Spring Definition and 999 Threads

SPRING is a freeware GIS and remote sensing image processing system with an object-oriented data model which provides for the integration of raster and vector data representations in a single environment. It has Windows and Linux versions and provides a comprehensive set of functions, including tools for Satellite Image Processing, Digital Terrain Modeling, Spatial Analysis, Geostatistics, Spatial Statistics, Spatial Databases and Map Management.
SPRING is a product of Brazilian National Institute for Space Research (INPE), who is developing SPRING since 1992, and has required over 200 man-years of development and
includes extensive documentation, tutorials and examples. More than 70,000 users from 60 countries have downloaded the software, as of January 2007.

View More On Wikipedia.org
Recent contents Top users
  1. E

    Compression of a superconducting spring

    Let the length of the spring be ##x##, so that the extension in any given configuration is ##\delta = |x_0 - x|##. The magnetic flux through such a coil is $$\Phi = \frac{\mu_0 I N^2 A}{x}$$The fact that the coil is superconducting means that the flux linked will always remain constant even with...
  2. Nexus99

    Two masses, a rope and a spring

    I tried in this way: 1) Considering a reference axis oriented downwards: ##M_1:## ## -T + M_1g - k \frac{L_0}{2} = 0## ##T = M_1g - k \frac{L_0}{2} ## 2) ##M_2:## ##M_2g + k \frac{L_0}{2} = M_2 a## ## a = g + \frac{k}{M_2} \frac{L_0}{2} ## 3) ## M_2g \frac{L_0}{2} + \frac{1}{2} k...
  3. LCSphysicist

    What is the Period of Oscillation for a Spring Cut to One-Third Its Length?

    I am not sure if i get the problem, but if i understand, we want to know the period of oscillations on a spring with length l/3. If is this the right interpretation, i would say that the stiffness of the new the spring is k/n, where k is the stiffness of the former spring. This based on the...
  4. aspodkfpo

    An error made in a kinematics question about a spring launcher?

    Genevieve the galah wants to test out her new creation - the Nifty Numbat Launcher. It consists of a large, ideal spring with equilibrium length l1 = 1.7 m and spring constant k=41 N/m. The spring rests upon a ramp of length l1 inclined at an angle β=30∘ to the horizontal. The spring is attached...
  5. LCSphysicist

    How to calc the period of this mass spring system?

    This is a problem very easy to deal with if we consider the effective spring constant, however, i want to avoid this solution, and see how to justify the period of this motion just by analyse the forces or the energy, what seems a little hard to me. First of all we would need to find the force...
  6. LCSphysicist

    Why is my solution to finding the spring constant incorrect?

    This is my scope of the question, i could think to solve it by two steps, but before, let's give name to the things. X is positive down direction. X = 0 at the initial position o the platform Mass of the falling block is m1 Mass of the platform, m2 Spring constant k Δx is the initial stretched...
  7. Mahfuz_Saim

    Will the pebble meet with the block according to the given condition?

    Question 1: I have used v= Aω*cos(ωt+δ) where A= 0.2 m, ω= π/3, t=1 and δ=0. Are the values right in this case? I am confused. Question 2: From question 1 I have got the value of V which is 9 m/s. By using v= ω√(A^2-x^2), I have got the value of x. Now, do I need to add it with 2.5(distance...
  8. LCSphysicist

    Easy problem about two bars connected by a spring

    My solution: The distance between the block is x2-x1. x2'' = F/m2 - k(x2-x1)/m2 x1'' = k(x2-x1)/m1 x2''-x1'' = x''. x'' = F/m2 - kx(1/m1 + 1/m2) Being y = (1/m1 + 1/m2) That is> x = (lo - Fy/m2k)*cos(wt) + Fy/m2k xmin = lo xmáx = -lo + 2*F*y/(m2*k) = -lo + 2*m1*F/k(m1+m2) But the answer...
  9. Nexus99

    Period and Velocity of Oscillating Sphere Attached to Spring

    A homogeneous sphere of mass M and radius R is at rest on a rough horizontal plane with coefficient of static friction μ . A spring of elastic constant k, is connected to the rotation axis of the sphere illustrated in the figure. The center of mass of the sphere is positioned at rest so that...
  10. H

