1. physics

    A steady 50 N horizontal force is applied to a 10 kg object on a table. The object slides against a friction force of 35 N. Calculate the acceleration of the object in m/s.

    asked by tash on February 6, 2013
  2. Algebra

    Graph the rational function x/(x-6) To graph the function, draw the horizontal and vertical asymptotes (if any) and plot at least two points on each piece of the graph.

    asked by Kenny on March 24, 2014
  3. physics

    A ball rolls horizontally off a 3.2 m high table and lands 2.2 m from the end of the table. What is the horizontal velocity of the ball when it leaves the table?

    asked by Sadie on October 7, 2012
  4. Physics

    A ball is rolling on a table with a horizontal velocity of 5 m/s when it rolls off the edge. How far from the base of the table does the ball land in the table is 0.8 m tall?

    asked by Ryan on September 20, 2016
  5. phyiscs

    A stone is thrown horizontaly from the top of a 25.00-m cliff. The stone lands at a distance of 40.00 m from the edge of the cliff. What is the horizontal velocity of the stone?

    asked by ashlee on October 22, 2010
  6. microsoft 2013

    19. Which of the following identifies the patterns used for each data series in a chart? A. Data point B. Data series C. The horizontal and vertical axes D. Legend

    asked by Lisa on September 6, 2015
  7. Maths

    A ladder leaning against a wall makes an angle of 60 degree with the horizontal If the foot of the ladder is 2.5 m away from the wall , find the length of the ladder.

    asked by Anand on July 15, 2016
  8. physics

    A plane flies from base camp to Lake A, 260 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to

    asked by john on August 24, 2016
  9. Maths

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

    asked by Lina on March 22, 2015
  10. physics vectors

    A plane flies from base camp to Lake A, 260 km away in the direction 20.0° north of east. After dropping off supplies it flies to Lake B, which is 150 km at 30.0° west of north from Lake A. Graphically determine the distance and direction from Lake B to

    asked by john on August 24, 2016
  11. Physics =/

    Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +5.6 N and the mass

    asked by Sanz on September 26, 2014
  12. physics

    Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +8.3 N and the mass

    asked by bill on February 19, 2015
  13. Calculus

    Two horizontal forces,  and , are acting on a box, but only  is shown in the drawing.  can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that  = +4.2 N

    asked by Xavier on January 4, 2017
  14. trigonometry

    A carpenter is building a house. He is constructing the roof. The roof has an angle of elevation of 40° from the horizontal. The height he wants to make the roof is 18 feet. How far is it from the bottom edge of the roof to the top of the roof? (Find the

    asked by rose on October 18, 2012
  15. Uos

    Two horizontal forces, and , are acting on a box, but only is shown in the drawing. can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that = +2.6 N and the mass

    asked by Mariam on April 11, 2014
  16. Physics

    Two horizontal forces, F1-> and F2-> , are acting on a box, but only F1->is shown in the drawing. F2-> can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that

    asked by Randy on February 13, 2013
  17. physics

    A baseball player slams a fastball towards left field. The ball is hit 1.00 m above the plate at an initial velocity of 3.0 m/s at a 30 degree angle above the horizontal. The left field wall is 113 m away and is 3.00 m high. Is this a home run shot or

    asked by Ashley on September 26, 2013
  18. physics .Henry,Damon,Steve,Saed,bobpursley, And This is my question every one

    A rocket-powered hockey puck is moving on a (friction-less) horizontal air-hockey table. The x- and y-components of its velocity as a function of time are presented in the graphs below. Assuming that at t=0 the puck is at (X0,Y0)=(1,2), draw a detailed

    asked by himel on August 21, 2016
  19. physics

    A place-kicker kicks a football at an angle of è = 41.5° above the horizontal axis, as the figure below shows. The initial speed of the ball is v0 = 26 m/s. Also assume that the ball is kicked on the moon instead of on the earth. The acceleration due to

    asked by Anonymous on January 25, 2012
  20. Physics

    A ball of mass 0.1 kg is suspended vertically from the ceiling with a "massless" string and brought to rest. The string is one meter long. When a force of 0.5N is applied 45 deg. below the horizontal, what will be the magnitude of the resulting angular

