1. Math

    A: The variables x and y vary directly. When x is 3, y is 6. Find x when y = 2/3. B: The force acting on an object varies directly with its acceleration. A force of 25 newtons accelerates an object at 1.25 m/s. What is the acceleration of a 35 newton

    asked by Anonymous on February 26, 2017
  2. science.......,,....

    train with mass of 120mg accelerates uniformly on a horizontal track. The resistance to movement is 5N per kN of the mass of the train. The force in the draw-bar locomotive is 80kN Calculate a. The force required for constant speed b. The force that causes

    asked by aneleeeee on April 7, 2015
  3. Physics

    Two strong magnets on opposite sides of a small table are shown. The long-range attractive force between the magnets keeps the lower magnet in place. Suppose the weight of the table is 26.1 N, the weight of each magnet is 8.99 N, and the magnetic force on

    asked by Anonymous on October 25, 2008
  4. physic

    A force of 20 newtons is exerted on a chair from its right and a force of 12 newtons is applied from its left. What is the net force acting on the chair and in what direction will the chair tend to move?

    asked by kiandra on November 27, 2012
  5. Trigonometry

    A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°. What is the angle that the resultant makes with the 175-pound force? A. 22° B. 24° C. 32° D. 18°

    asked by Cyndy on August 1, 2012
  6. physics

    A bookshelf is at rest in a room. A force of 35.0 newtons is applied to a bookshelf. If the floor imparts a frictional force of 2.90 newtons, what is the net force acting on the bookshelf?

    asked by corey on March 24, 2014
  7. trig, math

    A 175-pound force and a 230-pound force are acting on the same point in directions that differ by 42°. What is the angle that the resultant makes with the 175-pound force?

    asked by John on July 3, 2013
  8. Physics

    A small ball is launched at an angle of 30.0 degrees about the horizontal. It reaches a maximum height of 2.5m with a respect to the launch position. What is the initial velocity of the ball when its launched? What is the range, defined as a horizontal

    asked by Chris on January 18, 2012
  9. Physics

    A small ball is launched at an angle of 30.0 degrees about the horizontal. It reaches a maximum height of 2.5m with a respect to the launch position. What is the initial velocity of the ball when its launched? What is the range, defined as a horizontal

    asked by Amy on January 18, 2012
  10. phyis

    a 5 gram rubber ball is released from a height of 7 meter above flat surface on the moon. gravitational acceleration on the moon is 1.62 meters per second squared. assume that no energy is lost from frictional drag. what is the velocity, in units of meters

    asked by ahmed on February 17, 2016
  11. Physics and Math

    A small ball with a mass of 1 kg rolls down a long frictionless inclined ramp, which is at an angle 3o Degree above the horizon. A linear spring, whose length is not negligible, is attached to the bottom of the ramp. The ball is released from a distance of

    asked by Anonymous on January 8, 2015
  12. calculus

    If a ball is thrown straight up into the air with an initial velocity of 70 ft/s, it height in feet after t second is given by y = 70 t - 16 t^2. Find the average velocity for the time period begining when t = 1 and lasting (i) 0.1 seconds (ii) 0.01

    asked by Anonymous on September 14, 2011
  13. Math

    Please help if you can. If a ball is shot projected straight upward at a rate of 64 feet per second from a rooftop, 80 feet above ground level, the height of feet above ground is modeled by the equation, h(t)=-16t^2+64t+80 Find h(0), h(1),h(2) Use the

    asked by A.J. on November 21, 2009
  14. Physics

    A boy is trapped in a large area of very soft mud. A man rescues the boy by crawling across a long, light board rather than by walking into the mud. What effect, if any does the board have on the force and the pressure on the mud, compared with walking? A.

    asked by John on January 15, 2015
  15. Language Arts Please Help

    Write compound after each compound sentence. Write complex after each complex sentence. Underline the word that joins the two clauses in each sentence. 1. All players are important to a team, but the pitcher may be the most important.-Compound sentence and

    asked by Patrick on November 5, 2015
  16. English

    Can you please check this paragraph I summarized myself from an internet site called euronews. I think it can be useful to revise passive tenses and, of course, to keep up to date with what happens in Japan. 1.A 10-meter tsunami slammed into the Japanese

    asked by Mike on March 13, 2011
  17. PHYSICS

    A 100 kg box on the right and a 50 kg box on the lift are tied together by a horizontal cable. The 100 kg box is acted upon by an external force of 500 N to the right. The fritional force exerted by the floor on the 100 kg box is 30 N and the froctional