    Designing a DC Motor Torsional Spring Circuit with Arduino Uno

    I'm a relatively new entry into the world of electronics so my understanding of what is possible may not be an accurate one. In a nutshell, I would like to have a DC motor act as a torsional spring with some variable virtual spring constant (k). The motor, or "spring", would act against an...
  11. I

    Maximizing Cam Follower Mass for Contact with Rotating Cam: A Dynamic Analysis

    Hello, I have a problem in which I know the constant of the spring,the maximum and minimun force that the spring does to the camand the rotational speed of the cam.I am asked to find the necessary mass to attach to the spring in the follower so the follower always stays in contact with the cam.I...
  12. T

    Two carts are held together, and when released they are pushed apart by a spring

    Ever since the switch to online learning, I have been having trouble with understanding the topics right out of the book. And so I am just not sure if I am ever doing anything right in physics. So far I have calculated the KE of both carts KE(A)=0.634 J and KE(B)=0.254 J. I am unsure how exactly...
  13. T

    Spring: does it have mass or is it massless?

    I can easily do the second problem if only I knew the answer to the first. I am just not sure how I would go about figuring out if the spring has mass or not. And if it does, how would I calculate that mass?
  14. S

    Distance traveled and period of a mass - spring - pulley system

    1. How will the motion of M be? I assume wire S is inelastic so will M move downwards but not in straight line? (I mean M moves downwards but because the left side of pulley is connected to S, it will be static and the right side of pulley can go down along the extension of the spring so its...
  15. C

    Graphing a spring mass collision with a wall

    Hi, I'm looking for help making a graph/model for evaluating the "bounce" of a mass behind a spring that collides with a wall. The setup would include one simple spring mass system that is attached to a wall, and another wall which is closer to the mass than the spring's free length. The mass is...
  16. V

    Exploring Hooks Law & Oscillation-Method Spring Constants

    During an experiment, using Hooks law resulted in a spring constant of 7,8N/m while for the oscillation-method the constant was 8,6N/m. Could someone help me to clarify whay they differ and which vlsue is the correct one.
  17. M

    How Quickly Can a Conical Spring Expand from Compressed to Free Length?

    I require a small conical spring to open from its compressed pancake height of its wire diameter to a free length of 11mm > 0.2 seconds (20 milliseconds) The large end outer diameter = 7.80mm. The small end inner diameter must be greater than or equal to 2.75mm. The conical's spring's will be...
  18. E

    The maximum length that a spring can stretch in reality

    In detail, I came up with 424m for the stretched length of a spring in order to change the mass of an object by 10^-9kg which originally was 1 kg. Problem said, "is it feasible?" In my opinion, there is no spring that can be stretched for this long, so it is not feasible. However, I'm not sure...
  19. cwill53

    How can I solve the Spring Balance problem using alternative methods?

    Here is the diagram: I’ve only drawn the diagram and made equations for the sum of forces in the x-directions and y-directions: ##\sum F_{x}=(7 lbs)sin\beta+(8 lbs)sin\alpha=0## ##\sum F_{y}=(8 lbs)cos\alpha+(7 lbs)cos\beta-13 lbs=0##
  20. benorin

    2-d equations of motion for a Slinky going down stairs?

    This problem fascinated me in lower division physics. Find the 2-d equations of motion for a Slinky going down a flight of stairs (assuming the path of the slinky is planar; eg only going up and down and front and back, no side to side). I do confess that whilst I do love physics I’m not...
  21. tanaygupta2000

    Lagrangian of a spring mass system

    I know that from the given problem, I need to find the expression for Kinetic energy, KE = 1/2 m [r(dot)]^2 and Potential energy, PE = 1/2 k r^2 So L = 1/2 m [r(dot)]^2 - 1/2 k r^2 Hence H = 1/2 m [r(dot)]^2 + 1/2 k r^2 I assume that the fixed length r0 is provided to find the value of end...
  22. Zero

    A Spring pushing an object up a 25 cm slope

    f= kx = 150 n/m (.3m) = 45n Ug= 1/2 kx^2 = 1/2 (150) (.3)^2 = 75 (.09) = 6.75 j Ek= 1/2mv^2 6.75= 1/2 (.54) (v^2) 6.75= .27 (v^2) 25= v^2...
  23. omega_minus

    A Effective Spring Constant of a Chain Polymer

    Hi All, I'm doing research in magnetic nanoparticles that are coated with chain molecules (oleic acid, I believe) and I am trying to model these molecules' effective spring constant. The basic scenario is this: When a water-based ferrofluid is evaporated, it leaves behind only dried...
  24. Zero

    What is the equation for the object's velocity after being pushed in spring?

