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April 18, 2014

Search: massless spring with spring constant k is placed between

Number of results: 52,246

physics
.5(k)x^2=m(9.81)(d)(mk) mk=coefficient of friction d= is distance traveled m=is mass of albertine in kg x=distance spring was displaced k=spring constant so enter in everything you do know and solve for mk. answer: mk=.102
Wednesday, October 20, 2010 at 12:33pm by Shandon

college physcs
A 0.150 block moving vertically upward collides with a light vertical spring and compresses it 4.50 before coming to rest. If the spring constant is 54.0 , what was the initial speed of the block? (Ignore energy losses to sound and other factors during the collision.)
Thursday, December 17, 2009 at 10:17pm by Ramon

physics
A 0.150 kg block moving vertically upward collides with a light vertical spring and compresses it 4.50cm before coming to rest. If the spring constant is 54.0 N/m, what was the initial speed of the block? (Ignore energy losses to sound and other factors during the collision.)
Friday, December 18, 2009 at 6:20pm by Ramon

PHYSICS
I don't quite get the point about the algebraic sign. They probably want you to say it is negative because the spring has work done ON it. The person's finger pushing the spring does the positive work. Anyway, the work done by the pusher of the spring is (1/2)k[(.0097)^2 - (....
Tuesday, December 14, 2010 at 9:17am by drwls

Physics
Two identical ice skaters are holding onto opposite ends of a very long spring with a spring constant of 650 N/m. While spinning in a circle, the skaters frequency of revolution is measured to be 0.85 Hz. Calculate the mass of the skaters. m = 45.6 kg
Sunday, November 25, 2012 at 9:26pm by Anonymous

physics
A freight company uses a compressed spring to shoot 2.00 kg packages up a 1.00-m -high frictionless ramp into a truck, as the figure shows. The spring constant is 481 N/m and the spring is compressed 30.0 cm . A. What is the speed of the package when it reaches the truck? B. A...
Saturday, November 13, 2010 at 10:29pm by Anonymous

differential equation
A mass 􀝉􀬵 􀵌 1 􀝇􀝃 is attached to a spring with a spring constant 􀝇􀬵 􀵌 5 􀯇 􀯠, which is attached to a solid mounting. A second mass 􀝉􀬶 􀵌 1 􀝇􀝃 is ...
Thursday, June 30, 2011 at 12:01am by hardik

Chemistry
A mass of 0.2 kg is attached to a spring of negligible mass. I the mass executes simple harmonic motion with a period of 0.5 s, what will be the spring constant/ Can I use the following formula to solve this problem k = (4pi square x mass) / T square
Sunday, October 24, 2010 at 5:21pm by Jay

physiscs
mass of 0.2 kg is attached to a spring of negligible mass. I the mass executes simple harmonic motion with a period of 0.5 s, what will be the spring constant/ Can I use the following formula to solve this problem k = (4pi square x mass) / T square
Sunday, October 24, 2010 at 5:28pm by Jay

Physics
A bullet is fired into a block of wood with speed 250 m/s. The block is attached to a spring that has a spring of 200 N/m. The block embedded bullet compresses the spring a distance of 30.0 cm to the right. Determine the mass of the wooden block
Friday, March 21, 2014 at 4:07pm by Dale

Physics
A 0.40kg block is held against a compressed spring of stiffness 68.2N/m and compression 0.64m parallel to a 24 degree incline that is 1.27m long.  The coefficient of kinetic friction between the block and the incline is 0.34.  The external force holding the block against the...
Monday, October 15, 2012 at 8:56pm by Alphonse

Physics
8.1 kg weighs M g = 73.4 N; so the spring constant must be k = 73.4/0.12 = 661.5 N/m After compressing another X = 0.27 m, the releasable potential energy in the spring is (1/2)kX^2 = 24.1 J Set 24.1 J = M g H to get the height H that the stone can rise. H = 24.1 J/(8.1*9.8...
Thursday, August 19, 2010 at 3:23pm by drwls

physics to Drwls
a)(a) What is the spring constant of the spring? 51.3 N/m (b) Luke now pulls the brick 5.1 cm from the equilibrium position to watch it oscillate. What is the maximum speed of the brick? .35 m/s So would you subtract 2.55 cm from 5.1 cm? To get how much was stretched?
Saturday, March 31, 2012 at 12:53am by Riya