    asked by LESTER on October 3, 2016
  18. Math

    1. The variables x and y vary directly. When x is 3, y is 6. Find x when y = 2/3. 2. The force acting on an object varies directly with its acceleration. A force of 25 newtons accelerates an object at 1.25 m/s. What is the acceleration of a 35 newton

    asked by Mathew on February 26, 2017
  19. physics

    the resultant force due to action of four forces is f1 which is 100N, along the negative y-axis.three of the force are 250N,320 above the x-axis,100N,60 above the x-axis, 200N, 140 above the x-axis find the fourth force

    asked by Anonymous on January 26, 2014
  20. Math

    Lauren is pulling on a trunk with a 15-N force. Wayne pulls at right angles to Lauren. With how much force must Wayne pull to make the resultant force on the trunk 22 N? Round answer to one decimal place.

    asked by C on June 2, 2011
  21. Physics- Coulomb's Law

    1) Particles of charge Q1 = +77 µC, Q2 = +44 µC, and Q3 = -80 µC are placed in a line. The center one (Q2) is 0.35 m from each of the others. Calculate the net force on Q1 and Q2 due to the other charges. a) Force on Q1 Magnitude b) Force on Q2

    asked by Kristal on April 29, 2013
  22. phyics

    A tennis player places a 68kg ball machine on a frictionless surface. the machine fires a 0.057 kg tennis ball horizontally with a velocity of 38m/s toward the north. What is the final velocity of the machine? I used p1+p2=P1'+p2' but I can't seem to get a

    asked by jay on January 8, 2018
  23. h.s physics

    a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to

    asked by JACK on April 15, 2012
  24. h.s. physics

    a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to

    asked by JACK on April 15, 2012
  25. physics help !

    a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to

    asked by JACK 33 on April 15, 2012
  26. Algebra 1

    A baseball is thrown into the air with an upward velocity of 30 ft/s. Its height h, in feet, after t seconds is given by the function h=-16t^2+6. How long will it take the ball to reach its maximum height? What is the ball's maximum height? What is the

    asked by Bella on February 26, 2018
  27. Science

    person is watching through a window of an apartment sees a ball that rises vertically upward and then vertically down for a total time of 0.5 seconds. if the height of the window is 2 metre, find the max height above the window reached by the ball

    asked by Shivam on May 16, 2017
  28. Physics

    A ball leaves a table with an initial horizontal velocity of 2.4m/s. The height of the table is adjustable. In two runs, the height of the table is set at 2.5m and 5.0m respectively. Assume air resistance is negligible. What is the horizontal distance

    asked by Tim on May 8, 2014
  29. physics

    An 9.20kg ball, hanging from the ceiling by a light wire 115 long, is struck in an elastic collision by a 1.20kg ball moving horizontally at 6.00m/s just before the collision. Find the tension in the wire just after the collision.

    asked by Anonymus on March 14, 2012
  30. Calculus

    A kicker is setting up for a field goal. The goal is 120 feet away and 10 feet high. The kicker can give an initial speed of 75 ft/s to the ball. What range of angles of elevation are possible to kick the ball so it passes over the goal?

    asked by Dean on October 6, 2010
  31. Physics

    A ball of mass 8.0kg is suspended by two wires from a horizontal arm of 0.8m, which is attached to a vertical shaft. If wire 1 is 0.6m and wire 2 is 1.0m, what is the tension of wire 1 if the vertical shaft is in uniform rotation about its axis such that

    asked by Matt on November 7, 2017
  32. physics

    A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The horizontal distance between the two towers is 20 meters. With what horizontal velocity should the ball be imparted so that it lands on

    asked by ashley on June 2, 2013
  33. physics

    A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The horizontal distance between the two towers is 20 meters. With what horizontal velocity should the ball be imparted so that it lands on

    asked by Lauren01 on February 22, 2012
  34. physics

    A ball is released from a tower at a height of 100 meters toward the roof of another tower that is 25 meters high. The horizontal distance between the two towers is 20 meters. With what horizontal velocity should the ball be imparted so that it lands on

    asked by antonio on February 5, 2015
  35. Physics

    A tennis player places a 58 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.068 kg tennis ball horizontally with a velocity of 31.6 m/s toward the north. What is the final velocity of the machine? ______m/s to the south

    asked by Becky on March 21, 2011
  36. more physics ):

