Rod Definition and 1000 Threads

Röd (Swedish for Red) is the eighth studio album by Swedish alternative rock band Kent. It was released as digital download exclusively through the band's website on 5 November 2009 and physically on 6 November 2009. The first single from the album, "Töntarna", was released as digital download on 5 October 2009.
Röd is available in a standard edition and a deluxe edition box. The deluxe edition box version features the 11-track CD, a USB flash drive with high quality MP3 files as well as AIFF files, three 10" records which between them contain the whole album, and a 118-page book containing lyrics, abstract pictures and photographs. Due to distribution difficulties the deluxe edition was delayed until 11 November 2009.

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

    Moment of inertia of rod about an axis inclined

    Homework Statement What is the Moment of inertia of rod about an axis inclined? It is given as ## \frac{ML^2sin^2θ}{12} ## but how? Homework Equations I know MOI for axis passing through center along y-axis as ## \frac{ML^2}{12} ## The Attempt at a Solution Shouldn't it be ## \frac{ML^2}{12}...
  2. G

    How to divide pressure applied at a point on a rod?

    Hello Every one I want to know how the pressure applied at a particular point on a rod will be equally divided underneath of the rod. What materials are good to achieve this kind of situation?
  3. A

    Calculating Current in a Moving Rod U-Shaped Conductor Circuit

    Homework Statement If the U-shaped conductor in the figure has resistivity ρ (in Ω.m), whereas that of the moving rod is negligible, find the current I at time t. Assume the rod has length L, starts at the bottom of the U at t = 0, and moves with uniform speed v in the constant magnetic field...
  4. O

    Acceleration of a rod due to magnetic force

    Homework Statement A 2.60-N metal bar, 1.50 m long and having a resistance of 10.0 Ω, rests horizontally on conducting wires connecting it to the circuit shown in the figure(Figure 1) . The bar is in a uniform, horizontal, 1.60-T magnetic field and is not attached to the wires in the circuit...
  5. R

    Contact pressure of piston rod onto a surface?

    I have two images below. This is a single piston with pressure inside, the variables are as listed. P_in = 2700 Pa. P_out = 0 Pa. R1 = Radius 1 = 10 cm. R2 = Radius 2 = 5 mm. P_contact = ? My solution to P_contact is as follows. Area A1 of piston at R1 = .0314m^2 and area A2 at R2 =...
  6. nawand

    Speed of the rod as it leaves the rails?

    Homework Statement A rod of mass 0.720 kg and radius 6.00 cm rests on two parallel rails fig.1 that are the d=12.0 cm apart and L=45.0 cm long. The rod carries a current of I=48.0 A in the direction shown and rolls along the rails without sleeping. A uniform magnetic field of magnitude 0240 T...
  7. loreberto911

    Analytic mechanic, disk and rod

    < Mentor Note -- thread moved to HH from the technical engineering forums, so no HH Template is shown > A rod rolls without creep. And the disk rolls without creep on Q. The rod can just moves on y. Which is the relation among Va and Vohm? Va= velocity in A My resolution: in Q we know that...
  8. ellipsis

    How does the inclusion of a massive rod affect the dynamics of a pendulum?

    Consider a realistic pendulum with a bob of mass ##M## and a rod of mass ##m##. For the purposes of torque, is it correct to treat the bob and rod as two separate point masses, one at length ##L##, and the other at length ##\frac{L}{2}##? When I implemented this idea, I found that centripetal...
  9. S

    Calculating the Position of Center of Gravity for a Slender Rod Satellite

    Homework Statement Consider a slender rod satellite in a circular orbit. Show that the position of the center of gravity, ##\rho_G##, can be written in terms of the position of the center of mass, ##\rho_C##, as: ##\rho_G = \rho_C (1+\frac{l^2}{4\rho_C^2})^\frac{1}{4} ##, where ## l## is the...
  10. T

    How Does Impact Length Affect Dynamic Tensile Strength in Brittle Materials?

