1. Algebra

    The equation h = -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown upward. How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

    asked by Aaron on November 26, 2016
  2. math

    When a soccer ball is kicked with a vertical speed of 25 m/s its height, h metres, after t seconds is given by the equation h=-5t^2+25t a) how long after it is kicked is the soccer ball at a height of 30 m ? b) How long is the soccer ball in the air?

    asked by Joe on April 15, 2010
  3. Math

    Jack is going to fill his beach ball with water. The radius of the ball is 24in. How much water will it take to fill the beach ball? 4/3 X 3.14 = 4.186 4.186 (24^3) 4.186 X 13,824 Answer: 57,867.264

    asked by Sue on April 5, 2016
  4. Algebra

    The equation h= -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground,at t seconds after the ball is thrown upward.How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

    asked by Anonymous on November 30, 2016
  5. Physics

    A quarterback claims that he can throw the football a horizontal distance of 187 m. Furthermore, he claims that he can do this by launching the ball at the relatively low angle of 32.4 ° above the horizontal. To evaluate this claim, determine the speed

    asked by Samantha on October 5, 2013
  6. Probability

    A nickel is flipped and a dime is flipped. 1. What is the probability of obtaining exactly one head? A bag contains five balls numbered 0 through 4. Two balls are chosen at random in succession. The first ball is replaced before the second is chosen. 1.

    asked by Kyle on February 7, 2013
  7. Math

    A nickel is flipped and a dime is flipped. 1. What is the probability of obtaining exactly one head? A bag contains five balls numbered 0 through 4. Two balls are chosen at random in succession. The first ball is replaced before the second is chosen. 1.

    asked by Kyle on February 7, 2013
  8. Physics

    The composite bar BCD in the figure is fixed at the wall B (x=0), and has constant cross sectional area A_0. The bar is composed by joining, at section C, two segments (BC and CD) of equal length L. Segment CD is homogeneous, made of copper. Segment BC is

    asked by skrillex on July 17, 2016
  9. Geometry

    I realize I'll get a reply in the morning so... A squash ball must have a diameter either 0.5 mm either above or below 40 mm. a) What is the minimum and maximum surface area of a squash ball? Express answer to nearest square millimetre. Minimum: 4902

    asked by Lucina on January 12, 2015
  10. physics

    A car is rounding a circular curve of radius r on a banked turn. As the drawing indicates, there are two forces acting on the car, its weight mg and the normal force FN exerted on it by the road. Which force, or force component, provides the centripetal

    asked by sally on June 1, 2014
  11. Ap Physics

    Read the activity 2-1:Force and Pressure in the lab manual (pages 167-168). As described in the manual, consider a 10 cc syringe is connected to a 50 cc syringe. Information of the syringes are as follows: (mass of 10 cc piston) = 16 g (mass of 50 cc

    asked by Ellie on November 12, 2009
  12. physics

    a force of 200N is inclined at an angle 120° to another force P. The angle between the 200N force and the resultant force is 50°. Find the magnitude of (a) force P (b) resultant of the two forces

    asked by haffy on February 4, 2016
  13. physics

    a force of 200N is inclined at an angle 120° to another force P. The angle between the 200N force and the resultant force is 50°. Find the magnitude of (a) force P (b) resultant of the two forces

    asked by haffy on February 4, 2016
  14. Social Studies

    What evidence from this chapter shows how Arabs and Jews might avoid conflict? A)The land the Jews had conquered had been under the rule of the Arabs for decades, which leaves some of them longing to reclaim the land that was once rightfully theirs. The

    asked by Ryleigh on March 14, 2017
  15. math

    When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -5t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in meters/sec and “k” is the initial height

    asked by Anne on June 15, 2010
  16. algebra 1 NEED NOW!!! PLEASE HELPPP

    The height of a soccer ball that is kicked from the ground can be approximated by the function: y = -12⋅x^2 + 48⋅x where y is the height of the soccer ball in feet x seconds after it is kicked. Find the time it takes the soccer ball to reach its

