14.0 m/s, the total force exerted on the driver has magnitude 115 N. What are the magnitude and direction of the total vector force exerted on the driver if the

    asked by Laila on January 18, 2010
  65. stats

    8-A bakery stated that the average number of breads sold daily is 3000. An employee thinks that the actual value might differ from this and wants to test this statement. The correct hypotheses are: (1) H0 : ¦Ì = 3000 H1 : ¦Ì not= 3000 (2) H0 : ¦Ì >

    asked by Judy and group on April 1, 2010
  66. Math

    A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,

    asked by confused on September 27, 2011
  67. Math

    A printed page is to have a total area of 100 square inches. The top and bottom margins are to be 1 inch and the side margins to be 1.5 inches. Let l represent the total length of the page and w represent the total width of the page. a) Write an equation,

    asked by confused on September 27, 2011
  68. math

    PLEASE HELP ME ANSWER THIS QUESTION. THIS QUESTION IS HARD FOR ME AND i DON'T GET IT. please show working when answering. Just in case your wondering this is a practice question. Use the following pattern to answer the question Design (n) Number of

    asked by Rakshana on September 4, 2011
  69. 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
  70. Physics

    An airliner lands with a speed of 48.5 m/s. Each wheel of the plane has a radius of 1.25 m and a moment of inertia of 110 kg · m2. At touchdown, the wheels begin to spin under the action of friction. Each wheel supports a weight of 1.40 ✕ 104 N, and the

    asked by Elsie on December 17, 2014
  71. stats

    Three scholarships are available for needy students. Their values are $2,00, $2,400 and $3,000 12 students have applied and no student may receive more than one scholarship. Assuming all 12 students are in need of funds, how many different ways could the

    asked by Maria B on March 16, 2011
  72. physics

    In the outer space, a constant force is applied to a 32.5 kg probe initially at rest. The probe moves a distance of 100 m in 10 s. (a) What acceleration does this force produce? (b) What is the magnitude of the force?

    asked by chyenne on January 13, 2016
  73. Physics

    If the output piston in a hydraulic pump exerts a greater force than one applied to the input poston, is the pressure at the outpit piston also larger than at the input piston? Im really not even sure how to go about this question.

    asked by Abida on January 17, 2011
  74. algebra

    the length of a coil l (in centimeters) is a function of the weight w (in kilograms) applied to the coil. For a particular coil, the function is represented by the equation l=54-3w. Explain the meaning of the numbers 54 and -3 within the context of this

    asked by Latoyia on June 11, 2016
  75. Physics

    A perpendicular force of 600n acts on a circular surface of radius 1.4 m. The surface breaks if additional force of 16N is applied on it . What is the maximum pressure that the surface can withstand with.

    asked by Achintya Sharma on November 29, 2014
  76. AED

    Select one strategy from your list. Cultural Diversity Then How can this strategy be applied to both types of learners you identified? Can this single strategy be effective for all learners? Why or why not? the other one i chose was lang. but they are not

    asked by Dawn on April 19, 2008
  77. Physics

    When a horizontal force of 350 is applied to a 86.0 box, the box slides on a level floor, opposed by a force of kinetic friction of 130 .What is the magnitude of the acceleration of the box?

    asked by EL on May 25, 2011
  78. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max on February 15, 2012
  79. Physics

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by Max on February 15, 2012
  80. Angular Acceleration

    A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?

    asked by MaxX on February 15, 2012
  81. physics

    9) A force in the +x-direction with magnitude F(x) = 18.0 N – (0.530 N/m) x is applied to a 6.00-kg box that is sitting on a frictionless surface. F(x) is the only horizontal force on the box. If the box is initially at rest at x = 0, what is its speed

    asked by papy on September 20, 2014
  82. physics

    A 3.40 kg block is pushed along the ceiling with an constant applied force of F = 82.0 N that acts at an angle θ = 50° with the horizontal. The block accelerates to the right at 5.80 m/s2. Determine the coefficient of kinetic friction between the block

    asked by Elli Johnson on January 14, 2013
  83. physics

    1)An elastic material has a length of 36cm when a load of 40N is hung on it and a length of 45cm when a load of 60N is hung on it. The original length of spring is? 2)A force of 100N stretches an elastic spring to a total of 20cm. If an additional force of

