1. Physics

    A 40kg mass hangs from two cables. One cable is at a 25 degree angle. The other cable is horizontally attatched to the mass. Find the tension for each cable

    asked by Maria on January 14, 2016
  2. physics

    the relative density of an alloy is 6.5.find the mass of the solid alloy cube of side 20cm.what volume of the alloy has a mass of 13kg

    asked by relative density on November 16, 2011
  3. physics (vector)

    when two forces of magnitude p and q are perpendicular to each other their resultant is of magnitude 'r' whaen they are at an angle 180 degree to each other their resultant is of magnitude 'r under root 2' find the ratio of p and q.

    asked by shwet on June 6, 2011
  4. Derivatives Instantaneous rate of change

    The electric field E at a distance r from a point field is E =K/r^2 where k is a constant. Find an expression for the instantaneous rate of change of the electric field with respect to r.

    asked by Barry on June 3, 2015
  5. English/Essay

    Could someone tell me if I have done my essay the right way? Please its due Monday?? "The internet is a much easier resource for students than a library” The first reason the internet is a much easier resource for students than a library, you can Find

    asked by Jake on January 12, 2013
  6. physics

    A "swing" ride at a carnival consists of chairs that are swung in a circle by 12.0 m cables attached to a vertical rotating pole, as the drawing shows. (θ = 61.0°) Suppose the total mass of a chair and its occupant is 196 kg. the tension is 3961.97N Find

    asked by Natasha on February 22, 2012
  7. World History

    Among the factors that brought about European colonialism, which of the following supported concepts of racial superiority? A. The introduction of the steam engine and the telegraph B. Social Darwinism C. Economic and trade opportunities D. the machine gun

    asked by Minerva Nall on October 27, 2014
  8. History

    n the beginning which of the following motivated spanish exploration of the americans. A.The search for gold which often remained undiscovered B.The desire to better understand American nature and wildlife. C.The need to find a place to escape the

    asked by Turtle on September 22, 2018
  9. english-project

    Hi!I am doing project, its about making the world a better place for humans. I have to join organizations online and subscribe t email lists to get action updates-issues like anti-war/peace, social justice and environments, animals, food water and

    asked by jessica on November 12, 2013
  10. Calculus I

    Hello, The pressure P and volume V of an expanding gas are related by the formula PVb=C, where b and C are constants (this holds in adiabatic expansion, without heat gain or loss). Find dPdt if b=1.6, P=12kPa, V=80cm2, and dVdt=20cm3/min. Thus far, I got

    asked by Natalie on April 10, 2015
  11. Government

    Im sorry for asking another question but is their a website where i can find what provisions in the constitution ensure that each of these purposes is achieved? -form a more perfect union -establish justice -insure domestic tranquility -provide for the

    asked by Cheryl on October 26, 2010
  12. math. algebra 2

    I need help with this problem I do not understand how to solve this kind of problems....can someone show me and explain it to me thanx. Find a Z-score satisfying the given condition: 82.9% fo the total area a is to the left of z.

    asked by student on July 13, 2007
  13. English

    I need to rephrase (using indirect speech) what 4 people said is important when preparing to go for an interview. Could you please help me? 1)Speaker 1 recommends one should make a short list of the job’s requirement (or requirement for/in the job

    asked by Henry2 on February 10, 2012
  14. Algebra, help please!!!

    Fill in the following blanks to find other expressions for 5%: A: ___ for every 100 B: ___ for every 50 C: 1 for every ___ D: 8 for every ___ E: 0.5 for every ___ Please help, very confused by this problem.

    asked by KG on October 27, 2014
  15. Algebra II

    One number is two less than a second number. If you take one-half of the first number and increase in by the second number, the result is at least 41. Find the least possible value for the second number. HELP PLEASE!!!! I hate word problems!!!

    asked by Lucy on October 18, 2007
  16. Algebra help

    f(x)=x^3-4x^2-x+4 How do I find the x-intercept for this? This is from my book: step 1: 0=x^3-4x^2-x+4 step 2: 0=x^2(x-4)+(-1)(x-4) step 3: 0=(x^2-1)(x-4) I know how to solve once I get to step 3, but in step 2, I don't know what they've done or why. Where

    asked by Claure on June 16, 2009
  17. math!

