1. physics

    I did a lab experiment where we verify Newtons second law experimentally. A glider moves along a frictionless air track and is attached to a hanging mass. We vary the hanging masses and calculate the force since we have the mass and acceleration. We have

    asked by physics lab help on October 11, 2010
  2. Math

    A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 forces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when

    asked by Tasneem on April 28, 2013
  3. Math

    A solid sphere of 1.46kg and radius 0.1m, is rolling down a rough plane that is inclined at an angle 30 degrees to the horizontal. The 3 ferces acting on the sphere are its weight, friction force and the normal reaction. The sphere starts rolling down when

    asked by Tasneem on April 28, 2013
  4. Physics

    A 12.0 kg object is on a surface that is inclined 30 degrees and the coefficient of friction is 0.65. Determine the force of static friction if the block remains stationary.

    asked by Sarah on May 9, 2017
  5. Physics

    A 12.0 kg object is on a surface that is inclined 30 degrees and the coefficient of friction is 0.65. Determine the force of static friction if the block remains stationary.

    asked by Sarah on May 12, 2017
  6. Physics

    A 12.0 kg object is on a surface that is inclined 30 degrees and the coefficient of friction is 0.65. Determine the force of static friction if the block remains stationary.

    asked by Lizzy on May 11, 2017
  7. Physics

    A block of mass m1 is connected to an empty bucket of mass 1.35 kg by a cord over a frictionless pulley. The coefficient of the static friction between the table and the block is 0.45 and the coefficient of kinetic friction between the table and the block

    asked by Mawuli on May 2, 2011
  8. Physics: Work

    1st question: I was solving a question and I was asked the work done by friction. It is natural that work done by friction (a retarding force)should be negative and in my answer it was. However, just to be sure, work can be negative? 2nd question: A block

    asked by Matt on March 12, 2007
  9. physics

    A box is pushed along a surface with constant horizontal force. The surface is frictionless. The box starts from rest and travels 6.0m in 2.0s. if the experiment is repeated but with the box's mass doubled, how far will it travel?

    asked by lily on June 4, 2017
  10. physics

    A skier slides down a ski slope with an acceleration 2.2 m/s^2 directed down the slope. The coefficient of kinetic friction between the skis and the slope is 0.24. What is the angle of the slope with the ground?

    asked by John on May 22, 2016
  11. Math

    Which of the following is TRUE about the line through the points (–1, 4) and (–1, 2)? Please EXPLAIN/SHOW WORK. A. The slope is undefined B. The slope is negative C. The slope is 0 D. The slope is positive

    asked by Carmin on June 24, 2009
  12. PHYSICS - PLZ HELP

    Q: A 5.0 kg block is placed on top of a 10. kg block.(DIAGRAM : ww w.ux1.eiu.edu/~cfadd/1350/Hmwk/Ch05/Images/P5.74.g i f) A horizontal force of 45 N is applied to the 10. kg block and the 5.0 kg block is tied to the wall. The coefficient of friction

    asked by out of time on March 29, 2016
  13. physics

    an inclined plane, which slopes at 37degree is used to raise a 10 kg object to a heghit of 4m if the efficency is 80% determine a,the load (t@ke sin 37=0.6,cos 37 =0.8) b,the cofficent of kinetic friction c,the effort force

    asked by sami on April 5, 2016
  14. physics

    What horizontal force is needed to push a hospital bed of mass 120 kg at a constant speed up a smooth sloping plane inclined at an angle of 37 degrees above the ground?

    asked by Lovely on September 10, 2014
  15. physics

    A block of mass 3 kg is hung from a spring, causing it to stretch 21 cm at equilibrium, as shown below. The 3 kg block is then replaced by a 4 kg block, and the new block is released from the position shown below, at which point the spring is unstretched.

