1. Economics (42)

    Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings

    asked by Mia on May 11, 2014
  2. Economics (42)

    Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings

    asked by Mia on May 9, 2014
  3. Physics

    A space station is constructed in the shape of a hollow ring of mass 5.60 104 kg. Members of the crew walk on a deck formed by the inner surface of the outer cylindrical wall of the ring, with radius 140 m. At rest when constructed, the ring is set

    asked by Hubert on April 24, 2013
  4. physics

    A 3.0 m long ladder of weight 98. N leans against a frictionless wall at an angle of 60.° with respect to the horizontal. The coefficient of static friction between the ground and the ladder is µs=0.45. If the ladder is not sliding, the magnitude of the

    asked by noreen on January 11, 2011
  5. Physics multiple choice

    1. The normal force is always less than or equal to force of gravity a) True b) False 2. What is the value of the normal force? (there is an image of a box with a mass of 10kg and it is sitting on a flat horizontal surface) a) 98 N [up] b) 98 N [down] c)

    asked by Jessie on December 17, 2013
  6. physics- multiple choice

    1. The normal force is always less than or equal to force of gravity a) True b) False 2. What is the value of the normal force? (there is an image of a box with a mass of 10kg and it is sitting on a flat horizontal surface) a) 98 N [up] b) 98 N [down] c)

    asked by Jessie on December 16, 2013
  7. Physics

    A red ball is thrown directly upwards from the ground with an initial velocity of 35.0 m/s. At the same time, a blue ball is thrown directly upwards from he ground with an initial velocity of 10.0 m/s. 1. How high is the red ball when the blue ball reaches

    asked by Jacob on August 27, 2017
  8. Physics

    A racquet ball is struck in such a way that it leaves the racquet with a speed of 4.8 m/s in the horizontal direction. When the ball hits the court, it is a horizontal distance of 1.94 m from the racquet. Find the height of the racquet ball when it left

    asked by Geoff on August 26, 2016
  9. Biomechanics

    A pitched ball with a mass of 1 kg reaches a catcher's glove traveling at a velocity of 28 m/s. How much momentum does the ball have? how much impulse is required to stop the ball? If the ball is in contact with the catcher's glove for 0.5 s during the

    asked by Walter on November 21, 2010
  10. Physics

    for our lab, we had to fill a semi-circle plastic dish (with a scratch on one side) with water and find the index of refraction of water by putting a pin on one side of the dish, looking through the water, and put a pin on the other side of the dish to

    asked by JJ on April 27, 2007
  11. math - quadratic problems

    1. What must be the dimensions of a rectangle to have an area 125m^2 and a perimeter of 60m? 2. In a right angle the hypotenuse is 15cm. if the second side is twice the length of the third side, calculate the exact length pf the shortest side. 3. THe

    asked by need help with all on February 22, 2018
  12. Health-Ms. Sue

    Coach Downey had his team practice bunting while working on basic fundamentals. Nearly all of the bunts were reaching the fielders so quickly that the base runners were easily thrown out before they could advance. Coach Downey emphasized better bunting

    asked by Anonymous on January 17, 2014
  13. physics

    please help--I don't understand how to get started! A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm = 10^-9 m) . The nanofiber is attached to a substrate (an immovable wall). The plot is a

    asked by julia on November 23, 2009
  14. Physics

    A ball is falling through the air. It has just two forces acting on it, its weight and air resistance. Which of the following statements is true? a. There are only conservative forces acting on the ball. b. There are only nonconservative forces acting on

    asked by Sarah on December 12, 2011
  15. Math

    1. Find the solution of each equation from the given numbers. Y/9 = 32; 261, 279, or 288 2. A bowling bowl has a mass of 5.54 kg. A bowling pin has a mass of 1.58 kg. About how many pins are equal in mass to one ball. 3. An elevator has a maximum lift of

    asked by Anonymous1 on November 26, 2018
  16. physics

    A ball is thrown from the top of a building upward at an angle of 66 ◦ to the horizontal and with an initial speed of 16 m/s. The ball is thrown at a height of 53 m above the ground and hits the ground 33.2074 m from the base of the building. The

    asked by Anonymous on November 8, 2009
  17. physics

    a uniform (in density and shape) stick is balanced by one end on the ground and the other tied to a massless horizontal rope attached to a wall as shown in the figure. The stick's mass is 10kg and its length is 5m. a. Calculate the tension on the rope b.