    asked by Anne on April 9, 2013
  84. chemistry

    A student generates H2(g) over water using the reaction between zinc and hydrochloric acid Zn(s)+ 2HCl(aq)---> ZnCl2(aq)+ H2(g) Data: Mass of vial and zinc 15.5082 mass of vial 15.3972 mass of zinc 0.111 final burette reading 45.30mL barometric pressure:

    asked by Yuli on November 24, 2011
  85. Math

    Find the total surface area if q solid cube of volume 98 cm cube. An open water tank with length 20 cm and width 15 cm holds 4.8 liters of water. Calculate the height of the water level in tank and the total sitface area of the cuboid in contact with

    asked by Julie charmster on February 20, 2011
  86. math

    if the measures of the angles of a triangle are represented by 2x, 3x-15, and 7x-15, the triangle is 1)an isosceles triangle 2)a right triangle 3)an acute triangle 4)an equiangular triangle

    asked by derek on May 30, 2008
  87. geometry

    Is it always true, sometimes true, or never true that the centroid is outside its associated triangle? Is it always true, sometimes true, or never true that two complementary angles have a common vertex?

    asked by lisa on May 31, 2010
  88. GEOMETRY

    What is the value of p? A right triangle with angles measuring 45, 45 and 90 and a leg measuring P and hypotenuse measuring 44 22 22 sqrt 2 44 44 sqrt 3 It always helps to know how...thanks

    asked by Anonymous on February 18, 2015
  89. math

    if the measures of the angles of a triangle are represented by 2x, 3x-15, and 7x+15, the triangle is 1)isosceles triangle 2)right triangle 3)acute triangle 4)equiangular triangle

    asked by derek on May 31, 2008
  90. geometry problems

    two angles are complementary. the measure of one angle is 1/5 of the measure of its compliment.find the measure of the smaller angle

    asked by cronica fay on December 2, 2015
  91. Geometry

    One pattern on my worksheet has angles. The first is 90 degrees, 135 degrees, then 157.5 degrees. I don't really see any pattern. Could anyone help me with this? Thank you so much. :)

    asked by Celine on September 10, 2009
  92. Algebra

    I have a pair of supplementary angles, the measure of one angle is 8 times the measure of the other. What is the measure of the larger angle?

    asked by samay on February 6, 2018
  93. math

    Which statements about a rhombus are always true? Its diagonals are congruent. All angles are congruent. All sides are congruent. Its diagonals are Û to each other.

    asked by kyle on July 17, 2014
  94. physics

    two forces f1 and f2 are acting at a point such that the angles between them are (1) 30 degree (2) 60 degree and (3) 45 degree show that resultant forces will be

    asked by cat on March 23, 2013
  95. physics

    two forces f1 and f2 are acting at a point such that the angles between them are (1) 30 degree (2) 60 degree and (3) 45 degree show that resultant forces will be

    asked by cat on March 23, 2013
  96. Math... PLEASE HELP!!

    If one angle in a pair of vertical angles measures 42 degrees and the other measures 2n-4 degrees, which is the value of n? I got 23 degrees but I am not sure if it is correct. Please help me...

    asked by Nicole on November 12, 2013
  97. Economics

    Consider a single price monopoly that faces a market demand curve for a good is given by the equation 𝑃=100−.1𝑄 and the total cost function is given as 𝑇𝐶=1000+20𝑄+.4𝑄2. a. What is the total fixed cost for this monopoly? P/TC

    asked by Steven on August 23, 2016
  98. Science

    A horizontal force of 24 N is being applied to a box on a level surface. The box is accelerating at the rate of2280889against a frictional force of 14 N. What is the mass of the box?

    asked by Jabrika on March 16, 2015
  99. Physics

    A 15 kg sled experiences an applied force of 5.5 N [north] and an opposing frictional force of 2.5 N [south]. If the sled starts from rest, what will be the velocity of the sled after 4.0 s?

    asked by Matthew on October 27, 2014
  100. Physics

    A force is applied to a door at an angle of 56.8° and 0.34 m from the hinge. a) What force produces a torque with a magnitude of 2.18 N·m? b) How large is the maximum torque this force can exert?

    asked by Mike on March 13, 2013