    asked by Anonymous on February 7, 2013
  16. Physics

    we must apply a force of magnitude 82.0 N to hold the block stationary at x=-2.0 cm. From that position, we then slowly move the block so that our force does +8.0 J of work on the spring–block system; the block is then again stationary. What are the

    asked by Shawna on November 4, 2009
  17. physical

    A 0.8 kg block of wood has an initial velocity of 0.25 m/s as it begins to slide across a table. The block comes to rest over a distance of 0.72m. a) what is the average frictional force on the block? b)How much work is done on the block by friction? c)How

    asked by sara on August 18, 2012
  18. physics

    A 126 kg block is released at a 6.8 m height as shown. The track is frictionless. The block travels down the track, hits a spring of force constant k = 1999 N/m. The acceleration of gravity is 9.8 m/s 2 .moreno (lm35839) – Homework 16A – smith –

    asked by Anonymous on January 17, 2013
  19. Physics

    What is the coefficient of friction between a sled and a plane inclined 30 degrees from the horizontal if the sled just slides without accelerating when given an initial push?

    asked by Jen on September 22, 2014
  20. Physics

    A solid sphere at rest at the top 12.0 m inclined plane rolls down the incline. How high vertically does it rise of the other incline?

    asked by George on December 20, 2010
  21. Physics

    A 2.0 kg mass starts from rest and slides down an inclined plane 7.9 ✕ 10-1 m long in 0.64 s. What net force is acting on the mass along the incline? N

    asked by Anonymous on December 8, 2014
  22. Math for Reiny

    your derivative is correct. now just plug in x = π/2 to get the slope remember that tan(π/2) is undefined, BUT cot (π/2) = cos(π/2) / sin(π/2) = 0/1 = 0 so slope = -csc^2 (π/2) = 2 I calculated and got -1 as the slope. Can you please explain how you

    asked by Dave on October 12, 2016
  23. Math for Reiny

    your derivative is correct. now just plug in x = π/2 to get the slope remember that tan(π/2) is undefined, BUT cot (π/2) = cos(π/2) / sin(π/2) = 0/1 = 0 so slope = -csc^2 (π/2) = 2 I calculated and got -1 as the slope. Can you please explain how you

    asked by Dave on October 12, 2016
  24. physics

    This problem is derived from a video shown in class. A small cart is rolling down an inclined track and accelerating. It fires a ball perpendicular to the inclined track as it moves. The origin of the reference frame is located at the spot from where the

    asked by zina on October 2, 2012
  25. mechanics: spring problem

    You drop a block from rest from a height h=3 m. The block lands on the spring at height h1 = 1.5 meters (spring constant = 160Nm) and compresses it 0.5 m before the block and spring momentarilty come to rest. (The spring then pushes the block upward.) What

    asked by student1618 on September 4, 2015
  26. physics

    A block of wood with a mass of 1300g is sitting on a horizontal tabletop. The coefficient of kinetic friction between the block and table is µk=0.74.A rifle bullet with a mass of 39g is fired horizontally into the block at a sped of 290m/s and stops

    asked by aaron on February 19, 2015
  27. physics

    A box is pushed a distance d along a ramp at a constant speed by a horizontal force, Fa. The mass of the box is m. The ramp is inclined at an angle of  above the horizontal and the coecient of kinetic friction between the box and the ramp is k.

    asked by Anonymous on November 28, 2011
  28. Physics

    A 500-g block is shot up a surface 25° inclined with the horizontal with an initial speed of 200cm/s. How far up the incline will it go if the coefficient of friction between it and the incline is 0.150?

    asked by Anonymous on November 3, 2013
  29. PHYSICS HELP!

    1. A 125-gram projectile strikes a 1.45 kg block that's attached to a massless vertical pole & becomes embedded in the block causing the bullet & block to swing upward. The overall length of the pole & the block combined is 1.1m. The bullet & block at the

    asked by A on April 27, 2016
  30. physics

    A Block has a mass of 50.0 kilograms. the coefficient of static friction between the block and the level floor on which it rests is 0.428 A horizontal force of 618 newtons is applied to the block to the right, as shown. will the block move?

    asked by Jen on May 24, 2012
  31. Math

    How many two block towers can you make from: 1 black block,1 red block, and 1 blue block? Please explain.

    asked by Chris on September 9, 2011
  32. Physics

    mass of 2 kg is released from rest at the top of the inclined plane shown below. at bottom speed is 5 m/s how much work was done by friction between incline and mass

    asked by Anonymous on November 3, 2014
  33. Physics

    A person whose mass is m = 96.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle α = 15.3° with the horizontal. What is the reading on the scale?