Physics
A child's pogo stick stores energy in a spring with a force constant of 2.5104N/m. At position A, the spring compression is a maximum and the child is momentarily at rest. At position B, the spring is in its equilibrium position and the child is moving upward. At position C, ...
Monday, March 26, 2012 at 3:08am by bobby

Physics
In a "worst-case" design scenario, a 2000-{\rm kg} elevator with broken cables is falling at 4.00 {\rm m/s} when it first contacts a cushioning spring at the bottom of the shaft. The spring is supposed to stop the elevator, compressing 2.00 {\rm m} as it does so. During the ...
Sunday, March 13, 2011 at 9:27pm by Trevor

Physics
frictionless block of mass 1.65 kg is attached to an ideal spring with force constant 340 N/m . At t=0 the spring is neither stretched nor compressed and the block is moving in the negative direction at a speed of 12.7 m/s . A-Find the amplitude. B-Find the phase angle.
Tuesday, January 2, 2007 at 8:07pm by Hadi

physics
1) The definition of spring constant is force divided by the change in length. Do the calculation. 2) The accleration of gravity at the surface of a spherical body is proportional its mass and inversely proportional to the square of the radius. 4/4^2 = 1/4 of the Earth's value...
Thursday, June 16, 2011 at 4:39am by drwls

Physics
A mass of 0.77 kg, hanging from a spring with a spring constant of 37 N/m, is set into an up-and-down simple harmonic motion. What is the speed of the mass when moving through the equilibrium point? The starting displacement from equilibrium is 0.2 m. [Answer in meters/second]
Wednesday, July 4, 2012 at 3:46pm by Vanessa

physics
A copper rod of length 0.83 m is lying on a frictionless table (see the drawing). Each end of the rod is attached to a fixed wire by an unstretched spring that has a spring constant of k = 73 N/m. A magnetic field with a strength of 0.17 T is oriented perpendicular to the ...
Monday, March 25, 2013 at 7:45pm by VictorD2

physics
A spring of force constant 655 N/m is used to launch a 5.25 kg mass from the edge of a frictionless table that is 1.20 m above the floor. How far horizontally away from the table will the mass land if the spring was compressed 42.0 cm before launching?
Thursday, February 13, 2014 at 8:12pm by Ben

Physics-- urgent
A block of mass m = 3.20kg slides from rest a distance d down a frictionless incline at angle θ = 30.0 where it runs into a spring of spring constant 425 N/m. When the block momentarily stops, it has compressed the spring by 22.0 cm. (a) What is the distance d? I found ...
Tuesday, October 25, 2011 at 8:39pm by Anonymous

Physics
A thrill-seeking cat with mass 4.00 kg is attached by a harness to an ideal spring of negligible mass and oscillates vertically in SHM. The amplitude is 0.050 m, and at the highest point of the motion the spring has its natural unstretched length. Calculate the elastic ...
Monday, November 19, 2012 at 9:59pm by Alex

physics
Two identical 1.60 {\rm kg} masses are pressed against opposite ends of a spring of force constant 1.85 {\rm N}/{\rm cm}, compressing the spring by 25.0 {\rm cm} from its normal length.
Friday, December 23, 2011 at 12:42pm by Anonymous

physics (3 seperate questions)
1. A small fly of mass 0.26 g is caught in a spider's web. The web vibrates predominately with a frequency of 4.2 Hz. Find the effective spring stiffness constant k for the web. Hint: use natural frequency of oscillations formula. N/m 2. At what frequency would you expect the ...
Monday, March 28, 2011 at 8:01pm by Anonymous

Physics
A spring has an unstretched length of 9.8 cm. The potential energy stored in the spring is V when the spring is streched to a length of 11.8 cm. What is the stretched length of the spring when its potential energy is 2.2 V? What compressed length will result in a potential ...
Monday, October 7, 2013 at 8:26pm by Maddie

Physics
So I did in an experiment and the results I got were the potential energy when the spring compresses is 0 and when it stretches is 1.42. This spring is vertical and has a 250 gram spring attached to it. I was very confused when i got these results because I thought the ...
Thursday, June 23, 2011 at 5:51pm by Janice