    Et1+w=Et2 1/2mv+w=1/2mv 0+150=1/2 (20) 300=(20)v 15=v I know this answer is wrong.
  25. wobblegobble

    Help with this problem about a mass oscillating on a spring

    A mass (M) is attached to a spring (K). Mass moves in a one dimensional plane (horizontally) 1) If mass M is initially at x=0, what is the minimum Work required to bring it to x=x0 ? PE ? 2) M is released from x=x0, PE when x=xo/2 ? KE ? 3) PE when x=0 ? KE ? 4) PE when x=-x0/2 ? KE ? 5) What is...
  26. Jshu

    Simple Harmonic motion calculation for a mass on a spring

    Im not sure how to find k if I'm not given a force or period.
  27. rakailee

    Box on a slanted plank with friction attached to a spring

    I first find the force of friction to be (2)(9.8)cos(65)(.22), then I find the pull of gravity to be (2)(9.8)sin(65). The full equation I set up to be: 0 = kx + force of friction minus the pull of gravity This gives me the wrong answer, 0.44 . My free-body diagram is that kx and force of...
  28. r12214001

    Using Energy Conservation to solve this problem: Jumping on a spring scale

    I suppose spring compression to be X when jumpping from 1m. Therefore gravational potential mgh=760(1+X) and my cal:760(1+X)=0.5kX² why the solution manual state that 760=0.5kX²+760X
  29. jschim

    Oscillating Spring in a Frictionless pulley system

    1. Draw Free body Diagram for each weight. 2. Solve for Tension in Rope. 3. Find Spring Constant. 4. Find omega (w, or angular velocity)
  30. coldadler

    How can I calculate the reaction forces of a torsion spring on a wall?

    Hi guys, I am working on design where I am using a torsion spring. And I need make an analysis and see the deflection of the walls. How can I calculate the forces that applied from Spring's legs to walls. Thank you all in advance.
  31. R

    Spring force after fixating with limited stiffness

    Hi folks, I have an interesting problem here from the real world, it's a design i am working on. So I have an object that is pressed by an hydraulic press with 50kN, let's call it F_before. Then I drive in a jig to fixate it. But the part that holds the jig has a limited stiffness. Hence if I...
  32. B

    Time period of a mass spring system

    I have attempted to draw a sketch of this but can't see how the data they gave me help to find time period This is what value I have ended up getting but I believe is wrong Much appreciated for any help!
  33. J

    Fortran Fortran subroutine solving for the velocity and displacement of a spring

    I have a simple Fortran code for solving velocity and displacement of spring, the code works fine when writing all together without using a subroutine. but as I am learning Fortran I tried to do it using subroutine, but I keep getting errors appreciate any help in advance. program msd implicit...
  34. H

    How Do You Calculate Pocket Depth for Different Compression Springs?

    Hi Guys, Forgive me, as it has been quite sometime since I have done my spring theory. The problem I am having is the following: This is the current situation: - In a steel block I have a pocket depth of 15mm - I have a compression spring with the following information: Outside diameter is...
  35. P

    Two pendula connected by a spring - normal modes

    I found the equations of motion as ##m\frac{\mathrm{d}^2x_1 }{\mathrm{d} t^2} = -\frac{mg}{l}x_1 + k(x_2-x_1)## and ##m\frac{\mathrm{d}^2x_2 }{\mathrm{d} t^2} = -\frac{mg}{l}x_2 + k(x_1-x_2)## I think the k matrix might be ##\begin{bmatrix} mg/l + k & -k \\ -k & mg/l + k \end{bmatrix}##...
  36. Amik

    Spring force question with a mass suspended on a spring

    Fnet=0 kx-mg=0 k=mg/x=0,25*9.8/0.2=12.25 But answer is 25(And they use 0.1 instead of 0.2 Why?)
  37. B