    GCD (24,20)IS 4. sINCE gcd (4,12) IS 4, THEN gcd (24,20,12) is 4. use this approach and the euclidean algorithim to find the GCD ( 722, 2413,209) WHAT IS THE gcd?

    asked by BECKY! on November 19, 2014
  18. Maths

    Two number LCM is 495 & Two number HCF is 5. When we do Plus those number we find 100 number what diffrance bitween those number.

    asked by Pawan Choumal on February 20, 2013
  19. history

    I don't understand what the answer would be to this question: What subject is being addressed in the passages from the Constitution included by the author? THE PRESIDENT AT GETTYSBURG It is not supposed by any one, we believe, that Mr. Lincoln is possessed

    asked by Anonymous on December 7, 2008
  20. English

    Help I don't under stand Spondee, I am supposed to find the spondee in these lines...."Who loved his charge but never loved to lead; One whose meek flock the people loved to be, not lured by any cheat of birth."

    asked by Christy on September 26, 2011
  21. math

    find the area of this ring to the nearest square unit. Show your work. The image shows a ring, the inside raius is 2.0m, and the outside radius is 3.2m. The area of the ring is... plz help!! thx.

    asked by olivia on December 11, 2008
  22. physics

    a screen is placed at a distance of 1.5 m from a narrow slit. the slit is illuminated by light of wavelength 6000 angstrom if the first minimum on either side of the central maximum is at a distance of 5 mm from , find the width of the slit

    asked by Snehal Semwal on June 25, 2015
  23. ***PLEASE SCIENCE****

    I have this question: Which is the smallest unit of measurement for temperature? One Celsius degree: one Kelvin:one Fahrenheit. I think it is Kelvin but I can't find anywhere in my book where it refers to that. When I google all three it says Celsius &

    asked by MIKE on October 10, 2012
  24. statistics

    the life spans of three randomly selected tires are 31,400 miles, 40,600 miles and 36,000 miles. Using the empirical rule, find the percentile that corresponds to each life span.

    asked by cynthia on September 8, 2013
  25. calculus

    An artificially created lake is bordered on one side by a straight dam. The shape of the lake surface is that of a region in the xy-plane bounded by the graphs of 2y=16-x^2 and x+2y=4. Find the area of the surface of the lake.

    asked by Akki on February 17, 2015
  26. Chemistry

    how do you find the pH of a titration solution at its halfway point to the equivalence, and how would it affect solutions dealing with strong acids and strong bases, this is an example just to see it quantitatively: 100.0 mL of 0.100 M HF (Ka = 7.2 x 10-4)

    asked by Chris on December 1, 2012
  27. probabilities in statistics

    let two cards be dealt sucessively, without replacement, from a standard 52-card deck. find the probability of each event. a) club dealt second, given a diamond dealt first. b) the first card is the ace of hearts and the second is black

    asked by Anonymous on August 1, 2017
  28. Maths

    A particle is moving along the curve y=4sqrt(4x+1) . As the particle passes through the point (2,12), its x-coordinate increases at a rate of 2 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by S.P on November 29, 2011
  29. Statistics

    The life spans of three randomly selected tires are 31,950 miles, 36,050 miles, 34,000 miles. Using the empirical rule, find the percentile that corresponds to each life span.

    asked by Amari on February 17, 2013
  30. Math

    A farmer wants to construct a pen with 100 feet of fencing. The pen will be divided into two areas as shown below. Find the maximum dimensions of the big pen. All I have so far is that 3x+2y=100. I am not sure how to move forward.

    asked by Natalie on February 21, 2016
  31. physics

    A student is skateboarding down a ramp that is 7.06 m long and inclined at 29.0° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.03 m/s. Neglect friction and find the speed at the bottom of the ramp.

    asked by Meaghan on October 14, 2014
  32. statistics

    The life spans of three randomly selected tires are  28,100  miles,  37,900  miles, and  33,000  miles. Using the empirical rule, find the percentile that corresponds to each life span.

    asked by Anonymous on March 1, 2015
  33. Maths - Properties of Planes

    write a scalar equation, given it's vector equation. [x,y,z]= [3,7,-5] + s[1,2,-1] + t[5,-2,3] ( I remember my teacher saying that you have to cross s and t, and that will be my normal and thereafter I substitue the point to find the 'D' value of the

    asked by Shaila on August 24, 2010
  34. Engines

    How do i find total displacement in in^3/min if i have the bore and stroke and and rpm and number of cylinder. i can calculate piston and engine displacement and compression ratios but just not sure about TOTAL displacement and the rpms?