    A tennis player places a 51 kg ball machine on a frictionless surface, as shown below. The machine fires a 0.067 kg tennis ball horizontally with a velocity of 33.4 m/s toward the north. What is the final velocity of the machine? Can you please EXPLAIN how

    asked by Allison on December 15, 2011
  37. Math

    During softball practice, a softball pitcher throws a ball whose height can be modeled by the equation h = -16t^2 (

    asked by Waleed on May 9, 2012
  38. calculus

    A ball has bounce coefficient 0 < r < 1 if when it is dropped from height h, it bounces back to a height of rh. Suppose that such a ball is dropped from an initial height a and subsequently bounces infinitely may times. Find the total up-and-down distance

    asked by fred on July 18, 2010
  39. algebra 2

    Lizette drops a ball from a height of 256 feet. The peak height after each bounce is 75% the previous height. How much vertical distance does the ball travel from the time she drops it until it touches the ground after its fourth bounce

    asked by Kathy on April 9, 2014
  40. Twelfth Grade Physics

    A ball is kicked toward Ryan with an initial velocity of 21.0 m.s at an angle of 41 degrees above the horizontal. At that instant, Ryan is 51.0m from the kicker. In what direction, and with what constant velocity, should Ryan run in order to catch the ball

    asked by Cooper on September 27, 2007
  41. physics

    Two balls of equal mass collide and stick together as shown in the figure. The initial velocity of ball B is twice that of ball A. (Take è = 34°.) (a) Calculate the angle above the horizontal of the motion of mass A + B after the collision. 1 Units are

    asked by important on February 25, 2011
  42. Physics

    An electrostatic force of 5 N exists between two identical point charges, each of mass 0.01 g, placed 4 mm apart. a.) Find the magnitude of each charge. b.) One of these charges is placed into a magnetic field. Assuming that the charge has a speed of 50

    asked by Nathaniel on June 12, 2006
  43. physics - so important

    In which of these cases is a youngster doing work in the school gymnasium? climbing up a rope lifting a set of weights from the floor to overhead PLEASE HELP ME? i NEED TO KNOW THiS FOR A TEST TOMORROW iN PHYSiCS & i CANT SEEM TO FiND THE ANSWER ANYWHERE &

    asked by maria on January 15, 2007
  44. PYSICS

    The upward normal force exerted by the floor is 600 N on an elevator passenger who weighs 610 N. What is the reaction force to the upward normal force exerted by the floor? What is the reaction force to weight of the passenger? What is the magnitude of the

    asked by Ruth on October 19, 2011
  45. Physics science

    Dana and Gina are pushing on a box. Dana pushes with 250 N of force and Gina pushes with 100 N of force. A. What is the net force if tey both push the box in the same direction. B. what is the net force if they push in the opposite directions?

    asked by Ashley on September 27, 2012
  46. physics

    A 50-kg box is being pushed a distance of 7.1 m across the floor by a force whose magnitude is 175 N. The force is parallel to the displacement of the box. The coefficient of kinetic friction is 0.19. Determine the work done on the box by each of the four

    asked by Anonymous on March 11, 2014
  47. Physics

    A spring is 16.2 cm long when it is lying on a table. One end is then attached to a hook and the other end is pulled by a force that increases to 28.0 N , causing the spring to stretch to a length of 19.0 cm . Part A What is the force constant of this

    asked by Jess on November 24, 2017
  48. Physics

    A bronze cannon ball with a mass of 4.5 kg is fired vertically from a small cannon and reaches a height of 10.0 m. If the canon is now aimed at an angle 33 degrees above the horizontal, calculate the horizontal distance the cannon ball would travel before

    asked by Yarielis on March 8, 2014
  49. Interaction of Forces

    The ball in the image below is rolling toward the block. The ball will create a disturbance in the stability of the block by knocking it over. Which of the following correctly predicts what will happen to the block? [image of ball rolling toward tall,

    asked by Anonymous on April 16, 2015
  50. science 8th (:: 1 question

    The ball in the image below is rolling toward the block. The ball will create a disturbance in the stability of the block by knocking it over. Which of the following correctly predicts what will happen to the block? [image of ball rolling toward tall,

    asked by XenaGonzalez on April 20, 2015
  51. physics

    A large crate filled with physics laboratory equipment must be moved up an incline onto a truck. 1. The crate is at rest on the incline. What can you say about the force of friction acting on the crate? 2.A physicist attempts to push the crate up the