    asked by Scott on May 28, 2015
  34. physics

    find the expression for the acceleration of a cylinder rolling down without slipping on a rough inclined plane also obtained an expression for coefficient of friction

    asked by shashi ranjan on March 19, 2013
  35. Physics

    A block of mass m1 = 2.4 kg initially moving to the right with a speed of 3.3 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 4.1 kg initially moving to the left with a speed of 1.5 m/s as shown in

    asked by Leticia on October 14, 2013
  36. Physics

    A block of mass m1 = 2.4 kg initially moving to the right with a speed of 3.3 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 4.1 kg initially moving to the left with a speed of 1.5 m/s as shown in

    asked by Leticia on October 14, 2013
  37. Physics

    A ninety kilogram sofa is being pushed by four meters to the other side of a hall. After an initial push the sofa is pushed with a 600 N force. In this case, 0.6 is the coefficient of kinetic friction. What would be the magnitude and direction of the

    asked by Anonymous on October 12, 2016
  38. physics help please

    The two blocks are connected by a light string that passes over a frictionless pulley with a negligible mass. The 3 kg block lies on a rough horizontal surface with a constant coefficient of kinetic friction 0:3. The hanging block has a mass of 8 kg. The

    asked by kitt on March 1, 2007
  39. Help!!!

    An electric field of intensity 4.27 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true. (a) The plane is parallel to the yz-plane. (b) The plane is

    asked by Isabella on January 20, 2012
  40. physics!!!

    An electric field of intensity 4.27 kN/C is applied along the x-axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.700 m long if the following conditions are true. (a) The plane is parallel to the yz-plane. (b) The plane is

    asked by Isabella on January 20, 2012
  41. Physics

    You have been asked to design a "ballistic spring system" to measure the speed of bullets. A bullet of mass m is fired into a block of mass M. The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal

    asked by Marie on March 24, 2014
  42. physics

    Block A (mass = 3 kg), moving at +5 meters per second, collides with stationary block B (mass = 4 kg). Block A comes to a sudden stop, while block B starts moving. What will be the approximate final speed of block B?

    asked by Rachel on June 5, 2017
  43. physical

    An electric field with a magnitude of 3.50 kN/C is applied along the x axis. Calculate the electric flux through a rectangular plane 0.350 m wide and 0.7 m long assuming that (a) the plane is parallel to the yz plane; (b) the plane is parallel to the xy

    asked by abc on March 20, 2013
  44. Physics

    4. A 500-g block is shot up a surface 25° inclined with the horizontal with an initial speed of 200cm/s. How far up the incline will it go if the coefficient of friction between it and the incline is 0.150? Thank youuuu!

    asked by Anonymous on November 3, 2013
  45. Physics: Aluminum Block

    A 1.65-kg aluminum block and a 6.85-kg copper block are connected by a light string over a frictionless pulley. The two blocks are allowed to move on a fixed steel block wedge (of angle è = 31.0°) as shown in the figure. Making use of the table below,

    asked by crystal on March 5, 2013
  46. physics

    A car of mass 1000 kg is on an icy driveway inclined at an angle of 33◦. The acceleration of gravity is 9.8 m/s^2 θ If the incline is frictionless, what is the acceleration of the car?

    asked by Annonymous on October 22, 2015
  47. phyics

    A box of mass 0.385 kg slides down a very smooth (frictionless) ramp which is inclined at an angle of 56.6° above the horizontal. What is the acceleration of the box down the ramp?

    asked by Amy on September 22, 2012
  48. physics

    A person whose mass is m = 100.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle α = 32.7° with the horizontal. What is the reading on the scale?

    asked by Anonymous on July 9, 2014
  49. physics

    A scooter with a mass of 25kg on a horizontal plane that is inclined until at an angle of 3degrees.what is the minimum coefficient of static friction for the scooter not to slide?

    asked by joyce on February 4, 2013
  50. physics

    A mass of 10kg is placed on the top of a plane inclined at 45 degrees to the horizontal and allowed to slide down. What is the acceleration of the mass if the frictional force opposing is 3.2N.