    asked by Matt on September 26, 2006
  35. Calculus 1

    A particle is moving along the curve y= 4 \sqrt{3 x + 1}. As the particle passes through the point (1, 8), its x-coordinate increases at a rate of 2 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by Anonymous on March 25, 2010
  36. physics

    a rope can withstand 300N of force before snapping. assume that a 4 kg object is attached to the rope and is being spun in a horizontal circle with a .5 m radius. Find the velocity of the object when the rope breaks.

    asked by john marsh on January 5, 2009
  37. physics

    A 500 kg car moves along a horizontal road. The car moves with an acceleration 2.5 m/s2 by a driving force of 2500 N when the air resistance is 400 N. Find the friction of the tyre of the car.

    asked by Anonymous on November 30, 2010
  38. Calculus

    A ball of radius 12 has a round hole of radius 6 drilled through its center. Find the volume of the resulting solid. I tried finding the volume of the sphere and the volume of the cyclinder then subtract however that did not work.

    asked by Anonymous on April 27, 2009
  39. trig

    Find two standard position primary angles in radians by solving for the unknown. "Primary angles" are those angles which exist between 0 and 2pi. As usual, use exact values in your calculations. cotx + 1 = 0

    asked by Manny on April 28, 2008
  40. calculus

    A particle is moving along the curve y= 3sqrt3x+1. As the particle passes through the point (5,12), its x-coordinate increases at a rate of 3 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by bre on October 29, 2009
  41. algebra

    your local rollerblade rink will rent you blades for $14.00 for 3 hours or $29.00 for 8 hours. Asume the price increase is constant depending on the number of hours the blades are rented. Find the expression

    asked by logan on February 19, 2008
  42. PHYSICS

    A crate of potatoes of mass 9.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.69 and μk = 0.41. Find the frictional force (magnitude and direction) on the crate if the crate is at rest. magnitude N?

    asked by Anonymous on February 16, 2012
  43. English

    Shakespeare invented many familiar words and phrases. Find five examples that Shakespeare invented and that we still use today. Define what they meant in Shakespeare's time and what they mean now. (I tried to look some up but they did not give the

    asked by Lily on October 28, 2013
  44. geometry

    a ladder is 15 ft long and is leaning against the wall. the top of the ladder is 12 feet above the ground. find the distance from the bottom of the ladder to the wall. draw and label a picture and show work....

    asked by rob on March 20, 2012
  45. Physics

    A square plate of copper with 53.0 cm sides has no net charge and is placed in a region of uniform electric field of 77.0 kN/C directed perpendicularly to the plate. Find the charge density of each face of the plate.

    asked by Alissa on January 23, 2011
  46. physics

    a car manufacturer claims that his car, starting from rest, can attain a speed of 28m/s in a time of 20s. find the average acceleration of the car and the distance it travels in this time?

    asked by ag161 on July 7, 2013
  47. Physics

    A 23.7 kg child, with a 4.35 kg backpack on his back, first stands on a sidewalk and then jumps up into the air. Find the net force (positive up/negative down) on Earth due to the child when the child is (c) standing still and (d) in the air.

    asked by Maria on March 5, 2017
  48. MATHS

    A ship sails 95 km on a bearing of 140 degree,then a further 102 km on a bearing of 260 degree and then returns directly to its starting point.find the length and bearing of the return journey.

    asked by Amina on September 2, 2017
  49. PHYSICS

    A 50KG BLOCK IS BEING PULLED BY a 200-N FORCE ON A HORZONTAL ROUGH SURFACE AS SHOWN IN DIAGRAM.IF THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE BLOCK AND THE SURFACE IS 0.3. FIND THE ACCELERATION OF THE BLOCK

    asked by ALHARRADH on February 29, 2012
  50. physics

    Moon is a natural satellite of the Earth, circling it with period (time of one revolution), T = 27,3 days. Radius of Moon’s orbit = 384,000 km. Find the acceleration of the Moon toward the Earth.

    asked by Anonymous on January 31, 2011
  51. math problem

    A piece of wire 24 cm long is cut into two pieces and each piece is bent to form a square . Find the lenght of each piece of wire in order to maximize the sum of the area of the two squares?