    Homework Statement Brittle materials as glass and ceramics have generally a much lower tensile strength than compressive strength. A rigid mass impacts the end of a bar (free-free) of such a material and a piece of the other end drops off. Is there a relation between the length of the piece...
  11. N

    Calculating Torque of Parallel Forces on Rod

    Homework Statement Two like parallel forces 20N and 30 N act at the ends A and B of a rod 1.5m long. The resultant of the forces will act at a point 1 90 cm from A 2 75 cm from B 3 20 cm from B 4 85 cm from A Homework Equations Torque=Force * Perpendicular distance The Attempt...
  12. kingsmaug

    Lost Kinetic Energy in Inelastic Collision of Putty and Pivoting Rod

    Homework Statement A piece of putty of mass m = 0.75 kg and velocity v = 2.5 m/s moves on a horizontal frictionless surface. It collides with and sticks to a rod of mass M = 2 kg and length L = 0.9 m which pivots about a fixed vertical axis at the opposite end of the rod as shown. What fraction...
  13. A

    Center of rotation of a free rod

    Suppose we have a free rod on a frictionless surface: if we hit it on a tip it will translate and rotate around its CM. What happens if we hit it at any other point between tip and CM? will it still rotate around CM?, if not, is it easy to find the center of rotation? If not, are the 3...
  14. X

    Rotational inertia of a rod that has mass on one end

    Homework Statement a 3 kg mass is on the end of a metal rod which is pivoted at one end. the mass of the rod is 2kg its length is 4 meters Homework Equations I=(ML^2)/3 The Attempt at a Solution the rotational inertia of the rod itself is 10.6 but i don't know how the 3kg mass at the end...
  15. M

    Charge on a point P from a uniform rod

    Consider a total charge of q = 3.50 10^-9 C spread uniformly over a thin rod of length L = 0.8 m as shown. Point P is a distance H = 0.6 m away from the midpoint of the rod. Find the magnitude of the electric field at point P. Relevant equations: E = k \int \lambda dx/r^2 where \lambda =...
  16. Satvik Pandey

    Rod colliding with the particle.

    Homework Statement A rod of length 2 m(##l##. and mass 16 kg (##M##) is projected vertically upwards from the ground, such that the top of the rod reaches a height ##h##. At the moment that it reaches its apex, a ball of mass 3 kg(##m## hits the top of the rod with a velocity of 10...
  17. B

    Centre of mass of a rod with varying density

    Homework Statement A solid metal rod with dimensions 5 x 2 x 1 is placed with one corner at the origin, such that 0≤x≤5, 0≤y≤2 and 0≤z≤1. The rods density is described by ρ(x) = (3x2 +10x) / 25 a) find the total mass of the rod b) find the x-coordinate of the centre of mass of the rod. Homework...
  18. H

    Angular acceleration of a rigid rod with a mass at both ends

    1. A rigid rod of mass M and length L rotates in a vertical plane about a frictionless pivot through its center of mass. Particles of masses m1 and m2 are attached at the ends of the rod. Determine the angular acceleration of the system when the rod makes an angle θ with the horizontal. In the...
  19. C

    Physics w/Calculus II Electric Potential, Non-Uniform Charge

    Homework Statement Picture of problem is attached A rod of length L lies along the positive y-axis from 0<=y<=L, with L = 0.400 m. It has a positive nonuniform linear charge density (charge per unit length) λ = cy2, where c is a positive constant and has a numerical value of 8.00 x 10-7. (a)...
  20. K

    Semicircular rod and Electric Potential Question

    Homework Statement A thin, flexible rod of length L = 10 cm carries charge Q = 91 nC uniformly along its length. The rod is then bent into a semicircle, as shown in the figure. Show all work and circle answers. a) Find the electrical potential at the center. b) Now we want to place a single...
  21. S

    Lagrange for Rod/nail swinging from horizontal plane

    Hi! I need to figure out the Lagrange Equation for a rod or nail swinging from a horizontal plane. The thing is, that while it is swinging back and forth, the while nail is moving along the X axis as well. I was thinking to use 1/2mv^2+(1/2)Iø^2 . Any help would be appreciated! Thanks.
  22. P

    Lagrangian of a 2 mass rotating rod

    Homework Statement A long light inflexible rod is free to rotate in a vertical plane about a fixed point O. A particle of mass m is fixed to the rod at a point P a distance ℓ from O. A second particle of mass m is free to move along the rod, and is attracted to the point O by an elastic force...
  23. parazit

    Control Rod Materials: List & Compounds Explained

    Hi Masters. I'm searching for control rod materials and so far I got the ones listed below. I know that the material selected for control rods should have a good absorption cross section for neutrons and have a long lifetime as an absorber. I just wonder the materials and compounds used in...
  24. Valerie Prowse

    Rotational energy & rotating rod

    Homework Statement Consider a uniform rod of mass 12 kg and length l.0 m. At its end, the rod is attached to a fixed, friction-free pivot. Initially the rod is balanced vertically above the pivot and begins to fall (from rest) as shown in the diagram. Determine, a. the angular acceleration of...
  25. J

    Does a rigid rod store any energy?