    asked by lisa on July 1, 2013
  17. algebra 1 NEED NOW!!! PLEASE HELPPP

    The height of a soccer ball that is kicked from the ground can be approximated by the function: y = -12⋅x2 + 48⋅x where y is the height of the soccer ball in feet x seconds after it is kicked. Find the time it takes the soccer ball to reach its maximum

    asked by lisa on July 1, 2013
  18. physics

    an object has a weight of 5.10 Newtons at sea level, where the acceleration due to gravity is 9.81 m/s squared. What is the acceleration due to gravity on the object if it is placed in a spaceship 1,000 km above sea level which gravity exerts a force of

    asked by Matt on September 19, 2014
  19. Physics, check my answer pls

    4. All of the following are true about torque except: A. its units are Newton-meters. B. it can only be produced by a force. C. torque is zero unless the force is pointed perpendicular to the moment arm. D. a force whose line of action passes through the

    asked by Nev on December 6, 2012
  20. ap physics

    Suppose that a person closes a car door. The person's fingers are in the door opening, that is located 0.50 m from the hinges. The rotational inertia of the car door is 5.0 kg⋅m2. The door closes in 0.1 s and the rotational speed of the door is 1.4 rad/s

    asked by clara on March 7, 2017
  21. Physics

    Read the activity 2-1:Force and Pressure in the lab manual (pages 167-168). As described in the manual, consider a 10 cc syringe is connected to a 50 cc syringe. Information of the syringes are as follows: (mass of 10 cc piston) = 16 g (mass of 50 cc

    asked by Anonymous on November 8, 2010
  22. Physics

    Could someone try to help me solve those 3 questions by giving me clues or equations? With what speed (SI Units) must a ball be thrown directly upward so that it remains in the air for 12.5 second? An object of mass 197kg is at rest. If a force of 2.5N is

    asked by cool on January 27, 2010
  23. physics

    A 0.60 kg rubber ball has a speed of 2.0 m/s at point A and kinetic energy of 6.0 J at point B. (a) Determine the ball's kinetic energy at A. J (b) Determine the total work done on the ball as it moves from A to B. J

    asked by Anonymous on January 3, 2011
  24. physics

    An 8 kg ball is moving at 4 m/s. Work is done on the ball to give it a speed of 12 m/s. What is the balls initial kinetic energy? What is the balls final kinetic energy? What work was done on the ball?

    asked by Anonymous on June 30, 2011
  25. Physics

    You throw a ball horizontally off of a building with a horizontal velocity of 5 m/s. What's the ball horizontal velocity 8 seconds later? How high should the building be if you want the ball to fall for a total of 12 seconds?

    asked by Jennifer on June 21, 2011
  26. Physics

    You throw a ball horizontally off of a building with a horizontal velocity of 10 m/s. What is the ball’s horizontal velocity 5 seconds later? How high should the building be if you want the ball to fall for a total of 10 seconds?

    asked by Angel on October 6, 2011
  27. physics

    a child sees an empty soda can resting on the icy surface of a frozen pond and throws a stone at it the stone hits the can which then slides across the ice decreasing in speed as it does so at the edge of the pond the can hits a pile of snow and stops.

    asked by neloum on January 22, 2018
  28. physical science

    during a football game two players try to tackle another player.one player applies a force of 50.0 n to the east. a second player applies a force of 120.0 n to the north . what is the total applied force?and what is themagnitude and direction of the force

    asked by sarah arcand on October 11, 2011
  29. physics

    A science student is riding on a flatcar of a train traveling along a straight horizontal track at a constant speed of 18.0 m/s. The student throws a ball along a path that she judges to make an initial angle of 68.0° with the horizontal and to be in line

    asked by amy on September 18, 2012
  30. math

    Boris throws a ball vertically upward from the top of a cliff. The height of the hall above the base of the cliff is approximated by the model h=65+10t-5t^2, where h is the height in metres and t is the time in seconds. a. How high is the cliff? b. How