    asked by Daniel on January 17, 2011
  51. physics B

    A block is given n intial speed of 3.0 s^-1 m up the 22.0 degree plane (a) How far up the plane will it go? (b) How mcuh time elapses before it returns to its starting point? Assume Mu k = 0.17 for (a) a = - (Mu k g cos theta + g sin theta) I got - 5.23

    asked by physics B on September 4, 2009
  52. Physics

    a child slides down a slide with 26 degrees inclined and at the bottom her speed is 1/4 of what it would have been frictionless. Calculate the coefficient of kinetic fiction between the slide and the child?

    asked by Anonymous on September 25, 2014
  53. physics

    A box of mass 1.95 kg slides down a frictionless ramp inclined at an angle θ= 42.9 ° at constant speed. The force exerted on the box by the ramp is how many Newtons?

    asked by Amy on September 22, 2012
  54. pHysics !!

    A 20-g bullet is fired horizontally into a 980 g block of wood suspended by a long cord. The bullet sticks in the block and causes the block to swing 15 cm above its initial level. a) What is the momentum of the bullet before it hit the block? b) Determine

    asked by kent on September 1, 2013
  55. Physics

    1. The total length of a spring is 0.25 m. What it is unstretched and 0.30 m when a force of 17.82 N is applied to it. What will be the length when 26.72 N is applied to it? 2. A piller with a cross sectional area of 1.5 m^2 supports a portion of a

    asked by Cielo on September 3, 2014
  56. Physics-Mechaincs

    The suspended 2.29 kg mass on the right is moving up, the 1.3 kg mass slides down the ramp, and the suspended 7.7 kg mass on the left is moving down. There is friction between the block and the ramp. u=0.15 The acceleration of gravity is 9.8 m/s2 . The

    asked by Genevieve on September 24, 2010
  57. Physics

    Two blocks of masses m1 = 2.00 kg and m2 = 3.70 kg are each released from rest at a height of h = 5.60 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (Let the positive direction point to the right.

    asked by Jessica on October 29, 2012
  58. Physics

    Two blocks of masses m1 = 2.00 kg and m2 = 3.70 kg are each released from rest at a height of h = 5.60 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (Let the positive direction point to the right.

    asked by Jessica on October 29, 2012
  59. physics

    A frictionless pendulum is made with a bob of mass 19.7 kg. The bob is held at height = 0.934 meter above the bottom of its trajectory, and then pushed forward with an initial speed of 2.93 m/s. What amount of mechanical energy does the bob have when it

    asked by Anonymous on May 2, 2012
  60. Physics 11 urgent Steve, bob, damon pls

    A 30 kg student pushes a 20kg box on frictionless surface. If student accelerates at 0.8m/s^2(N),what is acceleration of bix. now why does the box acceerate towards south, if it is being pushed north should it not move north.

    asked by IZAAK SiDney Dunkan on October 31, 2016
  61. Physics

    A car of mass 1060 kg is on an icy driveway inclined at an angle of 39◦ . The acceleration of gravity is 9.8 m/s 2 . θ If the incline is frictionless, what is the acceleration of the car? Answer in units of m/s 2

    asked by P on November 19, 2014
  62. Physics

    A disconcerted dog of a mass 7.80 kg is sliding down a frictionless plank which is inclined at an angle of 48.0 degrees to the horizontal. Calculate the force which accelerates the dog down the plank.

    asked by Sandra on October 1, 2010
  63. physics

    an object of mass m = 2,113 g held by a massless string on a frictionless inclined surface. What is the magnitude of the force that the surface exerts on the object if θ = 52 degrees ?

    asked by Lavender on September 26, 2009
  64. Physics

    A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally to the 4 kg block

    asked by Joe on December 19, 2012
  65. college physics

    Two blocks with masses m and M are pushed along a horizontal frictionless furface by a horizontal applied force. The magnitude of the force either of these blocks has on the other is: M being a bigger mass than m of course. I think the answer is: mF/(M-m)

    asked by Ryan on December 18, 2009
  66. physics

    A)A 90 kg crate is pushed at constant speed up the frictionless 34° ramp shown in the figure. What horizontal force F is required? B)What force is exerted by the ramp on the crate?