    asked by danny on November 21, 2013
  18. Chemistry

    A ball is dropped from 27.0 ft above the ground. Using energy considerations only, what is the velocity of the ball just as it hits the ground? If the ball is thrown back up to a ledge 15 m above the ground, what would be the velocity just as it reaches

    asked by Jessica on October 24, 2008
  19. physics

    You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C)

    asked by Geraldo on December 13, 2011
  20. physics

    You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C)

    asked by Geraldo on December 13, 2011
  21. physics

    You throw a 1kg ball out of a window 12 meters above the ground with horizontal speed. It lands on the ground 5 meters from the building after 1 second. Ignore air resistance, A) How fast did you throw the ball? B) What was the ball's initial velocity? C)

    asked by Geraldo on December 13, 2011
  22. math

    If a ball is thrown vertically upward from the roof of 32 foot building with a velocity of 80 ft/sec, its height after t seconds is s(t)=32+80t–16t2. What is the maximum height the ball reaches? What is the velocity of the ball when it hits the ground

    asked by Jin on August 20, 2010
  23. Stats

    Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings

    asked by Dan on December 16, 2014
  24. Statistics

    Consumption of alcoholic beverages by young women of drinking age has been increasing in the United Kingdom, the United States, and Europe (The Wall Street Journal, February 15, 2006). Data (annual consumption in liters) consistent with the findings

    asked by Jackie on December 16, 2014
  25. physics

    A 2.09 kg block is placed on top of a 10.9 kg block. A horizontal force of F = 63.3 N is applied to the 10.9 kg block, and the 2.09 kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.117. There is friction

    asked by shel on October 10, 2010
  26. Physics

    Can someone please answer my question on this paragraph from my physics book regarding basic aerodynamics: "Now we consider a spinning baseball moving through the still air. As the ball spins, it tends to drag air around with it. If the streamlines are

    asked by Sean on October 20, 2009
  27. 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
  28. Physics

    A 46.5 kg block sits at rest on a frictionless, horizontal surface. It is connected horizontally, via a massless, ideal spring to a stationary wall. A force is then used to displace and hold the block in a new position (so that the spring is compressed).

    asked by John on December 4, 2009
  29. physics

    A rubber ball (mass 0.21 kg) is dropped from a height of 1.7 m onto the floor. Just after bouncing from the floor, the ball has a speed of 3.6 m/s. (a) What is the magnitude and direction of the impulse imparted by the floor to the ball? Magnitude?

    asked by glenmore on December 4, 2011
  30. physics

    A gymnast with mass m1 = 47 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 118 kg and length L = 5 m. Each support is 1/3 of the way from each end. Initially the gymnast stands at the left end of the

    asked by Anonymous on March 29, 2011
  31. physcis

    A beam resting on two pivots has a length of L = 9.00 m and mass M =81.0 kg. The pivot under the left end exerts a normal force n1 on the beam, and the second pivot placed a distance 4.00 m from the left end exerts a normal force n2. A woman of mass m=

    asked by Anonymous on November 11, 2012
  32. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a string of relaxed length 0.50 nm .The string is the black horizontal line attached to a an immovable wall on the left. The plot is a graph of the force needed to stretch the string by pulling to the

    asked by maggie on November 21, 2009
  33. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm = 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by maggie on November 23, 2009
  34. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by Maggie on November 22, 2009
  35. Physics