    asked by Guy on November 4, 2012
  21. Physics

    Suppose that you are an accident investigator and you are asked to figure whether or not the car was speeding before it crashed through the rail of the bridge and into the mudbank. The speed limit on the bridge is 55 mph = 24 m/s. What is your conclusion?(

    asked by Anonymous on April 4, 2012
  22. physics

    A baseball player slams a fastball towards left field. The ball is hit 1.00 m above the plate at an initial velocity of 36.0 m/s at a 30 degree angle above the horizontal. The left field wall is 113 m away and is 3.00 m high. Is this a home run shot or

    asked by Ashley on September 26, 2013
  23. Physics

    A juggler throws a ball with an initial horizontal velocity of +1.1 m/s and an initial vertical velocity of +5.7 m/s. What is its acceleration at the top of its flight path? Make sure to consider the sign when responding. Consider the upward direction as

    asked by Alexandra on September 13, 2014
  24. Eng. Dynamics

    A fire fighter is standing 20 m from a burning building as shown. She is holding a fire hose 1 m from the ground directed upward at 60° from horizontal with water coming out of the nozzle at 20 m/s. Find the distance from the edge of the roof to where the

    asked by Pat on January 23, 2011
  25. physics

    A mass of 1.1 kg is attached to two cords. The cords are each an angle 30 degrees above and below the horizontal, The mass circles around the vertical pole at a fixed speed of 15 m/s in a circle of radius 0.50 m. How do I calculate the magnitude of the net

    asked by maggie on November 21, 2009
  26. Physics

    A pinball machine has a spring with spring constant of 125N/m. A 65g ball is placed on the spring and the spring is compressed 5cm. How far along the playing surface makes a 15 degrees angle with the horizontal? ignore friction. How to do this using

    asked by Sash on April 15, 2013
  27. Physics

    A woman pushes a lawn mower with a con- stant force of 112 Newtons at an angle of 37degrees with respect to the horizontal. The lawn mower moves at a speed of 20 cm/sec. What is her power output? (1 hp = 746 Watts)

    asked by James on February 27, 2011
  28. physics

    A 0.40kg object is attached to a spring constant 160N/m so that the object is allowed to move on a horizontal frictionless surface. The object is released from rest when the sprin g is compressed 0.15m find: a) the force on the object and b) its

    asked by Etah on August 16, 2015
  29. physics

    Suppose we attempt to account for air resistance in our projectile motion in the following (incorrect) way: we alter g so that the acceleration in the y direction is -8 m/s2, and introduce a horizontal acceleration of -3 m/s2. With these changes, find the

    asked by mitch on September 2, 2012
  30. Physics

    Suppose that you are an accident investigator and you are asked to figure whether or not the car was speeding before it crashed through the rail of the bridge and into the mudbank. The speed limit on the bridge is 55 mph = 24 m/s. What is your conclusion?(

    asked by Anonymous on April 4, 2012
  31. physics

    A car, starting from rest, accelerates in the +x direction as in the figure. It has a mass of 1.10 × 103 kg and maintains an acceleration of +4.40 m/s2 for 2.60 s. Assume that a single horizontal force (not shown) accelerates the vehicle. Determine the

    asked by Tyler on January 12, 2017
  32. physics

    Suppose the slope of a beach underneath the ocean is 21 cm of dropoff for every 1.2 m of horizontal distance. A wave is moving inland, slowing down as it enters shallower water. What is its acceleration when it is 16 m from the shoreline? (Let the +x

    asked by lanre on July 19, 2012
  33. physics

    A 20.0-m tall hollow aluminum flagpole is equivalent in strength to a solid cylinder 4.00 cm in diameter. A strong wind bends the pole much as a horizontal force of 900 N exerted at the top would. How far to the side does the top of the pole flex?

    asked by meme on April 8, 2013
  34. Physics - please help!

    I don't understand how to answer this problem or even which equation to insert it into: "A Dancer leaps across the stage in a beautiful grand jete. The ballerina leaps at an angle of 45° and is able to jump a horizontal distance of 1.5m in 0.547s. What is

    asked by Mariam on March 28, 2018
  35. physics question

    A rocket-powered hockey puck is moving on a (friction-less) horizontal air-hockey table. The x- and y-components of its velocity as a function of time are presented in the graphs below. Assuming that at t=0 the puck is at (X0,Y0)=(1,2), draw a detailed

    asked by himel on August 16, 2016
  36. Math - Urgent!