Physics
A child's toy consists of a block that attaches to a table with a suction cup, a spring connected to that block, a ball, and a launching ramp. (Intro 1 figure) The spring has a spring constant k, the ball has a mass m, and the ramp rises a height y above the table, the surface...
Friday, October 31, 2008 at 10:33pm by Sam

physics
A 5.0 gm marble is fired vertically upward using a spring gun. The spring must be compressed 8 cm if the marble is to just reach a target 20 m above the marbles position on the compressed spring .(a) What is the change in the gravitational potential energy of the marble-earth...
Thursday, September 16, 2010 at 1:24pm by sunny

physics please help
suppose a cart of mass m = 969 g is initial moving at speed v0 = 5.17 m/s. It strikes a spring attached to a fixed wall, comes to a stop, and bounces back at speed vf = 4.48 m/s. Assume the track is frictionless. a) Find the magnitude of the impulse exerted by the spring on ...
Monday, November 1, 2010 at 10:22pm by john

Physics
Stretching DNA. With its double-helix structure, DNA is coiled like a spring. A biophysicist grabs the ends of a DNA strand with optical tweezers and stretches it 26m producing 1.2pN- tension in the strand. What's the DNA's spring constant?
Wednesday, October 12, 2011 at 5:06pm by Eman

Physics
A light spiral spring is suspended from its upper end. A mass of 7.5*10^-2, hung from the lower end produces an extension of 0.15 m. The mass is pulled down to a furthur 8.0*10^-2 m and released so that it oscillates calculate the spring constant.
Monday, September 17, 2012 at 7:20am by Mariam

Genereal Physics I
A 0.49 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 640 N/m) whose other end is fixed. The ladle has a kinetic energy of 260 J as it passes through its equilibrium position (the point at which the spring force is zero...
Wednesday, October 13, 2010 at 5:27pm by VitaX

Physics
A 0.40kg block is held against a compressed spring of stiffness 68.2N/m and compression 0.64m parallel to a 24 degree incline that is 1.27m long. The coefficient of kinetic friction between the block and the incline is 0.34. The external force holding the block against the ...
Thursday, October 18, 2012 at 9:16pm by Alphonse

Physics
For parts A-C: /^Vo | 2M | velocity into pg. ->R )2m ) ------ top view rear view A car of mass, 2m, is going around a turn at a constant radius, R, with velocity, v0. The turn is not banked it is a flat surface. Assume the car and the road are on Earths surface. a) Is ...
Saturday, April 6, 2013 at 1:00pm by Greg

Math
A frictionless spring with a 7-kg mass can be held stretched 1 meters beyond its natural length by a force of 20 newtons. If the spring begins at its spring-mass equilibrium position, but a push gives it an initial velocity of 0.5 m/sec, find the position of the mass after ...
Sunday, November 4, 2012 at 7:36pm by James

12th Grade Physics
Q. a 2.0 kg block is placed against a spring of force constant 800 N/m, which has been compressed 0.15m. The spring is released, and the block moves 1.2m along a horizontal surface with a coefficient of friction of 0.19. The block then slides up the incline with a coefficient ...
Tuesday, October 14, 2008 at 10:46pm by Ring

Physics
A 1.20kg ball is rolled down a frictionless ramp whose top is 0.80m above a horizontal spring with ks = 800N/m. The ball reaches the horizontal just in front of the spring. a.) What is the kinetic energy of the ball just before it contacts the spring? b.) What is the velocity ...
Wednesday, July 18, 2012 at 7:03pm by Lauren

Calculus based Physics - Springs
A 0.49 kg ladle sliding on a horizontal frictionless surface is attached to one end of a horizontal spring (k = 640 N/m) whose other end is fixed. The ladle has a kinetic energy of 260 J as it passes through its equilibrium position (the point at which the spring force is zero...
Tuesday, October 12, 2010 at 7:57pm by Vipre

physics
a simple harmonic oscillator consists of a block of mass 2 kg attached to a spring of spring constant 100 N/m. when t=1 s, the position and velocity of the block are x=.129 m and v=3.415 m/s. A) what is the amplitude i figured that out and got sqrt(50) B) what is the position ...
Sunday, March 30, 2008 at 9:37pm by Sarah

physics
Can you calculate how fast an object is going after falling Y 1.3 m? Sure you can. Try using conservation of energy. M g Y = (1/2) M V^2 For the spring constant k, (1/2) M V^2 + M g X = (1/2) kX^2 (the energy stored in the spring when motion stips). Cancel out the M's and ...
Thursday, November 6, 2008 at 10:20pm by drwls