    asked by ted on November 24, 2010
  31. physics

    Calculate the angular speed of the rod, the vertical acceleration of the moving end of the rod, and the normal force exerted by the table on the rod as it makes an angle θ = 49.6° with respect to the vertical. b) If the rod falls onto the table without

    asked by please help!!!! on April 3, 2011
  32. physics

    A steroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.5e4kg and the force causes the speed to change from 7100 to 5500m/s. (A) What is the work done by the force? (B)

    asked by Natasha on February 26, 2012
  33. Physics

    During Service, a tennis ball is struck at height, h = 1.95 m, above a tennis court and moves with velocity Vo= Voxi. Assume the ball encounters no air resistance, and use a Cartesian coordinate system with the origin located at the balls initial position.

    asked by Lobna on June 22, 2018
  34. algebra

    im trying to help my son i have no ida about this stuff any help would be great When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v”

    asked by joni on January 12, 2010
  35. 2 balloons and a doubled distance (physics)

    EARLIER SOMEONE POSTED: "Two like-charged balloons, placed at a distance of .5 meters, experience a repulsive force of .32 N. What is the force if the distance between the two balloons is doubled? If you use Coulomb's Law, the equation used to find .32 N

    asked by help! on February 27, 2011
  36. physics

    A 0.700-kg ball is on the end of a rope that is 2.20 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, rotates about the pole's symmetry axis. The rope makes an angle of 70.0° with respect to the vertical

    asked by Adam on May 23, 2012
  37. physics

    A baseball player standing on the ground throws a ball straight up. The ball leaves the player's hand with a speed of 15.5 m/s and is in the air for 3.30 s before hitting the ground. How high above the ground was the baseball player's hand when he released

    asked by niro on September 24, 2015
  38. Physics

    A ball having a mass of 4 kg is attached to a string 1 m long and is whirled in a vertical circle at a constant speed of 23 m/s. (a) Determine the tension in the string when the ball is at the top of the circle. (b) Determine the tension in the string when

    asked by James on June 14, 2012
  39. physics

    A baseball player standing on the ground throws a ball straight up. The ball leaves the player's hand with a speed of 6.22 m/s and is in the air for 2.70 s before hitting the ground. How high above the ground was the baseball player's hand when he released

    asked by lilly on September 28, 2016
  40. algebra

    Fun Lanes Bowling charges a fee of $4 to use their shoes and $6 for each game played. Salim wants to figure out how much it will cost him to bowl. Part 1: Write an equation representing this problem. Let x be the number of games bowled, and let y be the

    asked by danielle swartz on July 13, 2012
  41. english

    Hi, I have a picture in front of me and it is showing how one figure is throwing a radio(like bowling), another jumping over a computer( hurdles) and other is kicking a tv( soccer). The last square says "Healthy mind lives in healthy body". Now, the title

    asked by Yana on January 23, 2009
  42. physics

    Billiard ball A of mass m_A = 0.130 kg moving with speed v_A = 2.50 m/s strikes ball B, initially at rest, of mass m_B = 0.145 kg. As a result of the collision, ball A is deflected off at an angle of 31.0 degree, with a speed v_A1 = 2.05 m/s. Write down

    asked by Caylee on April 24, 2012
  43. Physics

    1. What happens to the stack of books if the applied force exceeds the maximum static frictional force? 2. What is the minimum size for the static frictional force, and under what conditions will the minimum static frictional force be observed? 3. What

    asked by Sarah on May 11, 2017
  44. Physics

    A boy kicks a rock off a cliff with a speed of 19.4 m/s at an angle of 52.5° above the horizontal. The rock hits the ground 5.41 s after it was kicked. a) How high is the cliff? (I found the height to be 60.3 m) b) What is the speed of the rock right