    asked by madaline on February 1, 2011
  52. Science

    A fixed, single pulley that is used to lift a block does which one of the following? A. doubles the force required to lift the block B. decreases the force required to lift the block C. makes the block easier to lift by changing the direction of the force

    asked by Cassie on April 10, 2013
  53. Physics IB

    Two billiard balls of equal mass undergo a perfectly elastic head-on collision. If the speed of ball 1 was initially 5.00 m/s, and that of ball 2 was 7.00 m/s in the opposite direction, what will be their speeds after the collision? I figured out how to

    asked by Adina on October 17, 2012
  54. Physic II

    Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and suspended from the same point, as shown in Fiq.2. They repel each other and hang with separation 50.0 cm. The length of the

    asked by sakne67 on January 26, 2014
  55. physic

    Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and suspended from the same point, as shown in Fiq.2. They repel each other and hang with separation 50.0 cm. The length of the

    asked by sila on January 29, 2014
  56. Physic

    Two volleyballs, each of mass 0.300 kg, are charged by an electrostatic generator. each is attached to an identical string and suspended from the same point, as shown in Fiq.2. They repel each other and hang with separation 50.0 cm. The length of the

    asked by Alia on January 27, 2014
  57. PHYSICS 1 ..lab helllpppppppp

    1.described the motion of mud that flies off from a rapidly spinning wheel. 2.explain why the outer rail is higher than the inner rail of curve in a railroad track. 3. a 5kg mass is moving in a circle of a radius 3m at a speed of 30 m/sec.determine the

    asked by JORHO on January 28, 2013
  58. physics PLEASE HELP (very very confused)

    2 blocks are connected by a rope of negligible mass are being dragged by a horizontal force. Suppose F= 68.0N, m1= 12.0kg, m2= 18.0kg and the coefficient of kinetic friction between each block and the surface is 0.100. a.) draw free body diagram for each

    asked by ~christina~ on October 17, 2007
  59. science equation

    I don't think I have enough information to answer this question but my teacher says i do. The question is, If I drop a ball off of the AUL building and it take 8 seconds to hit the ground what is the velocity of the ball? I know that v=d/t so I have v=d/8

    asked by Alli on December 5, 2011
  60. physics

    a child drops a toy at rest from a point 4m above the ground at the same instant her friend throws a ball upward at 6m/s frrom a point 1m above the ground. at what distance above the ground do the ball and the toy cross paths?

    asked by Michael Lipa on June 17, 2014
  61. English

    1. The man is drawing cartoons on a drawing board. He has a pen on his right ear. What do you think he is doing? (Would you check this writing?) 2. The dogs are playing with balls. 3. Each dog is playing with a ball. 4. The dogs are playing with a ball.

    asked by rfvv on May 22, 2012
  62. physics

    A tennis player places a 55 kg ball machine on a frictionless surface. The machine fires a 0.065 kg tennis ball horizontally with a velocity of 55 m/s toward the north. What is the final velocity of the machine? Enter your answer here: m/s

    asked by em on May 1, 2011
  63. Science

    a person watching through a window of an apartment sees a ball that rise vertically up then vertically down for a total time of0.5s.if the hieght of the window is 2m ,find the max hieght reached by ball above the window

    asked by Tttt on November 28, 2016
  64. physics

    A tennis player places a 60 kg ball machine on a frictionless surface. The machine fires a 0.053 kg tennis ball horizontally with a velocity of 43 m/s toward the north. What is the final velocity of the machine? Answer in units of m/s

    asked by Anonymous on December 10, 2011
  65. college

    A baseball pitcher throws a baseball with a speed of 38 . In throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 , from behind the body to the point where it is released Estimate the average acceleration of the ball

    asked by Anonymous on September 20, 2010
  66. physics

    A tennis player places a 55 kg ball machine on a frictionless surface. The machine fires a 0.065 kg tennis ball horizontally with a velocity of 55 m/s toward the north. What is the final velocity of the machine? Enter your answer here: m/s

    asked by em on May 1, 2011
  67. physic

    a baseball pitcher throws a baseball with a speed of 4m/s.Estimate the average acceleration of the ball during the throwing motion.In throwing the baseball,the pitcher accelerates the ball through a displacement of about 3.5m,from behind the body to the