    A rope exerts a constant horizontal force of 203N pulling a 68-kg crate across the floor. The velocity of the crate is observed to increase from 3m/s to 5m/s in a time of 4 seconds under the influence of this force and the frictional force exerted by the

    asked by Tim on June 21, 2013
  36. physics134

    A ball, with a mass of 0.144 kg, is thrown from the top of a 76.8 m building (point A) at an angle, θ = 65º with respect to the horizontal. The initial speed of the ball is unknown. The ball reaches a maximum height of 12 m above the building after which

    asked by Anonymous on May 4, 2013
  37. English

    Excerpt from “Conversational Ballgames” by Nancy Masterson Sakamoto. 1 Japanese-style conversations develop quite differently from western-style conversations. And the difference isn’t only in the languages. I realized that just as I kept trying to

    asked by sans the skeleton on November 20, 2018
  38. physics

    The tallest volcano in the solar system is the 17 km tall Martian volcano, Olympus Mons. An astronaut drops a ball off the rim of the crater and that the free fall acceleration of the ball remains constant throughout the ball’s 17 km fall at a value of

    asked by NEEDS HELP! on September 12, 2012
  39. Physics

    5. The ball launcher in a pinball machine has a spring that has a force constant of 1.20 N/cm . The surface on which the ball moves is inclined 10.0° with respect to the horizontal. The spring is initially compressed 5.00 cm. Find (a) the launching speed

    asked by John Tucker on February 1, 2013
  40. physics

    When serving, a tennis ball is almost motionless when it is slammed by the racquet. A force sensor in an experimental tennis racquet measures a force of 80 N during the impact with a 0.058 kg tennis ball. The impact lasts for 0.04 seconds. If the ball was

    asked by Anonymous on June 1, 2013
  41. physics

    1)A hiker throws a ball at an angle of 21.0 above the horizontal from a hill 21.0 m high. The hiker's height is 1.750 m. The magnitudes of the horizontal and vertical components are 14.004 m/s and 5.376 m/s, respectivley. Find the distance between the base

    asked by Anonymous on April 16, 2008
  42. History

    When did construction of the Great Wall of China end? Please give me a website to refer to.

    asked by Anonymous on November 14, 2013
  43. anatomy

    This structure increases the surface area of the interior wall of the small intestine

    asked by sue on April 14, 2013
  44. Area and Perimeter Word Problems

    How many square feet of wallpaper is needed to cover a wall if it has a perimeter of 50 ft and a height of 10 ft?

    asked by Mashayla on January 11, 2015
  45. Physics

    Leroy, who has a mass of 72 kg, is skateboarding at 5.9 m/s when he smacks into a brick wall and comes to a dead stop in 0.2 s.

    asked by Kimiko on February 18, 2015
  46. Science

    The list of words is: Nucleus, Mitochondria, Vacoule, Cell Wall. Which does not belong and why?

    asked by Anonymous on November 7, 2011
  47. algebra

    if a wall is 34 feet, how tall must a ladder be to reach the top if at a 75 degree angle

    asked by jen on June 5, 2012
  48. physics

    A bullet is fired in to s wall losses half of its velocity after penetrsting 3m.how much further will it penetrate.

    asked by saroj on July 27, 2017
  49. english 1

    The underlined statement is a prepositional phrase. Leslie stood with his back against the wall.

    asked by vic on January 31, 2010
  50. Anatomy & Phsyiology

    What's the function of the hair follicle wall and the veins in the epidermis/dermis/hypodermis?

    asked by Willlli G. on November 28, 2014
  51. Physcial Science

    The silvered wall of a vacuum bottle takes care of heat flow by what?

    asked by Sue on April 26, 2010
  52. math

    if a 30 ft ladder makes a 65 degree angle with the ground, how many fee up the wall will it reach

    asked by kathy on April 8, 2014
  53. Math

    How many tiles are needed to create a border 3 inches high along the base of a wall?