    asked by Anonymous on February 5, 2011
  45. physics

    A stone thrown horizontally from the top of a 18-m tower hits the ground at a point 18 m from the base of the tower. (Ignore any effects due to air resistance.) (a) Find the speed at which the stone was thrown. m/s (b) Find the speed of the stone just

    asked by Anonymous on December 4, 2014
  46. Physics

    A stone thrown horizontally from the top of a 18-m tower hits the ground at a point 18 m from the base of the tower. (Ignore any effects due to air resistance.) (a) Find the speed at which the stone was thrown. m/s (b) Find the speed of the stone just

    asked by Anonymous on December 3, 2014
  47. physics

    A disk shaped yoyo (m=220 grams) has a 70 cm long string. The radius of the central winding peg is 2.5 mm, the outer radius of the yoyo is 5.6 cm. A) How much Torque is applied to this yoyo by the string? B) How long until the yoyo hits the bottom of the

    asked by Anonymous on November 15, 2015
  48. Physics

    So, "a uniform steel rod of length 1.20 meters and mass 6.40 kg has attached to each end a small ball of mass 1.06 kg. The rod is constrained to rotate in a horizontal plane about a vertical axis through its midpoint." There's more to the question, but the

    asked by Nora on March 30, 2015
  49. Physics

    A quarterback claims that he can throw the football a horizontal distance of 183 m (200 yd). Furthermore, he claims that he can do this by launching the ball at the relatively low angle of 35° above the horizontal. To evaluate his claim, determine the

    asked by Lindsay on February 9, 2011
  50. AP Physics

    Hi, I have the follwoing physics question to ask, Plesae help with hints. "Two people are standing on a 2.5-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air, like a hovercraft. One person throws a 5.9-kg ball

    asked by Indi on November 4, 2009
  51. Science (Force and motion)

    Explain how acceleration can be slowing down. Calculate the impact force of a 50 kg object travelling at 100km/hr. (Momentum = mass x velocity) Calculate the momentum of a tennis ball of 50 g moving at a velocity of 25m/s.

    asked by maria on May 3, 2011
  52. physics

    On the Apollo 14 mission to the moon, astronaut Alan Shepard hit a golf ball with a golf club improvised from a tool. The free-fall acceleration on the moon is 1/6 of its value on earth. Suppose he hit the ball with a speed of 25 m/s at an angle 24 ∘

    asked by raquel on October 1, 2015
  53. physics

    5) After catching the ball, Sarah throws it back to Julie. The ball leaves Sarah's hand a distance 1.5 meters above the ground, and is moving with a speed of 22.0 m/s when it reaches a maximum height of 9.0 m above the ground. What is the speed of the ball

    asked by Jake on September 10, 2012
  54. Chemistry

    A ball bearing at 22.0 Celsius is dropped into a cup containing 250.0 g of water at 20.0 Celsius. The water and ball bearing come to a temperature of 30.0 Celsius. What is the heat capacity of the ball bearing in J/Celsius? How do I do this kind of

    asked by Aurora on October 31, 2015
  55. Physics

    a 1.5kg cannon is mounted on top of a 2.0kg cart and loaded with a 52.7 gram ball. The cannon, car, and ball are moving forward with a speed of 1.27m/s. The cannon is ignited and launches a 52.7 gram ball forward with a speed of 75m/s. Determine the

    asked by Sarah on April 29, 2012
  56. Physics

    a 1.5kg cannon is mounted on top of a 2.0kg cart and loaded with a 52.7 gram ball. The cannon, car, and ball are moving forward with a speed of 1.27m/s. The cannon is ignited and launches a 52.7 gram ball forward with a speed of 75m/s. Determine the

    asked by Sarah on April 30, 2012
  57. algebra

    Suppose the ball was 2.74 feet above ground when it was hit. It reached a max. height of 116.3ft when it was approx 215.3 ft away from where he hit the ball. The ball lands after travelling a ground distance of approx 433.1 ft. -- find an equation in form