    asked by noah on June 23, 2011
  68. Physics

    A tennis player places a 64 kg ball machine on a frictionless surface. The machine fires a 0.051 kg tennis ball horizontally with a velocity of 36 m/s toward the north. What is the final velocity of the machine? Answer in units of m/s

    asked by Timmy on November 30, 2011
  69. physics

    Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent's face, if the glove and face compress 7.00 cm during a blow in which the 8.00 kg arm and glove are brought to rest from an initial

    asked by Amelia on April 10, 2012
  70. Physics

    When a given object moves a circular path, the centripetal force varies directly as the square of the velocity and inversely as the radius of the curve. If the force is 640lb for a velocity of 20mi/h and a radius of 5m, find the force for the velocity of

    asked by Bernice Nicole on December 18, 2013
  71. physics

    a window washer pushes his scrub brush up a vertical window at a constant speed by applying a force f. the brush weighs 8N and the coefficient of friction is 0.4. calculate a) the magnitude of the force f. b) the normal force exerted by the window on the

    asked by flay on January 2, 2013
  72. Math-Algebra

    When a given object moves a circular path, the centripetal force varies directly as the square of the velocity and inversely as the radius of the curve. If the force is 640lb for a velocity of 20mi/h and a radius of 5m, find the force for the velocity of

    asked by Bernice Nicole on December 18, 2013
  73. Physics

    When a given object moves a circular path, the centripetal force varies directly as the square of the velocity and inversely as the radius of the curve. If the force is 640lb for a velocity of 20mi/h and a radius of 5m, find the force for the velocity of

    asked by Bernice Nicole on December 18, 2013
  74. balls in a bowl probability

    Bowl one contains 3 black and 2 white balls. Bowl two contains 4 black and 5 white balls. Experiment: A ball is randomly selected from bowl one, its color noted, and it is placed in bowl two. Then a ball is randomly selected from bowl two. a.) What is the

    asked by Aubrey on November 20, 2006
  75. Math

    A bag contains 5 balls,8 white balls, 9 green balls,7 blue balls& 6 yellow balls.A ball is drawn at random .Find the probablity that the ball in neither green nor red ?

    asked by Rajit Rastogi on March 8, 2012
  76. physics question

    I have a question about a problem regarding Newton's third law. a. An iron rod is held up by a magnet. The magnet is held up by a string (from a ceiling, let's say). Draw a free-body diagram for the magnet and a separate free-body diagram for the iron rod.

    asked by Kim on November 21, 2006
  77. physics help

    A helicopter 7.60 above the ground and descending at 3.90 drops a package from rest (relative to the helicopter). We have chosen the positive positive direction to be upward. The package falls freely. A)Just as it hits the ground, find the velocity of the

    asked by joe on January 19, 2012
  78. AP Physics

    The length of the cannon barrel is 1.7 m and the cannon is aimed at a 38◦angle from the ground.The acceleration of gravity is 9.8 m/s^2. If Dread Pirate Roberts tells you he wants the ball to leave the cannon with speed V-not = 76 m/s, what mass cannon

    asked by Connor on November 4, 2016
  79. physics

    A ball, of mass 0.13Kg, is held on the inside of a smooth hemispherical bowl at a height 0.25 m above the base. It is then released. Assuming there is no friction, the acceleration due to gravity, g, is 10 m/s2 and the potential energy is zero at the base

    asked by Jimmy on November 22, 2011
  80. physics

    A football is thrown from the edge of a cliff from a height of 22 m at a velocity of 18 m/s [39degrees above the horizontal]. A player at the bottom of the cliff is 12 m away from the base of the cliff and runs at a maximum speed of 6.0 m/s to catch the

    asked by Louis on February 23, 2014
  81. college physics

    During a circus act, an elderly performer thrills the crowd by catching a cannon ball shot at him. The cannon ball has a mass of 10.0 kg and the horizontal component of its velocity is 8.00 m/s when the 65.0-kg performer catches it. If the performer is on

    asked by Mohanad on March 24, 2014
  82. math

    If a metal ball is thrown downward with an initial velocity of 22 feet per second (15mph)from a 100 foot water tower, it's height h in feet above the ground after t seconds is modeled by h(t)=-16t^2-22t+100 Determine when the height of the ball is 62 feet.