    Can you show that you can share a square pizza equally between two people by cutting it four times using vertical, horizontal and diagonal (45 degree cuts) through any point inside the square? If you could give an explanation as well as an answer I'd be

    asked by Josh on April 23, 2014
  37. physics

    An artist designs a mobile of light horizontal rods connected by vertical strings and supporting various shaped weights (see figure below). Find the magnitudes w2, w3, and w4 if w1 = 5.91 units of weight. The numerical values given in the figure all have

    asked by john hide on April 11, 2018
  38. College physics

    Open Question: Two equal point charges of 5 µC are on the horizontal axis. One charge is at -10 cm, the other is at +10 cm.? These two charges don't move, they are STUCK, take the potential to be zero at infinity. Find the potential at the following

    asked by Julie on March 3, 2013
  39. Math

    Amanda wants to shorten the wheelchair ramp at her front door. The current ramp is 13 feet along the horizontal and the step is 9 inches high. If she doubles the measure of the angle that the ramp makes with the walkway, how long will the new ramp be to

    asked by Anonymous on May 20, 2015
  40. Physics

    A 1.5 tall student throws a baseball with a horizontal component of velocity of 25m/s. It takes 3.00s to come back to its original height. d. how far did the ball travel horizontally? e. What is the initial velocity in the y-direction? f.At what angle is

    asked by Emely on January 25, 2016
  41. Physics

    A construction worker is standing in a 2.6 m deep well, 3.1 m from the side of the well's wall. He tosses a hammer to a companion outside the well. If the hammer leaves his hand 1.0 m above the bottom of the well, at an angle of 35 degrees to the

    asked by Punisher_131 on May 3, 2014
  42. Physics

    A batter hits a baseball at an angle of 30 degrees with the horizontal. The ball is hit at a height of 2 m and leaves the bat with a speed of Vo. What is the minimum Vo for the ball to clear the outfield fence? The fence is 5 m high and located 60 m from

    asked by Eric on September 16, 2012
  43. physics

    An artist designs a mobile of light horizontal rods connected by vertical strings and supporting various shaped weights (see figure below). Find the magnitudes w2, w3, and w4 if w1 = 4.92 units of weight. The numerical values given in the figure all have

    asked by JOHN on March 26, 2012
  44. Science

    Consider a car moving along a straight horizontal road with a speed of 72km/h.If the coefficient of static friction between the tyres and the road is 0.5,the shortest distance in which the car can be stopped is(taking g=10m/s^2) (a)30m (b)40m (c)72m (d)20m

    asked by Diwije on July 29, 2015
  45. Physics

    An airline pilot pulls her 12.0 kg rollaboard suitcase along the ground with a force of 25.0 N for 10.0 meters. The handle she pulls on makes an angle of 42.5 degrees with the horizontal. How much work does she do over the ten-meter distance? Tried doing:

    asked by Riley on January 12, 2012
  46. physics

    Suppose that you are an accident investigator and you are asked to figure whether or not the car was speeding before it crashed through the rail of the bridge and into the mudbank. The speed limit on the bridge is 55 mph = 24 m/s. What is your conclusion?(

    asked by Anonymous on April 4, 2012
  47. PHYSICS2, help!

    A string is wrapped around the rim of a flywheel 0.400 m in radius, and a steady pull of 50.0 N is exerted on the cord. The wheel is mounted in frictionless bearings on a horizontal shaft through it's center. The moment of inertia of the wheel is 4.00

    asked by Sunny on May 17, 2017
  48. PHYSICS

    A string is wrapped around the rim of a flywheel 0.400 m in radius, and a steady pull of 50.0 N is exerted on the cord. The wheel is mounted in frictionless bearings on a horizontal shaft through it's center. The moment of inertia of the wheel is 4.00

    asked by Happinessdelight on May 17, 2017
  49. physics

    A train slows down as it rounds a sharp horizontal turn, going from 99.0 km/h to 41.0 km/h in the 13.5 s it takes to round the bend. The radius of the curve is 175 m. Compute the acceleration at the moment the train speed reaches 41.0 km/h. Assume the

    asked by Anonymous on September 20, 2013
  50. Physics

    You have a tanker that is filled with olive oil, which total mass = 200 kg. The tanker is in the shape of a rectangular box w/vertical sides and a horizontal cross-sectional area 0.9 m^2. How deep a swimming pool do you need so that the tanker doesn't hit

    asked by Lucy on November 16, 2014
  51. Physics

    You have a 4.5 kg lead block at room temperature. Find the energy required to raise the lead's temperature to its melting point. Find the energy required to melt the lead once it's reached the melting point.

    asked by Anonymous on April 27, 2017
  52. Physics HELP!!!!!!!!