Physics help
A 0.50-kg block rests on a horizontal, frictionless surface, it is pressed against a light spring having a spring constant of k = 800 N/m, with an initial compression of 2.0 cm. To what height h does the block rise when moving up the incline? what would be the h if the ...
Sunday, June 17, 2012 at 10:13pm by user

Physics
Well, compute the spring energy at .34m,and at .14m. The difference is the amount of energy the spring has released. This energy goes to KE and change of GPE. You did not mention the slant angle, but GPE is gained (mgh) spring energy released=KE+ mgh of course spring energy= 1...
Tuesday, November 16, 2010 at 7:15pm by bobpursley

phsyics
An accelerometer in a control system consists of a 4.70 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out vibrations of the ...
Wednesday, October 10, 2012 at 8:52pm by Anonymous

help with physics please!
I don't know what you mean by Us = 2.0 J This looks like a mass on a spring problem for which conservation of energy should be used. The sum of potential and kinetic energy equals a constant. At the equilibrium position, the kinetic energy is (1/2)M V^2 = (1/2)(2.5)(0.55)^ = 2...
Thursday, June 18, 2009 at 8:53am by drwls

Physics... Help!
A bullet of mass m=0.060 kg hits a 5.0 kg block with an initial speed of 225 m/s. The block is connected to a spring that is attached to a wall. The friction between the block and the table is negligible. Upon impact, the bullet bounces back from the box with a speed of 75 m/s...
Sunday, October 28, 2012 at 10:28pm by Rob

Math
The length a spring stretches is directly proportional to the force applied. If a force of x pounds stretches a spring h inches, how much force is necessary to stretch the same spring m inches? (Assume x = 7, h = 4, and m = 15.)
Wednesday, May 4, 2011 at 8:12pm by lisa

math
The length a spring stretches is directly proportional to the force applied. If a force of x pounds stretches a spring h inches, how much force is necessary to stretch the same spring m inches? (Assume x = 7, h = 4, and m = 15.)
Monday, May 27, 2013 at 9:27pm by lisa

physics
The max speed of a 3.1 kg mass attached to a spring is .68 m/s and the max force exerted on the mass is 11N. What is the amplitude of motion on the mass? What is the force constant of the spring? And what is the frequency of oscillation?
Thursday, January 27, 2011 at 7:44pm by fred

Phisics
Two identical springs (neglect their masses) are used to play catch with a small block of mass 200 g (see the figure). Spring A is attached to the floor and compressed 10.0 cm with the mass on the end of it (loosely). Spring A is released from rest and the mass is ...
Sunday, July 3, 2011 at 1:14pm by Luis

physics
The maximum speed of a 3.7-{\rm kg} mass attached to a spring is 0.66 m/s, and the maximum force exerted on the mass is 11 N. What is the amplitude of motion for this mass? What is the force constant of the spring? What is the frequency of this system?
Sunday, November 20, 2011 at 8:43pm by shaz

physics
A 12 kg block is released from rest on a 30 degree fricitonless incline. Below the block is a spring that can be compressed 2 cm by a force of 270 N. The block momentarily srops when it compresses the spring by 5.5 cm. a) How far does the block move down the incline from its ...
Friday, January 5, 2007 at 5:04pm by Jamie

science
a 25 lb block has an initial speed of vo=10ft/s when it is midway between springs A and B. After striking spring B, it rebounds and slides across the horizontal plane toward spring A, etc. If the coefficient of kinetic friction between the plane and the block is mew k= 0.4, ...
Tuesday, November 25, 2008 at 12:30am by sarah

physics
A 1.20 kg mass on a horizontal spring oscillates on a frictionless surface with a displacement as a function of time given by x(t) = 0.075cos(4.16t 2.45). (Units are standard units.) a.) Find the time for one complete vibration. b.) Find the force constant of the spring. c...
Tuesday, July 31, 2012 at 6:03pm by Lauren

Physics
A 65kg trampoline artist jumps vertically upward from the top of a platform with a speed of 5.0m/s. a) How fast is he going as he lands on the trampoline, 3.0m below. b) if the trampoline behaves like a spring with a spring stiffness constant 6.2*10^4N/m, how far does he ...
Wednesday, February 23, 2011 at 9:48pm by Emily Grossman

physics
At 6 cm deflection, the oscillator has (6/11)^2 = 29.75% of its maximum potential (spring) energy. That means it has 70.25% of its maximum kinetic energy. The Velocity is at that time sqrt(0.7025) = 83.8% of the maximum value, or 3.86 m/s You do not need to know the spring ...
Thursday, October 20, 2011 at 12:16am by drwls