    asked by alex on February 12, 2012
  83. Physics updated

    When jumping straight down, you can be seriously injured if you land stiff-legged. One way to avoid injury is to bend your knees upon landing to reduce the force of the impact. A 65.3-kg man just before contact with the ground has a speed of 7.05 m/s. (a)

    asked by Sanz on October 19, 2014
  84. science

    A 2.94 kg ball is attached to a ceiling by a 1.88 m long string. The height of the room is 5.05 m . The acceleration of gravity is 9.8 m/s2 . What is the gravitational potential energy associated with the ball relative to the ceiling? Answer in units of J

    asked by meadowmere on November 20, 2013
  85. projectile physics

    im a bit puzzled, please help me gain the sanity required for this confusion... suppose a ball is thrown from the top of a cliff, and i am supposed to get its final velocity; since when the ball reaches it maximum height, the vf which becomes the vi or

    asked by cheerie on May 5, 2011
  86. physics

    ques 1.......a boy walks from his home to his school at an average speed of 10 km per hour and returns to his home at an average speed of 15 km per hour . what is his average speed in km per hour during the entire round trip ? ques 2........a thief running

    asked by Anonymous on August 14, 2011
  87. physics

    ques 1.......a boy walks from his home to his school at an average speed of 10 km per hour and returns to his home at an average speed of 15 km per hour . what is his average speed in km per hour during the entire round trip ? ques 2........a thief running

    asked by Anonymous on August 14, 2011
  88. physics

    ques 1.......a boy walks from his home to his school at an average speed of 10 km per hour and returns to his home at an average speed of 15 km per hour . what is his average speed in km per hour during the entire round trip ? ques 2........a thief running

    asked by Anonymous on August 14, 2011
  89. math

    A ball is thrown straight up. Its height, h(in metres), after t seconds is given by h=-5t^2+10t+2. To the nearest tenth of a second, when is the ball 6m above the ground? Explain why there are two answers. set h=6 rearrange the quadratic equation to get

    asked by Shay on January 18, 2007
  90. Math

    Suppose a scientist on Earth throws a baseball upward. The scientist lets go of the ball 2 meters above the ground with an initial velocity of 10 meters per second. How long does it take for the ball to hit the ground (H=0)? (Use the quadratic formula to

    asked by A.S. on July 24, 2011
  91. physics

    Two billiaard balls rolls to one another under an angle of 45°. Ball A have a speed of 3m/s and follows a track along the positive x-axis. Ball B moves on a track towards the x-axis and comes from the left top corner with a speed of 2m/s. Calculate the

    asked by Ernest on March 10, 2010
  92. geometry

    Many younger children like to play a game similar to baseball called tee-ball. To accommodate the younger children, the bases are only 40 feet apart in a square-shaped field. Find the distance between home plate and second base in tee-ball. If necessary,

    asked by whitney on January 3, 2011
  93. physics

    i have this problem, it asks: (a) With what speed must a ball be thrown vertically from ground level to rise to a maximum height of 50m? answer: 31m/s (b)How long will it be in the air?\ answer: 6.4s (c) Sketch graphs of y, v, and a vs. t for the ball. On

    asked by alk on August 25, 2008
  94. Physics

    A cannon is mounted on a truck that moves forward at a speed of 5 m/s. The operator wants to launch a ball from a cannon so the ball goes as far as possible before hitting the level surface. The muzzle velocity of the cannon is 50 m/s. What angle from the

    asked by Brian on February 17, 2013
  95. physics

    how to calculate the vibration when the car hits a bump?

    asked by nunu on September 29, 2011
  96. science

    what happens when an ocean wave hits an oil spill?

    asked by jen on March 3, 2011
  97. Math

    Find rartio 8 hits in 22. GAMES. NOT AT BATS

    asked by Caden on August 25, 2013
  98. Nature Science

    If a typhoon hits an island without any person, is that a disaster?

    asked by Liv on December 6, 2016
  99. PHYSICS

    Q: AN OBJECT IS MOVING PAST YOU IN A STRAIGHT LINE WITH A CONSTANT SPEED. YOU CAN CONCUDED A. THAT THERE IS A CONSTANT FORCE IN THE DIRECTION OF MOTION B. THAT THERE ARE NO FORCES ACTING ON THE OBJECT C. THAT THE NET FORCE ON THE OBJECT IS ZERO D. NONE OF

    asked by JACOB on April 22, 2012
  100. Physics

    1. To move a large crate across a rough floor, you push on it with a force F at an angle of 21° below the horizontal. The mass of the crate is 32.0 kg. The coefficients of static and kinetic friction are 0.62 and 0.42 respectively. (a) What force F is

    asked by Meder on February 24, 2013