    asked by Jennifer on October 8, 2011
  58. physics

    I would tell you the steps I've taken so far but I have no idea where to even start. Any help is appreciated! Thanks! A uniform 33.5-kg beam of length = 4.15 m is supported by a vertical rope located d = 1.20 m from its left end as in the figure below. The

    asked by Anna on June 16, 2012
  59. physics

    a physics book is on top of a drafting table at 35 degree angle. Find the net external force acting on the book and determing wether the book move or remain at rest on this position. they give you: force of friction 11N, force normal 18N,force of gravity

    asked by Grace on January 16, 2011
  60. Physics

    You are a general in the Napoleonic wars. An enemy fort 10m tall is located 1000m from your cannon. Your cannon expert is insisting that you will get the best results at an angle of 25 above the horizontal. Your cannon is located on a hill 10m tall. You

    asked by Michelle on February 22, 2014
  61. Physics

    You are a general in the Napoleonic wars. An enemy fort 10m tall is located 1000m from your cannon. Your cannon expert is insisting that you will get the best results at an angle of 25 above the horizontal. Your cannon is located on a hill 10m tall. You

    asked by Michelle on February 19, 2014
  62. physics

    A person standing at the top of a hemispherical rock of radius R = 5.00 m kicks a ball (initially at rest on the top of the rock) to give it horizontal velocity vi. (a) What must be its minimum initial speed if the ball is never to hit the rock after it is

    asked by Anonymous on February 16, 2011
  63. physics

    A small steel ball bearing with a mass of 10 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.19 m. Calculate the speed at which the ball leaves the spring. Calculate the

    asked by Anonymous on September 22, 2010
  64. algebra

    Library Assignment When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in ft/sec and “k” is the

    asked by hilda on January 18, 2010
  65. physics

    A ball is tossed from an upper-story window of a building. The ball is given an initial velocity of 9.50 m/s at an angle of 24.0° below the horizontal. It strikes the ground 5.00 s later. (a) How far horizontally from the base of the building does the

    asked by micole on May 16, 2007
  66. physics

    A solid ball is released from rest and slides down a hillside that slopes downward at an angle 52.0 from the horizontal.What minimum value must the coefficient of static friction between the hill and ball surfaces have for no slipping to occur?

    asked by amena on May 29, 2011
  67. Physics

    A juggler performs in a room with a ceiling 2m abouve hand level. A. what is the maximum upward speed she can give the ball without hitting the celing. B. what is the time spent in the air before the ball is caught?

    asked by Anonymous on October 22, 2009
  68. Physics

    A player bounces a basketball on the floor, compressing it to 80.5 % of its original volume. The air (assume it is essentially N2 gas) inside the ball is originally at a temperature of 20.0∘C and a pressure of 2.00 atm. The ball's diameter is 24.4 cm .

    asked by ZHAO on December 4, 2018
  69. Mechanics

    A soccer player kicked a ball at an angle of 37 to the horizontal if the range covered by the ball is 240.3m calculate What is the initial velocity of projection? The time of flight? The maximum leight attained

    asked by Ikpa olaguaziba on March 31, 2019
  70. physics

    A ball of mass 200 grams is whirled in a circle at the end of a strong 100 cm long rope whose breaking strength is 10 N. Neglecting gravity, the maximum speed of the ball is approximately.

    asked by Brittany on September 11, 2010
  71. physics

    A major-league pitcher can throw a ball in excess of 36.2 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches a catcher who is 17.0 m away from the point of release? I got -1.08 for the answer but my book is

    asked by Shannon on September 23, 2012
  72. Physics

    A ball is thrown upward from the ground with an initial speed of 21.5 m/s; at the same instant, a ball is dropped from rest from a building 17 m high. After how long will the balls be at the same height? The acceleration of gravity is 9.81 m/s2. Answer in

    asked by Anonymous on October 5, 2010
  73. physics

    A 0.200 m long string that has a ball attached to it is spinning around on a flat horizontal plane. It spins over a 116° angle in 0.360 s. What is the centripetal acceleration of the ball if it is in uniform circular motion?