    asked by stephany on October 4, 2012
  54. Politics

    Q. The words “wall of separation between church and state” appear in the Constitution. a. true b. false

    asked by help on February 17, 2012
  55. Physics - HELP please

    A 24.0 kg box (m1) rests on a table.(b) A 13.0 kg box (m2) is placed on top of the 24.0 kg box, as shown in Fig. 4-35. Determine the normal force that the table exerts on the 24.0 kg box. Determine the normal force that the 24.0 kg box exerts on the 13.0

    asked by DJ on October 8, 2009
  56. Physics - HELP please

    A 24.0 kg box (m1) rests on a table.(b) A 13.0 kg box (m2) is placed on top of the 24.0 kg box, as shown in Fig. 4-35. Determine the normal force that the table exerts on the 24.0 kg box. Determine the normal force that the 24.0 kg box exerts on the 13.0

    asked by DJ on October 8, 2009
  57. Algebra

    kyle drops a ball from a height of 15 feet above the ground. The function h = -16 f2 +15 gives the height h of the ball (in feet) after t seconds. Graph the function to determine at about what time the ball hits the ground

    asked by Samantha on April 21, 2015
  58. physics

    If a soccer player kicks a ball with a force of 130 N, what force does the ball impart on the player's foot?

    asked by Dres on January 13, 2011
  59. engineering mechanics

    A block P weighing 200KN rests on the top of the block Q of weight 300KN and they are connected by a common string passing around a frictionless pulley S which is tied to a vertical wall by a horizontal string as shown if the coefficient of friction

    asked by Anonymous on December 26, 2014
  60. Physics

    A person pushes a 16.0-kg shopping cart at a constant velocity for a distance of 18.0 m. She pushes in a direction 20.0° below the horizontal. A 40.0-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the

    asked by Anon on October 3, 2014
  61. Physics

    I was wondering if my answers are correct. Thanks in advance. 1. A boy pushes down on a car rolling horizontally down the road. The boy pushes down vertically with 10N of force as the car rolls 3.0m horizontally. What work is done? my answer: 30 N•m (or

    asked by Liz on February 3, 2014
  62. physics

    A 0.405 soccer ball is initially moving at 2.05. A soccer player kicks the ball, exerting a constant 40.5 force in the same direction as the ball's motion.

    asked by Anonymous on March 27, 2013
  63. Physics

    A 4.0 kg mud ball drops from rest at a height of 12 m. If the impact between the ball and the ground lasts 0.30 s, what is the average net force exerted by the ball on the ground?

    asked by Anonymous on December 29, 2011
  64. Physics

    A 60 kg soccer player kicks a stationary 0.4 kg ball giving it a speed of 14 m/s. The player's foot is in contact with the ball for 0.08 second. What is the average force on the ball? P.S What formula/s should I use?

    asked by Julie on August 29, 2015
  65. physics

    In a typical golf swing, the club is in contact with the ball for about 0.0010 . If the 45- ball acquires a speed of 57 , estimate the magnitude of the force exerted by the club on the ball.

    asked by Ashley on October 22, 2010
  66. physics!!**

    In a typical golf swing, the club is in contact with the ball for about 0.0015 s. If the 45 g ball acquires a speed of 75 m/s, estimate the magnitude of the force exerted by the club on the ball.

    asked by kelsey on October 12, 2008
  67. physics

    After falling from rest from a height of 30 m, a 0.48-kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?

    asked by adam on February 25, 2013
  68. Physics

    After falling from rest from a height of 30 m, a 0.49 kg ball rebounds upward, reaching a height of 20 m. If the contact between ball and ground lasted 2.5 ms, what average force was exerted on the ball?

    asked by LeVonte on September 12, 2011
  69. Physics

    After falling from rest from a height of 27 m, a 0.53 kg ball rebounds upward, reaching a height of 17 m. If the contact between ball and ground lasted 1.6 ms, what average force was exerted on the ball?