    The earth rotates once per day about an axis passing through the north and south poles, an axis that is perpendicular to the plane of the equator. Assuming the earth is a sphere with a radius of 6.38 106 m, determine the speed and centripetal acceleration

    asked by Mary on April 3, 2007
  53. micro-econ- Help!

    Which of the following would NOT be considered price discrimination? charging business travelers more money than leisure travelers for plane tickets charging houses in expensive neighborhoods more money for mowing the same size lawn than in a less

    asked by Angela on August 8, 2018
  54. calculus

    x^2-x^2y=y^2-1 find all points on the curve where x=2. Show there is a horizontal tangent to the curve at one of the points.

    asked by anonymous on January 28, 2008
  55. physics

    A ball is launched from ground level at 31.8 m/s at an angle of 35° above the horizontal. How far does it go before it is at ground level again? A) 14 m B) 21 m C) 43 m D) 86 m E) 97 m

    asked by jack on June 10, 2010
  56. math

    If X = 2 4 6 8 y = 1 -2 -5 -8 What is the slope I know that slope = vertical change over horizontal change and rise over run

    asked by steve on April 29, 2014
  57. algebra

    What value represents the horizontal translation from the graph of the parent function f(x) = x^2 to the graph of the function g(x) = (x – 4)^2 + 2?

    asked by Eleanor on December 17, 2016
  58. Math

    circles P and Q are externally tangent at T. Horizontal lines l and m are, respectively, tangent to circles P and Q at R and S. Show that RT must contain S.

    asked by Diana on February 18, 2011
  59. English

    Help I have to circle C if the sentences are an example of correct pronoun agreement and circle N if they are not 1. Those who saw the play told us he was impressed. C or N 2. After I walk two miles, my leg hurts. C or N 3. Before you take exam 4, you

    asked by Anonymous on March 11, 2016
  60. physics

    10) Horizontal beam supported on both ends - square profil 100 × 100 × 5, length is 800 mm.It is bent by the force in the middle of the beam by 0.2 mm. To achieve approximately half of the value of deflection,you will use the beam:

    asked by PAUL on August 22, 2013
  61. physics

    A 89.0 N grocery cart is pushed 13.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?

    asked by ed on October 19, 2010
  62. Physics (work and springs)

    A 4kg box is compressed 50cm on a spring (k=800 N/m) and then slides across a horizontal floor. If (u=0.4) between the box and the floor... A) how much work is done? B) assuming the frictional force is constant, how far will the box slide before it comes

    asked by Adam on July 2, 2012
  63. Physics

    In her physics lab, Jessica rolls a 20-g marble down a ramp and off the table with a horizontal velocity of 1.10 m/s. The marble falls in a cup placed 0.44 m from the table's edge. Find the table's height. Use g = 10. m/s2. Enter m as unit.

    asked by Robert on January 22, 2013
  64. math

    a 4 foot by 8 foot panel, the top of wich is located 18 foot below the water line on a dam wall is subject to how much forec? ( assume the panel is oriented with the long side horizontal)

    asked by Anonymous on September 29, 2011
  65. physics

    A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward? Assume that his muscles give the ball the same speed in each case. (Use R and g as appropriate in your equation.)

    asked by kia on February 20, 2011
  66. Physics

    A box is being with a velocity v by a force P (parallel to to v) along a level horizontal floor. the normal force is Fn, the kinetic frictional force if fk, and the weight of the box is mg. Decide which forces do positive, zero or negative work and why?

    asked by Nilan on February 12, 2012
  67. physics

    10) Horizontal beam supported on both ends - square profil 100 × 100 × 5, length is 800 mm.It is bent by the force in the middle of the beam by 0.2 mm. To achieve approximately half of the value of deflection,you will use the beam:

    asked by PAUL on August 21, 2013
  68. Physics

    The speed of an arrow fired from a compound bow is about 57 m/s. An archer sits astride his horse and launches an arrow into the air, elevating the bow at an angle of 54 above the horizontal and 2.3 m above the ground. What is the arrow's range?