    asked by Physics Lover on November 24, 2016
  74. Physics

    A ball is thrown straight up from the ground with an initial velocity of 30.4 m/s; at the same instant, a ball is dropped from the roof of a building 21.1 m high. After how long will the balls be at the same height? The acceleration of gravity is 10 m/s2.

    asked by Kaleigh on January 28, 2012
  75. physics

    When a ball is thrown upward, it experiences a downward accelera- tion of magnitude 9.8 m/s 2 , neglecting air resistance. With what velocity must a ball leave a thrower’s hand in order to climb for 2.2 s before stopping?

    asked by Anonymous on January 20, 2015
  76. physics

    a boy standing on the tray of a utility travelling at 5 ms throws aa ball vertically upwads with a velocity of 7.35ms (relative to himself) and catches it again at the same level. what horizontal distance does the ball move while it is in the air

    asked by Anonymous on February 13, 2014
  77. Biology/Chemistry

    What kind of isomers can amino acids form? Which isomer is present in most living organisms? don't major compounds of living organisms consist of modifications of hydrocarbons Although D amino acids can be found in nature, only the L isomers are used to

    asked by Raj on February 21, 2007
  78. college algebra

    When a ball is thrown up into the air, it makes the shape of a parabola. The equation S= -16t^2 + v*t + k gives the height of the ball at any time, t in seconds, where “v” is the initial velocity (speed) in ft/sec and “k” is the initial height in

    asked by Sherry on January 15, 2010
  79. Probability

    The probability that Robin hits the target is 0.6. The probability that John hits the target is 0.3. The probability that Robin hits the target and John does NOT hit the target is?

    asked by Anna on November 14, 2009
  80. math

    Dree rolls a strike in 6 out of the 10 frames of bowling. What is the experimental probability that Dree will roll a strike in the first frame of the next game? Explain why a number cube would not be a good way to simulate this situation. THANKS!!

    asked by kimie on February 3, 2016
  81. Math

    Sam rolls a strike in 6 of the 10 frames of bowling What is the experimental probability that Sam will roll a strike in the first frame of the next game ? Explain why a number cube would not be a good way to simulate this situation Please help !!!!😖

    asked by Kim on March 2, 2015
  82. Math

    Dree rolls a strike in 6 out of the 10 frames of bowling. What is the experimental probability that Dree will roll a strike in the first frame of the next game? Explain why a number cube would not be a good way to simulate this situation.

    asked by Anonymous on March 1, 2016
  83. Physics

    A car is driving on a level highway. It is acted upon by the following forces: a downward gravitational force of 12 kN, an upward contact force due to the road of 12 kN, another contact force due to the road of 7 kN directed West, and a drag force due to

    asked by HArley on October 3, 2014
  84. Physics Help Please!!!!

    A car is at rest on a horizontal road. What is the value of the frictional force? Explain your answer. A bison stands at rest on the horizontal ground. What is the value of the frictional force? Explain. The normal force always has a direction

    asked by Tom on October 9, 2014
  85. physics

    Two objects are connected by a light string passing over a light, frictionless pulley as in the diagram. m1 = 4.50 kg, m2 = 2.10 kg, and h = 4.30 m. The 4.50 kg object is released from rest at a point 4.30 m above the floor. Determine the speed of each

    asked by Anonymous on October 25, 2010
  86. physics

    Two objects (m1 = 5.15 kg and m2 = 2.75 kg) are connected by a light string passing over a light, frictionless pulley as in the figure below. The 5.15-kg object is released from rest at a point h = 4.00 m above the table. (a) Determine the speed of each

    asked by dennis on October 11, 2011
  87. PHYSICS

    Two objects (m1 = 4.90 kg and m2 = 2.75 kg) are connected by a light string passing over a light, frictionless pulley as in the figure below. The 4.90-kg object is released from rest at a point h = 4.00 m above the table. (a) Determine the speed of each