    asked by mark on March 21, 2013
  52. history

    what does this quote mean? "truth should be held sacred, at whatever cost" Sometimes the cost of being true, and accountalbe to tell the truth, costs us time, money, effort, and embarassement. Many people find it less of a cost to lie.

    asked by Anonymous on October 1, 2006
  53. math

    vic has a 2-pound of flour. she uses 2/5 of the flour to make pizza. she then uses 3/10 of the remaining flour to make bread. find the weight of the package of flower that she has left. express your answer as a decimal.

    asked by shohanur on February 24, 2013
  54. Pre-Calculus

    Rational Functions does the following function have a hole or a vertical asymptote or both? how do you know? find the y-value at that point. y=x^2+7x+12/x^2+8x+15 I factored this out to y = (x+3)(x+4)/(x+5)(x+3) The x+3's cancelled out. I don't get the

    asked by Shreya on October 2, 2012
  55. Physics helppp

    A crate of potatoes of mass 9.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.69 and μk = 0.41. Find the frictional force (magnitude and direction) on the crate if the crate is at rest. magnitude N?

    asked by John on February 16, 2012
  56. Math (I've been on this problem for 3 hours)

    If the supply and demand functions for a commodity are given by 2p - q + 10 = 0 and (p + q)(q + 10) = 3642 respectively, find the equilibrium price and quantity that give market equilibrium. (Round your answers to two decimal places.) Equilibrium price =

    asked by Steve on November 2, 2014
  57. Physics

    A 79.4 kg bobsled is pushed along a horizontal surface by two athletes. After the bobsled is pushed a distance of 7.1 starting from rest, its speed is 4.7 m/s. Find the magnitude of the net force on the bobsled. Answer in units of N.

    asked by Sangita on January 25, 2011
  58. science chem

    Please could someone give me a link to a site that explains waht an alkali is? thanks I don't know of a site BUT I probably can find one if you really want it. However, an alkali is simply a base such as NaOH or KOH, or lye. If you still want me to look

    asked by sam on March 19, 2007
  59. Brief calculus

    The marginal cost of producing the xth box of CDs is given by 9 − x/(x^2 + 1)^2. The total cost to produce 2 boxes is $1,200. Find the total cost function C(x). I'm getting 9x-(1/(x^2 - 1))+1181.9 but i guess its wrong

    asked by Kyle on November 3, 2013
  60. PHYSICS!

    An ore sample weighs 15.00 N in air. When the sample is suspended by a light cord and totally immersed in water, the tension in the cord is 9.00 N. Find the total volume and the density of the sample.

    asked by Happinessdelight on June 3, 2017
  61. trig

    Two men on the same side of a tall building notice the angle of elevation to the top of the building to be 30o and 60o respectively. If the height of the building is known to be h =120 m, find the distance (in meters) between the two men.

    asked by Bianca on June 1, 2010
  62. algebra

    ben bought a car for $20,000 in 2003. The car depreciates at a constant rate of 21% per year . Find the price of the car in the year 2010 . Round to nearest dollar

    asked by Johnson on March 12, 2012
  63. physics

    A student is skateboarding down a ramp that is 5.79 m long and inclined at 17.6° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.22 m/s. Neglect friction and find the speed at the bottom of the ramp.

    asked by Anonymous on October 5, 2015
  64. Calculus

    Answer the following questions for the function f(x) = sin^2(x/3) defined on the interval [ -9.424778, 2.356194]. Rememer that you can enter pi for \pi as part of your answer. a.) f(x) is concave down on the interval . I'm really stuck on this one

    asked by Anonymous on November 2, 2011
  65. math

    A recipe for a fruit shake calls for 5 parts milk, 3 parts banana puree, and 2 parts strawberry juice. Find the quantity of each ingredient necessary to make an 8 ounce shake.

    asked by Katie on December 5, 2013
  66. Calc

    A particle is moving along the curve y= 3 \sqrt{3 x + 4}. As the particle passes through the point (4, 12), its x-coordinate increases at a rate of 4 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by Trey on March 15, 2009
  67. physics

    In the drawing, the weight of the block on the table is 428. N and that of the hanging block is 195. N. Ignore friction, the mass of the rope, and the mass of the pulley. Find the acceleration of the two block system in m/s2.

    asked by Jill on December 14, 2014
  68. calc

    A poster is to contain 50 square inches of printed matter with margins of 4 inches at the top and bottom and 2 inches at each side. Find the OUTER dimensions if the total area of the poster is the smallest possible.