    asked by Chris on August 22, 2014
  69. physics

    A model rocket is launched from rest with an upward acceleration of 5.50 m/s^2 and, due to a strong wind, a horizontal acceleration of 1.50m/s^2 . How far is the rocket from the launch pad 7.20 later when the rocket engine runs out of fuel?

    asked by katelin on September 24, 2012
  70. Physics

    A 20 kg sign is pulled by a horizontal force such that the single rope holding the sign makes an angle of 21 degrees with the vertical. Assuming the sign is motionless, find magnitude of the tension in the rope.

    asked by Anonymous on June 11, 2012
  71. physics

    A child is pulling a sled across a horizontal surface by a rope that makes a 27.5 degree angle with the ground. The child pulls with a force of 32.7 N and the total mass of the sled is 23.5 kg. Find the weight of the sled.

    asked by Michael on January 7, 2015
  72. physics

    ) Horizontal beam supported on both ends - square profil 100 × 100 × 5, length is 800 mm.It is bent by the force in the middle of the beam by 0.2 mm. To achieve approximately half of the value of deflection,you will use the beam:

    asked by PAUL on August 20, 2013
  73. Please Helppp Quickly PHYSICSSSS

    A crow sits on a clothesline midway between two poles as shown. Each end of the rope makes an angle of θ = 28° below the horizontal where it connects to the pole. If the combined weight of the crow and the rope is 11.1 N, what is the tension in the rope?

    asked by Anonymous on February 12, 2012
  74. physics

    10) Horizontal beam supported on both ends - square profil 100 × 100 × 5, length is 800 mm.It is bent by the force in the middle of the beam by 0.2 mm. To achieve approximately half of the value of deflection,you will use the beam:

    asked by PAUL on August 20, 2013
  75. Physics

    You are pulling a crate across the floor. The crate has a mass of 75.0 kg. You exert a horizontal force of 120. N to the left. Friction exerts a force of 82.0 N to the right. What is the magnitude (fill in box) and direction of the acceleration of the

    asked by Josie on February 5, 2014
  76. physics

    A 1060 N crate is being pulled across a level floor by a force F of 300 N at an angle of 35° above the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.25. Find the magnitude of the acceleration of the crate. answer in

    asked by Lauren Miller on January 12, 2013
  77. math

    1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect

    asked by gaurav on October 29, 2011
  78. Physics

    A 1.96 kg toy train rolls around a circular horizontal track. If the train has an angular acceleration of -1.95 rads/s2 and is released with an angular speed of 33.0 rpm, what time is required for the train to come to a complete stop?

    asked by Anonymous on October 24, 2016
  79. math

    1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect

    asked by gaurav on October 29, 2011
  80. physics

    A 85.0 N grocery cart is pushed 13.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed

    asked by Bailey on December 2, 2010
  81. ECON

    Assume that a consumer’s indifference curve is bowed outward but satisfies the other three properties of indifference curves. As the consumer moves from left to right along the horizontal axis, the consumer’s marginal rate of substitution

    asked by Anonymous on February 27, 2013
  82. ohy

    Carts of mass 3 kg and 10 kg move on a frictionless horizontal track with speeds of 4 m/s and 3 m/s, respectively. The carts collide and stick together. Find: a) The velocity of the carts just after collision. b) The loss of kinetic energy due to the

    asked by killi on January 26, 2014
  83. physics

    10) Horizontal beam supported on both ends - square profil 100 × 100 × 5, length is 800 mm.It is bent by the force in the middle of the beam by 0.2 mm. To achieve approximately half of the value of deflection,you will use the beam:

    asked by PAUL on August 22, 2013
  84. PHYSICS CAN ANYONE HELPPPP PLEASE

    A crow sits on a clothesline midway between two poles as shown. Each end of the rope makes an angle of θ = 28° below the horizontal where it connects to the pole. If the combined weight of the crow and the rope is 11.1 N, what is the tension in the rope?