    asked by Lindse on February 25, 2013
  88. English

    Shy I, with earth, share mirth Muse over goodwill's dearth Meaning sinning find in few Due to high IQ, I find you in long queue Bird herd shepherd owl eerie make night dreary Lone lamppost Tree big bloom bird host Hello shallow call wall view On frond

    asked by Briana on November 12, 2009
  89. English

    Can you please check these other sentences? Thank you. 1) Jasmine admits that people are ofen intolerant towards (of) albinos. She thinks it is better not to be very sensitive and not to take people's comments too hard (I don't know how to express it). 2)

    asked by Henry2 on October 6, 2011
  90. Physics

    What happens to the force between the charges if the distance between the charges is increased to two times its original value? Value of the force is increased by two. Value of the force is decreased by two. Value of the force is decreased by four. Value

    asked by I'm bad at physics on October 19, 2012
  91. English

    Word bank: adverse arid assailant billow confront constrain contemporary depict disinterested encompass groundless hypocrite incomprehensible manipulate maximum mimic ruffle serene sheepish stamina You talk so fast and low that you are going to be

    asked by Jerald on September 19, 2012
  92. Science

    True / False: If a 40 kg person is accelerating at 10 m/s^2,then the magnitude of the force acting on him or her is 400 N. 1.How much force is needed to make a 60 kg object accelerate at a rate or 2.0 m/s ^2? 2.What is the acceleration of a 30 kg objedct

    asked by Makayla<3 on January 27, 2015
  93. statistics

    4. The Pew Research Center reported that 57% of Americans favored the Wall Street bailout of 2008. A random sample of 300 people showed that 155 people favored the bailout. If appropriate, test whether the population proportion of Americans is different

    asked by ali awan on May 8, 2013
  94. mathvariation 2(steve,reiny,reed) pls I need help!

    the force E needed to make a machine pull a load is partly constant and partly varies as the load to be pulled itself.when the load is 20g,the force needed is 1.4n,where as the force needed for 30g load is 2N. Find the: A)law connecting the load and the

    asked by cynthia on April 30, 2017
  95. English

    I wanted to know of the various alternatives are possible? In question 5 I just wanted to know how I can calculate time before and after the birth of Christ. Thank you. 1)The Roman Emperor Hadrian had a wall built to keep the Scottish out. (to defend Roman

    asked by Henry2 on September 5, 2011
  96. Physics

    Physics Help!!!!! Maximum Kinetic Energy based on a graph? A 2.50kg ball is attached to an unknown spring and allowed to oscillate. The figure shows a graph of the ball’s position x as a function of time t.(Figure 1) Part A: What is the maximum kinetic

    asked by Darren on May 1, 2013
  97. Physics

    A ball rolling on an inclined plane dors so with constant acceleration. One ball, A, is released from rest on the top of an inclined plane 18m long to reach the bottom 3s later. At the same time as A is released, another ball, B, is projected up the same

    asked by Edward.Oki on March 24, 2013
  98. Physics

    For a science fair competition, a group of High School students built a kicker-machine that can launch a golf ball from the origin with a velocity of 12.9 m/s and initial angle of 31.7° with respect to the horizontal. a) Where will the golf ball fall back

    asked by Tim on January 27, 2015
  99. Math

    If the flight of a rocket can be modelled by the function h=-4.9t^2+49t+2.5. Where h is height in meters and t is time in seconds. How long was the rocket above 100m? I know that you have to find the two times when the rocket hits 100m. And then subtract

    asked by Anonymous on March 29, 2015
  100. Physics

    A 4.00 103-kg car has a speed of 9 m/s. The car then hits a tree. The tree doesn't move and the car comes to rest. (a) Find the change in kinetic energy of the car. . J (b) Find the amount of work done in pushing in the front of the car. J (c) Find the

    asked by Haley on May 10, 2012