    asked by Tsion on February 12, 2014
  67. physics

    A 50 kg crate is pushed at constant speed up the frictionless 31° ramp shown in the figure. A)What horizontal force F is required? B)What force is exerted by the ramp on the crate?

    asked by Steve on February 21, 2012
  68. Physics

    Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless

    asked by Sam on October 7, 2011
  69. physics

    Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless

    asked by Sam on October 7, 2011
  70. Physics

    Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless

    asked by Sam on October 7, 2011
  71. physics

    a rifle bullet of mass 8.0g strikes and embeds itself in a block of mass 0.992kg that rests on a frictionless horizontal surface and is attached to a coil spring. the impact compresses the spring 15.0cm. calibration of the spring shows that a force of

    asked by #PAKIsagotPARAbukas on February 17, 2016
  72. physics

    Two blocks (one of which is on a ramp) are attached via a string looped over a pulley. The block on the incline has a mass of 5.0 kg; the block hanging downward (suspended by the pulley) has a mass of 7.0 kg. Assume the usual things (non-stretchy massless

    asked by Sam on October 7, 2011
  73. physics

    need to know mass and acceleration of a 30.5 bloch connected to an empty 1.00kg bucket by cord running over a frictionless pulley coefficient of static friction between table and block is 0.405 and coeff. of kinetic frict. between the table and the block

    asked by sara on March 17, 2011
  74. Physics

    Children sled down a 45 m long hill inclined at 26 degrees. At the bottom, the slope levels out. If the coefficient of friction is 0.1, how far do the children slide on the level ground?

    asked by Joan on September 23, 2013
  75. PHYSICS HELP

    A 320-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 25° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

    asked by A on November 3, 2010
  76. Physics

    Children sled down a 45 m long hill inclined at 26 degrees. At the bottom, the slope levels out. If the coefficient of friction is 0.1, how far do the children slide on the level ground?

    asked by Joan on September 23, 2013
  77. Physic

    A 290-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 31° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?

    asked by Nikki on November 10, 2011
  78. physics

    Trying to escape his pursuers, a secret agent skis off a slope inclined at 30° below the horizontal at 60 km/h. To survive and land on the snow 100 m below, he must clear a gorge 60 m wide. Does he make it? Ignore air resistance.

    asked by prashant on February 6, 2017
  79. physics

    In a physics lab, students are asked to predict how the acceleration of the block sliding up a ramp compares to the acceleration down the ramp compares to the acceleration down the ramp. The block slides up a somewhat rough surface inclined at an angle of

    asked by Anonymous on January 21, 2015
  80. Physics

    Two blocks of masses m1 = 2.00 kg and m2 = 4.50 kg are each released from rest at a height of y = 5.80 m on a frictionless track, as shown in the figure below, and undergo an elastic head-on collision. (a) Determine the velocity of each block just before

    asked by Corey on November 7, 2012
  81. st.xavier

    Determine the horizontal force P required to start the movement of the 200 lb blockup the 300inclined surface. The static coefficient of friction between the inclined surface and the block is ms = 0.25.

    asked by pankaj on September 16, 2013
  82. Physics

    Two blocks are connected by a light string passing over a pulley. The inclined surfaces are frictionless, and the effects of the pulley can be ignored. The value of m1 = m2 = 1.0 kg and θ2 = 43.4 degrees. If the blocks accelerate to the right with

    asked by Katie on February 24, 2010
  83. Physics

    A force of 2000N is used to push a box up am inclined plane that is 15m long. If the 100 kg box is raised to a height of 8m,how much work is done against friction ?let g=10m/s^2.

    asked by Riana on April 2, 2013
  84. Physics

    An crate weighing 510 N is resting on a plane inclined 30° above the horizontal. (a) Calculate the magnitude of the acceleration (ignore friction). m/s2 (b) After 3.00 s, how fast will the crate be moving?