    I presume that a rod can be modeled as a spring with spring constant k and compression x. The potential energy in a spring is given by: E = \frac{1}{2}kx^2 If the spring is in equilibrium with an applied force F then we have: F = k x Thus the potential energy in the spring in terms of the...
  26. dexter_95

    Charge Rod Experiment: Why Didn't My Hand Neutralize?

    In the charged rod experiment, why didn't my hand neutralize the charge formed in the rod, since my body is a conductor and it is connected to the Earth?
  27. A

    Highest frequency of sound waves in a thin aluminium rod

    Homework Statement Estimate the highest possible frequency (in Hertz) and the smallest possible wavelength, of a sound wave in aluminium due to the discrete atomic structure of this material. The mass density, Young's modulus, and atomic weight of aluminium are 2.7x103kg m-3, 6x1010 N m-2, and...
  28. P

    Couple on rod in electric field

    Homework Statement Homework EquationsThe Attempt at a Solution THe answer given is B. I can understand why the resultant force is not zero as the field is not uniform. but for a couple, shouldn't the forces be equal. so how can B be correct? also, at some point, the rod will be horizontal...
  29. I

    Tension in rod of a bicycle wheel skewer

    The locking mechanism of a bike skewer consists of a rod and slightly out of round disk on one side attached to the skewer. A handle is attached to the out of round disk as well Assuming the skewer is nearly snug with the wheel fork, I think the tension is going to be a function of the...
  30. H

    Electric Potential Over Non-Uniform Rod

    Homework Statement The thin plastic rod shown in the figure has length L = 18.0 cm and a nonuniform linear charge density λ = cx, where c = 14.5 pC/m2. With V = 0 at infinity, find the electric potential at point P1 on the axis, at distance d = 5.10 cm from one end. Figure is attached...
  31. S

    Max Temp of Water Around Heated Square Rod

    Homework Statement A long squared rod with sides ##l##, thermal conductivity ##\lambda ##, specific heat ##c_p## and density ##\rho ## is cooled with water with constant temperature. Inside our squared rod we have a long square heater with sides ##l/2## and is completely centered inside the...
  32. T

    Relative angular velocity in a rotating rod

    Consider a rod AB rotating about one of it's end A with angular velocity w. Now angular velocity of each point of the rod is same i.e. w. But if we have to find the relative angular velocity of the end B w.r.t. mid point of rod, what it will be? Will it be zero because, w-w=0 or first we...
  33. B

    Moment Of Inertia Of Non-uniform Rod

    Hello, I am trying to find the moment of inertia of a uniform rod, that has a mass added to it at some position along it's length, which is equal to the mass of the rod itself, and the axis of rotation is at one end. 1. Homework Statement A uniform, \mathrm{1.00m} stick hangs from a...
  34. physicsisgreat

    Finding Angular Velocity and Center of Mass Velocity for a Free Rotating Rod

    Homework Statement I have a rod of mass m and length l on a table without any kind of friction. I give it an impulse J in any point of distance d from the center of the rod, parallel to the table and perpendicular to the rod. Find the angular velocity ω and the velocity of the center of mass...
  35. cyrus35

    Calculate the stress in the duralumin rod

    Homework Statement a duralumin rod of 50mm diameter is a loose fit inside a mild steel tube of 60mm outside diameter. if the steel tube is turned down to 55mm diameter over one half its length, calculate the stress in the duralumin rod and the stress in each portin of the tube due to an akial...
  36. C

    Finding the Potential of a Charged Rod on the x-axis

    Homework Statement Hi all, I need to find the potential of a positively charged rod with charge Q. Assuming to the right as positive,the center of the rod is on the origin, and it extends to -L/2 in the negative x direction, and L/2 in the positive x direction. There is a point at distance x...
  37. A

    Heating a metallic rod from one end by continuous heat flux

    What is the solution of heat transfer equation when there is continuous heating ( flux of energy) to one end of a metal rod? what will be the temperature profile before reaching the steady state? when I try the boundary condition where one end (x=0) is kept at T1, I got the general solution of...
  38. Eric Fossum