    asked by Anonymous on February 25, 2011
  70. physics

    After falling from rest from a height of 26 m, a 0.49-kg ball rebounds upward, reaching a height of 16 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?

    asked by matt on March 20, 2013
  71. college physics

    if a 12kg ball rolls down a ramp at 3 m/s and crashes into a pillow and it takes 0.65 s to stop the ball what is the momentum of the ball and the force exerted by the pillow? I would like to know the formula on how to figure this out.

    asked by patti on March 15, 2013
  72. college physics

    After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?

    asked by mary on September 21, 2010
  73. college physics

    After falling from rest from a height of 34 m, a 0.47 kg ball rebounds upward, reaching a height of 24 m. If the contact between ball and ground lasted 1.8 ms, what average force was exerted on the ball?

    asked by halley on September 21, 2010
  74. physics

    In a typical golf swing, the club is in contact with the ball for about 0.0010s. If the 45-g ball acquires a speed of 41 m/s, estimate the magnitude of the force exerted by the club on the ball.

    asked by Jason on March 29, 2011
  75. Physics

    After falling from rest from a height of 35 m, a 0.49 kg ball rebounds upward, reaching a height of 25 m. If the contact between ball and ground lasted 1.7 ms, what average force was exerted on the ball?

    asked by Freedo on September 20, 2012
  76. physics

    A small particle of mass 2.0 x 10^-19 kg is attached to a nanofiber of relaxed length 0.50 nm (Recall that 1.0 nm + 10^-9 m) . The nanofiber is the black horizontal line-its attached to a substrate (an immovable wall) on the left. The plot is a graph of

    asked by Maggie on November 22, 2009
  77. Material Science

    A polystyrene ice chest contains 3 kg of ice at 0 degrees Celsius. Triangle H for melting = 3.34 x 10 to the 5 power J/kg p = 1000 kg/m cubed, CP =4190 J/ (kg K). Heat transfer is limited by conduction (k=0.06W/m K)) from the outside wall at 30 degrees

    asked by Joy on August 24, 2013
  78. Physics

    In a typical golf swing, the club is in contact with the ball for about 0.0010s. If the 45-g ball acquires a speed of 59m/s, estimate the magnitude of the force exerted by the club on the ball.

    asked by Amanda on December 2, 2015
  79. Physics

    A vertical spring with a force constant of 250 N/m is compressed 7.5 cm and a 0.30 kg ball placed on top. The spring is released and the ball flies vertically upward. How high does the ball go? (thanks for helping)

    asked by Luis on July 3, 2011
  80. physics

    After falling from rest at a height of 31.5 m, a 0.564 kg ball rebounds upward, reaching a height of 20.2 m. If the contact between ball and ground lasted 1.80 ms, what average force was exerted on the ball?

    asked by sam on February 12, 2014
  81. Physics

    A ball with a mass of 0.25 kilogram is swung on the end of a rope that is 3.0 meters long. The ball travels with a linear velocity of 10.00 meters per second. What centripetal force is acting on the ball?

    asked by Chad on May 29, 2013
  82. physics

    A 0.18 kg ball is placed in a shallow wedge with an opening angle of 110° For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless.

    asked by Alex on January 9, 2012
  83. physics

    A spring gun (k = 27.1 N/m) is used to shoot a 51.1-g ball horizontally. Initially the spring is compressed by 16.5 cm. The ball loses contact with the spring and leaves the gun when the spring is still compressed by 11.5 cm. What is the speed of the ball

    asked by Liz on October 10, 2012
  84. Physics

    A 60-kg soccer player kicks a stationary 0.4 kg ball giving it a speed of 14 m/s. The player's foot is in contact with the ball for 0.08 second. What is the average force on the ball?

    asked by Julie on August 31, 2015
  85. physics

    the tennis ball may leave the racquet on the serve with a speed of 65 m/s. If the ball's mass is 60 g, and it is in contact with the racquet for .030 s, what is the average force on the ball?