    asked by Anonymous on February 12, 2012
  85. math

    1. Two children balance a see-saw in horizontal equilibrium. One weighs 80 lb. and the other weighs 60 lb. and is sitting 4ft. from the fulcrum. Find the force the fulcrum applies to the beam and the distance to the fulcrum to the 80 lb. child. (Neglect

    asked by rahul on October 29, 2011
  86. physics

    A tow truck is connected to a 1500 kg car by a cable that makes a 27 degree angle to the horizontal. If the truck accelerates at 0.58 m/s^2, what is the magnitude of the cable tension? Neglect friction and the mass of the cable.

    asked by ian on April 1, 2012
  87. precalculus

    (A) find the domain of the function, (B) decide if the function is continuous, and (c) identify your horizontal and vertical asymptotes. F(x)= (3x^2+1)/(x^2+x+9) Find the zeros (if any) of the rational function. G(x)= (x^3-8)/x^2+4 H(x)=5 + 3/(x^2+1) G(x)=

    asked by Kelsi on December 13, 2014
  88. physics

    A mover pushes a 4.21 kg box with a 36.6 N constant horizontal force up a 10.0° ramp that has a height of 1.57 m. If the ramp is assumed to be frictionless, find the speed of the box as it reaches the top of the ramp using work and energy.

    asked by Anonymous on November 12, 2018
  89. physics

    A mass is attached to a horizontal spring and compresses the string by 10 cm (position A). when it is released, it bounces back and stretches the spring by 10 cm (position B). Compare the potential energies at position A and B. The choices are 1). A>B, 2)

    asked by Sarah on June 14, 2017
  90. physics

    A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward? Assume that his muscles give the ball the same speed in each case. (Use R and g as appropriate in your equation.)

    asked by Anonymous on February 18, 2011
  91. physics

    A crow sits on a clothesline midway between two poles as shown. Each end of the rope makes an angle of θ = 21° below the horizontal where it connects to the pole. If the combined weight of the crow and the rope is 8.3 N, what is the tension in the rope?

    asked by mayrel on February 17, 2011
  92. physics

    A 90.0 N grocery cart is pushed 14.0 m along an aisle by a shopper who exerts a constant horizontal force of 40.0 N. If all frictional forces are neglected and the cart starts from rest, what is the grocery cart's final speed?

    asked by katieee on December 11, 2011
  93. Physics

    A 1.11 kg toy train rolls around a circular horizontal track. If the train has an angular acceleration of -2.2 rads/s2 and is released with an angular speed of 17.0 rpm, what time is required for the train to come to a complete stop?

    asked by Tom on October 22, 2016
  94. physics

    A boy can throw a ball a maximum horizontal distance of R on a level field. How far can he throw the same ball vertically upward? Assume that his muscles give the ball the same speed in each case. (Use R and g as appropriate in your equation.)

    asked by Anonymous on February 18, 2011
  95. Physics

    Two ropes are attached to a wagon, one horizontal to the west with a tension force of 30 N, and the other east and at an angle of 30° northward and a tension force of 40 N. Find the components of the net force on the cart. Show all your work.

    asked by Jay on December 10, 2011
  96. Chemistry

    A horizontal piston contains 34kg of water that is saturated at 36ºC. Heat is transferred to the water until 80% of the water vaporizes If the piston moves very slowly, calculate the work done by surroundings on the system during this process.

    asked by Anonymous on March 27, 2013
  97. physics

    10) Horizontal beam supported on both ends - square profil 100 × 100 × 5, length is 800 mm.It is bent by the force in the middle of the beam by 0.2 mm. To achieve approximately half of the value of deflection,you will use the beam:

    asked by podge on August 20, 2013
  98. precalculus

    (A) find the domain of the function, (B) decide if the function is continuous, and (c) identify your horizontal and vertical asymptotes. F(x)= (3x^2+1)/(x^2+x+9) Find the zeros (if any) of the rational function. G(x)= (x^3-8)/x^2+4 H(x)=5 + 3/(x^2+1) G(x)=

    asked by Kelsi on December 14, 2014
  99. Physics - Inclined Motions

    You are pushing a 53kg crate at a constant velocity up a ramp onto a truck. The ramp makes an angle of 22deg with the horizontal. If your applied force is 373N, what is then coefficient of friction between the crate and the ramp?

    asked by Shaila on August 11, 2010
  100. COLLEGE PHYSICS

    A rocket is launched at an angle of 60.0° above the horizontal with an initial speed of 99 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 32.0 m/s2. At this time, its engines fail and the rocket proceeds to move

    asked by CARY on September 10, 2010