    Projectile Compresses a Spring Gun

    This is a common homework problem and I did find a post here that talks about it, but that post was closed to comments, so I am reproducing it to be able to ask a question. We are, apparently, according to solutions I have found, supposed to recognize that it is an inelastic collision, since...
  38. E

    Solving 2 Blocks on a Spring: Ma = Kx

    I honestly have no idea why I'm getting this question wrong, because it seems fairly straightforward. I thought that treating the two blocks as one object would work, so 5 + 3 = 8. With Fg = Fs, ma = kx. Then, 8 x 9.8/1300 = x. x would be 0.06. That's been marked as an incorrect answer, though...
  39. E

    Maximum compression of a spring?

    I found the amplitude of the simple harmonic motion that results (0.367, and I know this is correct because I entered it and it was marked as a correct answer), and assumed it would be the same value for the maximum compression since x(t) = Acos(wt). And, since the maximum value of cosine is 1...
  40. Physicsboi123

    Energy Conservation of a Vertical Spring

    Using conservation of energy, 0.5kx^2=mgh=mgx 0.5kx=mg 0.5kx=mg, x=0.15, m=9, g= 9.8 So isn't it k= 1176N/m? For this problem, I understand that you can't use conservation of energy, but why? There is gravitational potential energy at the top and spring elastic energy at the bottom, and no...
  41. adil_mohammad

    Polymers that have spring properties similar to spring steel

    Hello everyone, First of all a very happy new year to everyone! And a big thank you to all the people who contribute to this forum, I have learned so much from here. I am prototyping a design for a part that will be used in a consumer product. I am in the early stages of researching...
  42. N

    Exploring the Role of Gravity in Spring Potential Energy: A Scientific Analysis

    0
  43. N

    Energy & Spring: Rejuvenate Your Life

  44. CaglarKorkmazgoz

    Why Can't Forces Replace Energy Conservation for Spring Stretch?

    Hello, I am new on this forum, so if I make any mistakes please inform me. Thank you. I wonder why I cannot use forces instead of energy conservation in this question. The question is: "How far (x = L) does the spring stretch before the masses stop moving? Express your answer in terms of m, k...
  45. R

    Calculating the spring displacement response from an acceleration input

    I'm working on a project where we have a mass (50 kg) sitting on a spring (350 N/mm) and are subjecting it to a sudden impulse (20g) along the spring axis to simulate a shock. We have the profile of the acceleration defined as: ##a(t) = x''(t) = P\cdot \sin^2 (\pi \cdot t / T)## Where P (peak...
  46. C

    What is the tension force at the top of a spring?

    Good afternoon, I have some doubts about the tension force suffered by a spring to which a mass is hung and which is making a simple vertical armoin movement. My doubt lies in the fact that at the bottom of the pier (where the mass hangs), the spring exerts the restoring force that is given by...
  47. C

    Doubts about the method of determining the elastic constant of a spring

    Good afternoon,I am preparing a laboratory report on the study of the oscillations of a spring and the following questions have arisen:The script asks us to represent the mass against the squared period, in this case, the slope will correspond to the spring constant divided by 4Π^2 and the...
  48. Ammar2211

    A block of mass m is dropped onto the top of a vertical spring....

    Summary:: A block of mass m is dropped onto the top of a vertical spring whose force constant is k. If the block is released from a height h above the top of the spring, a) what is the maximum energy of the block? b) What is the maximum compression of the spring? c) At what compression is the...
  49. Storm_Eagle

    Bistable spring mechanism with a different transition point?

    Hi. I have a application for a bistable spring mechanism. But my problem is that all of the ones i have seen require to go past the "midpoint" before it flips to the other side. Is there any such mechanism that flips over to position 2 before you get to the "midpoint" from position 1? Example...
  50. Hajarmq

    Rotation and spring force exercise

    Summary:: Calculating the inclination angle A stick is on two springs with spring constants D1=500N/m and D2=300N/m. Consider the stick is without mass and can rotate around the point E, which is distant from spring 1 with 0,1m and from spring 2 with 0,8m. A force F=100N pulls the stick up...
Back
Top