    asked by Sammy Palmisano on January 31, 2011
  86. physics

    A hockey puck moving at 37m/s slams through a wall of snow 31cm thick. It emerges moving at 15m/s . Part A Assuming constant acceleration, find the time the puck spends in the snow. Express your answer to two significant figures and include the appropriate

    asked by Anonymous on January 25, 2015
  87. Calculus

    Suppose you are in a room that is a*10 meters. You can walk normally along the "a" meter long wall at "s" meters per second and crab walk in any direction at 1 meter per second. You start at one corner of the room, walk normally along the wall of length

    asked by Sarah on March 25, 2016
  88. college physcial science

    an 8 kg ball rolling at 2m/s bumps into a pillow and stops in 0.5s. Show that the force exerted by the pillow is 32N. How mych force does the ball exert on the pillow?

    asked by Sandi on September 18, 2009
  89. physics 152

    The force exerted by the wind on the sails of a sailboat is 500 N north. The water exerts a force of 150 N east. If the boat (including its crew) has a mass of 290 kg, what are the magnitude and direction of its acceleration?

    asked by polo Q on May 1, 2011
  90. physics

    The force exerted by the wind on the sails of a sailboat is 500 N north. The water exerts a force of 150 N east. If the boat (including its crew) has a mass of 290 kg, what are the magnitude and direction of its acceleration?

    asked by polo Q on February 28, 2011
  91. physics

    The force exerted by the wind on the sails of a sailboat is 370 N north. The water exerts a force of 210 N east. If the boat (including its crew) has a mass of 270 kg, what are the magnitude and direction of its acceleration?

    asked by tommy on September 6, 2010
  92. physics

    A baseball of mass 250g, pitched with a speed of 40m/s, is caught by a catcher, whose glove moves backward 0.25m while stopping the ball. a)what is the kenetic energy of the ball? b)how much work did the catcher's glove do on the ball? c) what was the

    asked by Alemu on December 3, 2009
  93. physics

    block a of mass 4kg is on a horizontal, frictionless tabletop and is placed against a spring of negligible mass and spring constant 650n/m. the other end of the spring is attacked to a wall. the block is pushed toward the wall until the spring has been

    asked by kim on December 6, 2010
  94. Physics

    Which results in a higher force of impact? Assume both collisions are completely inelastic (your car comes to a stop) and both take the same amount of time. A) Running your car at 20 mph into a solid wall B) Running your car head-on at 20 mph into an

    asked by Frustrated on December 6, 2012
  95. Physics

    Which results in a higher force of impact? Assume both collisions are completely inelastic (your car comes to a stop) and both take the same amount of time. A) Running your car at 20 mph into a solid wall B) Running your car head-on at 20 mph into an

    asked by Frustrated on December 6, 2012
  96. math

    6. What is the length of wall studs when the finished floor-to-ceiling height is 8′, ceiling material is ¾″ thick, the finished floor is ¾″ thick, and it's framed with three plates? A. 7′9″ ***B. 8′1½″ C. 8′ D. 7′7½″ I think the

    asked by doug on December 7, 2018
  97. Physics

    A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.81 m from the end of the track after falling a vertical distance h2 = 1.03 m from the end of

    asked by Angela on October 14, 2012
  98. last physics problem!

    A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.93 m from the end of the track after falling a vertical distance h2 = 1.18 m from the end of

    asked by brittany on April 15, 2010
  99. PHYSICS WORK PROBLEM due tonight!! please help!

    A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.93 m from the end of the track after falling a vertical distance h2 = 1.18 m from the end of

    asked by brittany on April 15, 2010
  100. Physics

    A vertical spring with a force constant of 250 N/m is compressed 7.5 cm and a 0.30 kg ball placed on top. The spring is released and the ball flies vertically upward. How high does the ball go? h=________cm (thanks for helping :D)

    asked by Yelliz on July 2, 2011