    asked by o on March 14, 2016
  69. Calculus

    Find the measure of feta, to the nearest degree where o degrees is less than feta which is less than 360 degrees. 6 sin feta = -1 I really don't get how to solve, I hate algebra, and I feel that it's gonna be getting used in this question.

    asked by -Untamed- on October 12, 2011
  70. Physics

    3. A skater with an initial speed of 7.6 m/s is gliding across the ice. The coefficient of friction between the ice and the skae blades is μk=0.1. a. Find acceleration of the skater b. How foar will the skater travel before coming to rest

    asked by Emily on February 29, 2016
  71. Solid mensuration

    A wooden sphere 16 inches in diameter is placed on a table. The ball is cut horizontally 4in and 10in above the table surface. Find the surface area of the table remains after two cutting

    asked by anonymous on March 10, 2016
  72. Chemistry

    A compound has the empirical formula CHCL .A flask with volume 253 cm3 at temperature of 373K and pressure of 1.0 atm contains 0.8 g of the gaseous compound. Find the molecular formula of the compound.

    asked by Amy on February 22, 2016
  73. calculus-can someone please help me with this ques

    Find all zeros of the following polynomial. Write the polynomial in factored form. f(x)=x^3-3x^2+16x-48 I put: x^2(x-3)+16(x=3) (x-3)(x^2+16) For zeros: x-3=0 x=0 **My teacher stated check the equation solution again. What is the value for x and hence what

    asked by allison--Please help!! on December 27, 2012
  74. PHYSICS

    A 50KG BLOCK IS BEING PULLED BY a 200-N FORCE ON A HORZONTAL ROUGH SURFACE AS SHOWN IN DIAGRAM.IF THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE BLOCK AND THE SURFACE IS 0.3. FIND THE ACCELERATION OF THE BLOCK

    asked by ALHARRADH on February 29, 2012
  75. physics

    A student is skateboarding down a ramp that is 5.5 m long and inclined at 19° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.9 m/s. Neglect friction and find the speed at the bottom of the ramp.

    asked by Julius on February 19, 2011
  76. math

    The position function of a particle in rectilinear motion is given by s(t) s(t) = t3 – 9t2 + 24t + 1 for t ≥ 0. Find the position and acceleration of the particle at the instant the when the particle reverses direction. Include units in your answer.

    asked by Anonymous on May 4, 2015
  77. Physics

    A student is skateboarding down a ramp that is 6.03 m long and inclined at 21.5° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 4.87 m/s. Neglect friction and find the speed at the bottom of the ramp.

    asked by Kristyn on April 7, 2015
  78. Physics

    A student is skateboarding down a ramp that is 8.81 m long and inclined at 27.3 ° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 2.58 m/s. Neglect friction and find the speed at the bottom of the ramp.

    asked by shine on December 12, 2012
  79. maths

    a cube has a lenght of 16cmby12cm height of 10cm with angles z,q,p,w,s,v,r and x.find the angle between z,q and the base p,q,r,s,.2.the angle between zq and the vertical plane p,w,z,s to 1 decimal place.the angle between plane p,q,r,s and w,q,r,z to the

    asked by golda on April 14, 2016
  80. Pre-Calc

    Starkist tuna company will package tuna fish in 2-L cans. Find the radius and the height of the cans if the cans have a surface area which is less that 980 cm^2. I have no idea how to go about this, it seems like geometry to me. Can you give me some help?

    asked by Zach on November 13, 2009
  81. math

    18 Estimate 8128 /18 by first rounding each number so that it has only nonzero digit. 20. Find the digits in the tens place, in the tenths place, and in the ten thousandths place for the following number. 465.2587

    asked by i need help please on May 3, 2012
  82. Math

    Find the sample space. a Bag contains 4 marbles: one each of red, blue, green and violet. Two marbles are drawn from the bag. assume that the first marble is not put in the bag before drawing the second marblle

    asked by Nangoyi on March 21, 2013
  83. physics

    A driver take 0.20 second to apply the breaks (reaction time). If he is driving car at a speed of 54 kmh–1 and the breaks cause a deceleration of 6.0 ms–2. Find the distance travelled by car after he sees the need to put the breaks.