Physics
A 1.00 kg block is attached to a spring with spring constant 14 N/m. While the block is sitting at rest, a student hits it with a hammer and almost instantaneously gives it a speed of 31 cm/s. What is the amplitude of the subsequent oscillations?What is the block's speed at ...
Thursday, January 26, 2012 at 6:42pm by Taylor

Physics
A spring with k=40.0 N/m is at the base of a frictionless 30.0 degree inclined plane. A 0.50-kg object is pressed against the spring, compressing it 0.20m from its equilibrium position. The object is then released. If the object is not attatched to the spring, how far up the ...
Sunday, March 27, 2011 at 1:47am by Anonymous

Physics--Please Help!!
A bullet of mass m=0.060 kg hits a 5.0 kg block with an initial speed of 225 m/s. The block is connected to a spring that is attached to a wall. The friction between the block and the table is negligible. Upon impact, the bullet bounces back from the box with a speed of 75 m/s...
Sunday, October 28, 2012 at 2:48pm by Rob

Physics
The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of the gas are, ...
Wednesday, November 16, 2011 at 12:58am by Jasmin

Physics
The drawing shows an ideal gas confined to a cylinder by a massless piston that is attached to an ideal spring. Outside the cylinder is a vacuum. The cross-sectional area of the piston is A = 2.50 10-3 m2. The initial pressure, volume, and temperature of the gas are, ...
Wednesday, November 16, 2011 at 4:57pm by Angie

physics
A pendulum has a period of 0.9 s period on Earth. An object is suspended from a spring with force constant 9.8 N/m. (d)Find the mass suspended from this spring that would result in a period of 0.9 s on Earth
Monday, November 26, 2012 at 5:26pm by Anonymous

Phisics
Two identical springs (neglect their masses) are used to play catch with a small block of mass 200 g (see the figure). Spring A is attached to the floor and compressed 10.0 cm with the mass on the end of it (loosely). Spring A is released from rest and the mass is ...
Sunday, July 3, 2011 at 1:19pm by Luis

Physics- PLEASE HELP
An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out vibrations of the ...
Tuesday, October 9, 2012 at 6:17pm by Anonymous

Physics URGENT!!!
An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out vibrations of the ...
Tuesday, October 9, 2012 at 8:20pm by Anonymous

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 figure (a). The spring ...
Monday, October 14, 2013 at 2:19pm by Leticia

Physics
Yes, the mass has to be considered. The spring is operating against gravitational forces in the vertical. energy in spring= massball*g*height because it is short, you can ignore the change in GPE when the spring is compressed. If that is so, then 1/2mv^2=mgh and you are right...
Sunday, November 4, 2007 at 7:35am by bobpursley

Physics
A molecule of DNA (deoxyribonucleic acid) is 2.03 m long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 1.13% upon becoming charged. Determine the effective spring constant of...
Saturday, February 6, 2010 at 6:52pm by Jan

physices
A molecule of DNA (deoxyribonucleic acid) is 2.22 m long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.95% upon becoming charged. Determine the effective spring constant of...
Friday, January 11, 2013 at 5:14pm by Anonymous

Physics
A molecule of DNA (deoxyribonucleic acid) is 2.01 m long. The ends of the molecule become singly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.75% upon becoming charged. Determine the effective spring constant of...
Saturday, March 30, 2013 at 12:53pm by Sam

physics Waves
in which spring do transverse waves travel faster, small diameter spring or slinky? i think this be the transverse waves but i not know how to explain why. in which spring do longitudinal waves travel faster? i think that be the small spring because it smaller? do amplitude of...
Monday, January 9, 2012 at 8:51pm by Shreya

Physics
A mass m=.5kg on a spring with a spring constant. It is displaced by the distance x_max =20cm (.2m) from equilibrium on a frictionless horizontal surface. At the time t=0s the mass is released and it begins to oscillate. Assume that T=3.14s. Find the following for when t=0, T/...
Wednesday, January 30, 2008 at 6:14pm by Andrea

physics
An 840 Kg roller coaster car is launched from a giant spring of constant k=31 kN/m into a frictionless loop-the-loop track of radius 6.2 m, as shown below. What is the minimum amount that the spring must be compressed if the car is to stay on the track?
Wednesday, February 29, 2012 at 9:47pm by Chris