    asked by yoyoma on November 17, 2012
  85. Physics

    An crate weighing 576 N is resting on a plane inclined 31° above the horizontal. (a) Calculate the magnitude of the acceleration (ignore friction). (b) After 4.50 s, how fast will the crate be moving?

    asked by Bloopps on October 18, 2010
  86. physics

    A box weighing 50N was placed on a sloping plane inclined at 30degree to the horizontal. It was acted on by the force 50n. Find the perpendicular and parallel compönent

    asked by Fate on April 5, 2011
  87. Physics

    An crate weighing 576 N is resting on a plane inclined 29¡Æ above the horizontal. The magnitude of the acceleration (ignore friction) is1 m/s2. After 5.00 s, how fast will the crate be moving?

    asked by last question! i promise! on October 16, 2009
  88. Physics

    A solid sphere rolls without slipping from rest down a plane at 4.00m long inclined at an angle of 42 degrees with respect to the horizontal as shown in the figure below. Determine the speed at the bottom of the incline.

    asked by jake on July 2, 2013
  89. Physics

    Two blocks (M1 = 2.57 kg and M2 = 6.71 kg) are in contact on a frictionless, horizontal tabletop. An external force, $\vec{F}$, is applied to block 1, and the two blocks are moving with a constant acceleration of 2.59 m/s2. What is the contact force

    asked by Lyra on September 22, 2013
  90. Physics

    A mass m1 = 5.0 kg rests on a frictionless table and connected by a massless string to another mass m2 = 5.9 kg. A force of magnitude F = 40.0 N pulls m1 to the left a distance d = 0.77 m. 1)How much work is done by the force F on the two block system?

    asked by J.C. on October 2, 2012
  91. PHYSICS

    A block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x = 0) when a

    asked by Anonymous on October 22, 2011
  92. physics

    A 0.330 kg bar is placed on a pair of frictionless rails separated by a distance of 1.60 m and located on an inclined plane that makes an angle of 29.0° with respect to the ground. The total resistance of the circuit remains at a constant 1.8 Ω and a

    asked by Jimmy on August 20, 2012
  93. Physics

    A small block of mass m slides along the frictionless loop track,if it starts from rest at point p,what us the resultant force acting on it at q?

    asked by Anonymous on March 20, 2013
  94. physics

    Question part Points Submissions 1 2 0/1 0/1 0/10 0/10 Total 0/2 A 3.5-kg block slides with a speed of 1.6 m/s on a frictionless, horizontal surface until it encounters a spring.

    asked by Anonymous on February 26, 2011
  95. Physics

    A block is suspended from the end of a spring. An external force holds the block so that initially the spring is not stretched or compressed. When the block is released, it oscillates up and down between positions A and B. If the mass of the block is 0.5

    asked by Mary on February 21, 2012
  96. Physics

    A small block of mass m rests on the sloping side of a triangular block of mass M which itself rests on a horizontal table. Assuming all surfaces are frictionless, determine the magnitude of the force ->F that must be applied to M so that m remains in a

    asked by Physics on September 23, 2009
  97. physics

    I'm making a graph of force vs stretch for springs. I have 7 data trials with the k (F = kx) ranging from 28 to 31, average is 29.6. Now I need to find the slope and write an equation for the graph. If I use the first two points to get the slope, I get a

    asked by Kriti on March 17, 2011
  98. PHYSICS

    Two blocks of mass m1 = 320 g and m2 = 725 g are pushed by a force. The coefficient of kinetic friction between each block and the ground is 0.4. The blocks move together (with one pushing the other) with an acceleration of 225 cm/s2. What is the value of

    asked by Randy on October 8, 2017
  99. Physics

    I really need help with only this two problems. 1. A 6.0 kh block, sliding to the east across a horizontal, frictionless surface with a momentum of 30 kg*m/s^, strikes an obstacle. The obstacle exerts an impluse of 10 N*s to the west on the book. The speed

    asked by Priscilla on February 3, 2010
  100. Algebra

    Doing a slope project in Algebra. The instructions are to make a picture And label coordinates points.. You have to show a negative slope. A verticle slope, an undefined slope, And a positive slope. Here is my problem. I have to write An equation and show

    asked by DONT KNOW WHAT TO DO on October 30, 2014