What is Moments: Definition and 624 Discussions

Moments (stylized MOMents) is a Filipino celebrity talk show hosted by Gladys Reyes and aired on Net 25. It is a show for mothers and kids that feature the different bonding moments, child-rearing styles and the many facets of motherhood. It airs 7pm every Saturdays with replays on Mondays to Fridays at 10 A.M and Sundays at 11:30 AM / 12:30 PM.

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  1. J

    I beams and moments of inertia

    I recall that the shape of an i-beam is near optimal because of its moment of inertia. Does any have a reference that shows this, with explanation?
  2. J

    Calculating Ratios of Moments: Spatial Extent of Distribution

    I've been told that there are useful interpretations of the ratios of moments of probability density distributions, such as <x^4>/<x^2>. I only have un-normalised values of the second and higher moments of the distribution of interest. Is there any way of quantifying the spatial extent of the...
  3. S

    Method of moments and integration

    i'm learning the method of moments and I'm not understanding on how to do it. so for example, fy(y, theta) = theta*y^(theta -1). 0<=y<=1. to find the method of moments estimate for theta. the book does E(y) = the integeral from 0 to 1 of y * theta*y^(theta-1) dy. and that becomes...
  4. Y

    How do I find moments of inertia for different shapes?

    Hi, can anyone help me understand how to find the moments of inertia for the following: 1- A triangular lamina (isosceles) of mass M, base 2B and height H. about line of symmetry. 2- A uniform lamina of mass M, bounded by the curve with equation y²=4ax and the line x = 4a about the x-axis...
  5. C

    Moments of Inertia for a right circular solid cone of mass

    Hi there, I was hoping that someone here could maybe give me a hand with a couple of issues I'm having to do with moments of inertia. For a right circular solid cone of mass m, height h and base radius a, we have to show that its moment of inertia about a line through its vertex and...
  6. F

    Questions on Mechanics (moments)

    in the context of the lever, archimedes is recorded as saying ''give me a long enogh lever and i will move the earth'' explain in terms of moments the point archimedes was making how can i tackle this question?, i know the principle of moments the sum of the clockwise direction=the sum of...
  7. Ivan Seeking

    Favorite TV Shows, Skits, Plots, One-Liners, Moments, or Events

    Okay, we all know that TV is the spawn of satan and that no thinking person would be caught watching that garbage. With that said, what are your favorite or most memorable shows, skits, plots, one-liners, moments, or events. Personally, I was a complete TV kid and still am. I really watch...
  8. W

    Rotational moments of Inertia

    Pivot point on a Uniform Rod and Acceleration I'm stuck on this question, which seems like it should be fairly simple: A uniform rod of length 1.15 m is attached to a frictionless pivot at one end. It is released from rest from an angle theta = 21.0° above the horizontal. Find the magnitude...
  9. B

    Calculation of Moments of Inertia

    A uniform thin solid door has height 2.20 m, width .870 m, and mass 23.0 kg. Find its moment of inertia for rotation on its hinges. Is any piece of data unnecessary? So far, I don't understand how to calculate moments of inertia for things like this at all. I can do a system of particles...
  10. C

    The moment of inertia of the stool with respect to an axis at its center?

    Hi! I am working on this problem: A solid circular disk has a mass of 1.2 kg and a radius of 0.17 m. Each of three identical thin rods has a mass of 0.16 kg. The rods are attached perpendicularly to the plane of the disk at its outer edge to form a three-legged stool. Find the moment of...
  11. S

    Moments of Inertia, almost got it

    The problem is: Three identical thin rods, each of length L and mass m, are welded perpendicular to one another. The assembly is rotated about an axis that passes through the end of one rod and is parallel to another. Determine the moment of intertia of this structure. Ok what I know is...
  12. P

    Multipole moments using spherical harmonics

    Hello, My question is fairly simple. My instructor solved in class today Laplace's equation in spherical coordinates which resulted in spherical harmonics. I have not taken any quantum mechanics yet so this is my first exposure to spherical harmonics. What do the "l" and "m" terms in the...
  13. N

    Tetraphenylporphyrin and dipole moments

    A copper(II) ion fits perfectly into the center of tetraphenylporphyrin (TPP), and i was wondering if by doing so, will it become more polar or less polar than the original TPP? this is something that i forgot, but can someone please correct me if i am wrong? if a molecule has no dipole...
  14. C

    Calculating Moments of Inertia for Arbitrary Sections

    Hi all, Why are there so many moments of inertia for a given section? That is, i come across moments about the origin, x-axis, y-axis, centroid, xy-axis...etc... What are the differences? are there typical applications? Please point me in the correct direction Thanks in advance, any...
  15. O

    How can equations solve moments and equilibrium problems?

    Hello all. I'm not sure if this is the correct forum because I'm in the UK and I don't know what "Grade K12" is, but the sort of stuff in this forum seems to be the type of work we're doing. We've just started some work on moments and equilibrium and I'm having difficulty solving the...
  16. B

    Do Lone Pairs in Molecules Always Have Dipole Moments?

    Do lone pairs in a molecule have dipole moments? and does net dipole always go in the direction of the lone pairs?
  17. Q

    Funniest 'F.r.i.e.n.d.s' Moments

    We all know friends is over. What is the funniest-memorable scenes-lines ? :rofl: :smile: :approve: :wink: :biggrin: :tongue2:
  18. J

    How Do You Calculate Tension in Wires Supporting a Loaded Rod?

    I am having trouble getting to grips with moments and couples and i have got stuck on the following question: "A uniform horizontal rod AB is 120cm long and weighs 250N. It is supported by two veritcal wires, one 10cm from A and the other 20cm from B. Loads of 100N and 350N hang from the...
  19. T

    Periodic table trend for the value of dipole moments

    Hi! Does anyone know if there is a periodic table trend for the value of dipole moments...I tried looking it up on the internet and I haven't had any luck maybe someone in here knows..if you do please help! Thanks in advance!
  20. S

    Moments of Inertia: Practical Applications & Integration

    I am currently learning about how to calculate moments of inertia of various shapes. I can calculate them fine using the Parallel Axis Theorem, but I am having some difficulty trying to understand the overall concept. Can somebody give me some practical applications of MOEs? I am also...
  21. A

    Moments and equilibrium homework

    Hi all, I've been here before out of geneal interest but this is my first post, so i hope it's in the right spot. I have a problem that I need an answer to, unfortunately due to sickness i wasn't at school when we were taught the theory of moments (called torque by some). Anyway my...
  22. S

    Moments of Inertia: Calculating R & Summing Values

    In general, I=[inte]R2dm. First of all, what is R? R is the component of the position vector that is perpendicular to both the angular and linear velocity. Is this correct? EDIT: One more question. If we know the moments of interia of say two bodies, how do we find the moment of inertia...
  23. L

    Ending Strange Arguments: Simple Tips for Maintaining Peace

    I can't put it more simply than this: Please end this strange argument before I go mad over it.
  24. enigma

    Understanding Moments of Inertia & Tensors

    This may be a sort of odd question. I know what a moment of inertia is. I know what they represent, I know how to use them, I even know how to calculate them from scratch if need be. But I don't know why they are what they are. Why is it that this weird value with seemingly random d^2...
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