    Find an expression for the electric field(Mastering Physics)

    I just wanted to post a solution for anyone interested. Any notes on how to solve would be nice for others. 1. Homework Statement Mastering Physics (3rd edition) Problem 26.40 The figure (Figure 1) shows a thin rod of length L with total charge Q. Part A) Find an expression for the...
  39. K

    Gauge symmetry of cylindrical rod

    A twisted cylindrial rod has the cross sectional symmetry so that it's not posible to tell whether it is twisted or not without knowing if there is any torsional energy. now drawing a line on the surface of it can tell us whether or not it's twisted. It might not be a straight line.. there are...
  40. Nathanael

    Coefficient of friction; rod slipping off edge of table

    Homework Statement A rod of mass M and length L is placed horizontally on a table such that the center of mass is a distance L/6 from the edge of the table (CoM is hanging off the table). The rod is released from rest and slips after reaching an angle θ. Find the coefficient of friction \mu 2...
  41. praveenpandiyan

    How to Calculate Extension of a Rod with Varying Young's Modulus?

    Homework Statement see attachement Homework Equations dl= PL/AE The Attempt at a Solution as you see here my youngs modulus E varies linearly. i doubt that adding up E1 &E2 wld give solution.. any help?
  42. Satvik Pandey

    Collision of a particle with a thin rod

    Homework Statement A thin rod AB of mass ##m_{1}## and of length ##l## is placed on a smooth horizontal ground. A point sized particle of mass ##m_{2}## having a velocity ##v## making an angle ##\theta##with the line perpendicular to ##AB## collides with the rod at point ##A##. Assuming the...
  43. M

    Moment of inertia of a rod at an angle to the axis

    suppose a uniform rod of mass M and length L is at an angle B to the x axis, one end of the the rod touching the axis. wish to find moment of inertia about x axis. let the rod touches the axis at x=0. let D=density=M/L, and I will integrate along x axis, that means that at a distance x from the...
  44. J

    Why Is Mv2*l/2 Included in the Angular Momentum Equation?

    Hello :) I was doing some problem and i don't quite understand it, so i thought you could help a bit. The problem is: rod with mass M floats in space and then it is hit at distance b (measuring from the end of the rod) by a small particle with mass m. Collision is elastic. I know how i should...
  45. S

    Polar moment of inertia in a rod?

    How is the polar moment of inertia in a rod calculated? Thanks.
  46. G

    Push Rod Suspension Geometry Question Camber Change Wheels

    Hey, I've spent ages trying to solve what seems to be a pretty simple geometrical problem and I was wondering if anyone could help me solve it/give me some tips. I am trying to model how the suspension of a car behaves as a result of a displacement of the wheels. What the attachment shows is a...
  47. T

    Calculating Steel Rod Life with 8000 psi at 1000 °F

    1. Problem statement A steel rod supporting a stress of 8000 psi at 1000 ◦ F is not to exceed 5 % creep strain. Knowing that the steady-state creep rate can be expressed by an equation of the form ##\dot{\epsilon}_{s}^{C}=B|\sigma |^{n} exp \left(\frac{-Q}{kT} \right)## ε⋅, strain rate B...
  48. Satvik Pandey

    Just a confusion -- A mass falling onto a pivoting rod

    Homework Statement A rod of mass ##M## and length ##l## is pivoted at the center(##O##) in horizontal position. An object of equal mass(having velocity ##v##) falls vertically on the rod at distance ##\frac{l}{4}## from ##O## and sticks to it. Find the angular velocity of the rod just after...
  49. M

    Forces on a rod through a pressurized container

    Hi! A colleague and I were discussing pressures and forces when we arrived at a special situation where we do not fully agree and would like some help to better our understanding. Imagine a box/container with a hole in the middle of two of the opposite sides. A rod/cylinder goes fully through...
  50. Satvik Pandey

    Velocity of end points of the rod

    Homework Statement Rigid uniform Rod 'AB' of mass 'M' and Length 'L' is pulled slightly ( Gently ) at the bottom at time t=0 when it just reaches the horizontal ground, at that time find the Velocities of End Points of the rod. All the surfaces are friction less. Homework EquationsThe Attempt...
Back
Top