Physics
A block oscillates on a spring and passes its equilibrium position with a speed of .157m/s. It's kinetic energy is zero when the block is at the distance of .1m from equilibrium. Assume no friction between the block and the table. What is the period of its oscillation? v=.157m...
Friday, February 29, 2008 at 11:49am by Andrea

physics
Consider an ideal spring that has an unstretched length l0 = 3.9 m. Assume the spring has a constant k = 20 N/m. Suppose the spring is attached to a mass m = 6 kg that lies on a horizontal frictionless surface. The spring-mass system is compressed a distance of x0 = 1.7 m from...
Friday, October 11, 2013 at 9:46am by PLS HELP

College Physics
1. A spring gun is made by compressing a spring ina tube and then altching the spring at the compressed position. A 4.97-g pellet is placed against the compressed and latched spring. The spring latches at a compression of 4.06 cm, and it takes a force of 9.12 N to compress the...
Wednesday, June 29, 2011 at 2:45pm by Jane

Physics
A spring with k=40.0 N/m is at the base of a frictionless 30.0 degree inclined plane. A 0.50-kg object is pressed against the spring, compressing it 0.20m from its equilibrium position. The object is then released. If the object is not attatched to the spring, how far up the ...
Saturday, March 26, 2011 at 4:26pm by Work needed!

Physics
1. A force F = (3.99xi + 2.86yj) N acts on an object as it moves in the x direction from the origin to x = 4.45 m. Calculate the work done on the object by the force. Attemp: since we only consider x direction i multiplied 3.99 by 4.45 but it didnt work out. 2. A 10.6 kg ...
Thursday, October 28, 2010 at 10:22pm by Lyn

Physics- Elena please help!
An accelerometer in a control system consists of a 2.42 g object sliding on a horizontal rail. A low-mass spring is connected between the object and a flange at one end of the rail. Grease on the rail makes static friction negligible, but rapidly damps out vibrations of the ...
Sunday, October 7, 2012 at 2:13pm by Anonymous

Physics
A coiled Hookean spring is stretched 10 cm when a 1.5kg mass is hung from it. Suppose a 4 kg mass hangs from the spring and is set into vibration with an amplitude of 12 cm. A. Find the force constant of the spring. B. Find the Maximum restoring force acting on the vibrating ...
Wednesday, February 16, 2011 at 12:53pm by Kristin

Engineering
A 50 lb bar rotates clockwise 2 rad/s. The spring attached to its end always remains vertical due to the roller guide at C. If the spring has an unstretched length of 2 ft and a stiffness of k=6lb/ft, determine the angular velovity of the bar the instant it has rotated 30 ...
Sunday, May 1, 2011 at 8:05pm by help please

physics
A 85 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 3.5 m/s. How fast is he going as he lands on the trampoline, 3.0 m below? If the trampoline behaves like a spring of spring constant 5.2 x 10^4 N/m, how far does he depress it? My ...
Monday, May 28, 2007 at 8:37pm by micole

PHYSICS
Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their camera. They set up vertically alongside the mass and spring. A pointer attached to the mass allows the scale on the meter stick to be read as ...
Thursday, August 4, 2011 at 8:02am by Melissa

PHYSICS - HELP
Two ingenious 120 student students decide to use an oscillating mass on a spring to check the shutter (exposure) time of their camera. They set up vertically alongside the mass and spring. A pointer attached to the mass allows the scale on the meter stick to be read as ...
Friday, August 5, 2011 at 1:33am by Melissa

Physics
A mass is hanging on the end of a spring and oscillating up and down. There are three forces acting on the mass, the force of the spring, the force of gravity, and the force of air resistance. Which of these forces can be associated with potential energy function? a. the ...
Friday, June 3, 2011 at 5:13pm by Ramsey

physics
An ore car of mass 42000 kg starts from rest and rolls downhill on tracks from a mine. At the end of the tracks, 6.8 m lower vertically, is a horizontally situated spring with constant 3.8 x 10^5 N/m. The acceleration of gravity is 9.8 m/s^2. How much is the spring compressed ...
Thursday, December 8, 2011 at 7:28pm by Stacy

physics
The inverted pendulum shown consists of a uniform rod of length L and mass M hinged at its base. A spring is attached a distance h from the pendulums pivot and has a spring constant k. At equilibrium the pendulum is perfectly vertical. For small amplitude oscillations from ...
Wednesday, May 1, 2013 at 11:36am by aisha

physics
A 215 g mass is attached to a spring and executes simple harmonic motion with a period of 0.250 s. If the total energy of the system is 2.30 J. (a) Find the force constant of the spring. 135.81 N/m (b) Find the amplitude of the motion. i just need help with what equation i ...
Wednesday, January 12, 2011 at 3:21pm by julie