    asked by sree on October 12, 2014
  84. physics

    A 22.0 kg box is sliding down on an incline set at (44) degrees up from horizontal. The coefficient of kinetic friction between the box and the incline is (.27). Find the acceleration of the box. Give your answer in m/s2 and with 3 significant figures.

    asked by dalia on February 16, 2017
  85. Spanish Research

    How did cuban artists influence other cultures? Apart from that what have Cuban artists given to the Hispanola(Haiti and Dominican Republic) culture? Also does anyone know where i can find a good website on Alberto Godoy, a Cuban artist?

    asked by Bob on April 6, 2008
  86. Calculus HELP

    A particle is moving along the curve y=5 sqrt (2x+6). As the particle passes through the point (5,20 , its x-coordinate increases at a rate of 5 units per second. Find the rate of change of the distance from the particle to the origin at this instant.

    asked by Anonymous on July 28, 2013
  87. physics

    A student is skateboarding down a ramp that is 8.48 m long and inclined at 16.4° with respect to the horizontal. The initial speed of the skateboarder at the top of the ramp is 3.94 m/s. Neglect friction and find the speed at the bottom of the ramp.

    asked by Sally on October 3, 2012
  88. physics

    a body of mass 5kg falls vertically against a resistance of x Newtons.The body passes through two points A and B, 2.5 METERS APART with A above B, WHEN TRAVELING WITH SPEED 2 METERS PER SECOND AND 6 METERS PER SECOND RESPECTIVELY. BY ENERGY CONSIDERATION ,

    asked by ken on May 5, 2014
  89. Math

    You play a game where you win $1.00 for each dot that turns up on a fair die (has 6 sides). You pay $3.50 to play the game (and the money is not returned). Find the expected (average) winnings for this game.

    asked by Alexis on February 27, 2012
  90. math

    From the top of a lighthouse 210 feet high, the angle if depression to a boat is 27 degress. Find the distance from the boat to the food of the lighthouse. The lighthouse was built at sea level.

    asked by Maram on April 19, 2011
  91. math

    A stock drops 30 points in five days. Use integers to find the new level of the stock. The stock started at 480 points. I have been using a number line to shoe division but I am stuck on this one. Any help would be great.

    asked by Cherie on October 11, 2012
  92. Maths

    The pulley in the jib of a crane has a diameter of 56cm. Find: a) The circumference of the pulley b) The number of revolutions turned by the pulley when the crane raises a load through a vertical height of 44m.

    asked by Hyaa on November 8, 2014
  93. physics

    A crate of potatoes of mass 13.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.76 and μk = 0.35. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up the ramp.

    asked by Becky on September 20, 2012
  94. physics

    You have a friend who is an archer and she wants to know how fast the arrows leave her bow. You have her launch an arrow horizontally, 1.5 m above the ground, and find that the arrow lands 33 m away. What is the initial velocity of the arrow as it leaves

    asked by katelyn on October 7, 2010
  95. physics

    A train moving with constant velocity travels 190 m north in 12 and an undetermined distance to the west. The speed of the train is 36 m/s. Find the direction of the train's motion relative to north.

    asked by anonymous on September 16, 2011
  96. physic

    a stone is drop from the top of a building and at thesame time a second stone is thrown vertically upward from the botom of the building at a speed of 20m/s, they passed each other 3s later. find the hight of the building.

    asked by Timoty on September 20, 2016
  97. algebra

    Flying with the wind, a pilot flew 600 mi between two cities in 4 h. The return trip against the wind took 5 h. Find the rate of the plane in calm air and the rate of the wind. Please show work. thanks

    asked by PLEASE NEED HELP on March 29, 2012
  98. Any chance I cud get Dog Training help on here???

    If any1 can help me with training my dog that would be FANTASTIC! I know "dog training" isnt a school subject but... i've looked everywhere for help & i cant afford a pro dog trainer. I also cant find any kind of free help..... Thank you SOOO much for ur

    asked by Scarlett on January 2, 2016
  99. Calculus help!

    Three forces with magnitudes 75 pound, 100 lb, and 125 pound act on an object at angles of 30 degrees, -45 degrees, and 120 degrees respectively. Find the direction and magnitude of the resultant vector.

    asked by Liz on May 14, 2013
  100. Mathematics

    A rectangular garden 50 m long and 34 m wide is surrounded by a uniform dirt road. Find the width of the road if the total area of the garden and road is 540 m^2. Explain your solution

    asked by Dimas on October 21, 2011

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