Lakshman
A 2M box is set on top of a 12M box. There is friction beween the masses. The 12M box is pushed against a spring. The spring is compressed a distance X by a 12 M mass. The 2M box does not slide from its position on top of the 12M mass. (the two masses are at rest in respect to...
Monday, December 12, 2011 at 11:26pm by Uma

Physics
A 1.4 kg mass is attached to a spring with a force constant of 56 N/m. If the mass is released with a speed of 0.26 m/s at a distance of 8.6 cm from the equilibrium position of the spring, what is its speed when it is halfway to the equilibrium position?
Monday, May 14, 2012 at 8:09pm by Emily

Physics
A 1.4 kg mass is attached to a spring with a force constant of 56 N/m. If the mass is released with a speed of 0.26 m/s at a distance of 8.6 cm from the equilibrium position of the spring, what is its speed when it is halfway to the equilibrium position?
Tuesday, May 15, 2012 at 9:11am by Mike

physics
Thanks for showing some evidence of your own work. The mass will be released when the spring & mass reach the equilibrium position, (x=0), together. That takes 1/4 of the period, or 1.075 s. After release, the object travels at constant velocity. It is not clear whether by "...
Friday, November 27, 2009 at 6:11pm by drwls

Physics - Spring
KE at impact=PE stored in spring 1/2 m v^2=1/2 k x^2 solve for x
Tuesday, October 26, 2010 at 5:12am by bobpursley

physics
A block of mass 2 kg is propelled by a spring with spring constant k=5200N/m onto a smooth (frictionless) track. The spring is initially compressed a distance of 0.13 m from its equilibrium configuration. At the end of the track there is a rough inclined plane at an angle of ...
Thursday, October 28, 2010 at 7:47pm by Nicole

calculus/physics
Assuming an ideal spring (linear) and using Hooke's law, the force generated by the spring is: F = -kx (1) where x is the distance the spring is stretched from the rest position. So, substituting the info into (1) you get: -10 = -k(2) or k = 5 lb/in work is the 1st integral of...
Thursday, March 11, 2010 at 9:47am by FredR

Physics
A spring with a force constant of 4.5104 N/m is initially at its equilibrium length. How much work must you do to stretch the spring 0.070 m? How much work must you do to compress it 0.070 m?
Tuesday, March 9, 2010 at 11:36pm by Franky

physics
A vertical scale on a spring balance reads from 0 to 220N . The scale has a length of 15.0cm from the 0 to 220N reading. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.45Hz . Part A Ignoring the mass of the spring, what is the mass m of ...
Tuesday, December 10, 2013 at 1:54pm by Becca

physics
A block of mass = 0.85 kg is connected to a spring of force constant = 775N/m on a smooth, horizontal surface. 1) Plot the potential energy of the spring from = -5.00 cm to = 5.00 cm. 2) Determine the turning points of the block if its speed at x = 0 is 1.1 m/s I am so stumped...
Sunday, October 16, 2011 at 4:53pm by leeece

physics
A block of mass = 0.85 kg is connected to a spring of force constant = 775N/m on a smooth, horizontal surface. 1) Plot the potential energy of the spring from = -5.00 cm to = 5.00 cm. 2) Determine the turning points of the block if its speed at x = 0 is 1.1 m/s I am so stumped...
Sunday, October 16, 2011 at 4:58pm by leeece

Physics
A 2kg object is attached to a spring and undergoes simple harmonic motion. At t=0 the object starts from rest, 10 cm from the equilibrium position. If the force constant of the spring k is equal to 75 N/m, calculate a. the max speed b. the max acceleration of the object. Fine ...
Monday, January 21, 2013 at 6:37pm by Mary

Physics
My answer was 19.8 cm but it was incorrect. A basket of negligible weight hangs from a vertical spring scale of force constant 1500 N/m. If you suddenly put a 3.00 kg adobe brick in the basket, find the maximum distance that the spring will stretch. Answer: 3.92 cm If, instead...
Saturday, October 9, 2010 at 10:48am by .

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