What is Table: Definition and 925 Discussions

A table is an item of furniture with a flat top and one or more legs, used as a surface for working at, eating from or on which to place things. Some common types of table are the dining room table, which is used for seated persons to eat meals; the coffee table, which is a low table used in living rooms to display items or serve refreshments; and the bedside table, which is used to place an alarm clock and a lamp. There are also a range of specialized types of tables, such as drafting tables, used for doing architectural drawings, and sewing tables.
Common design elements include:

top surfaces of various shapes, including rectangular, square, rounded, semi-circular or oval
legs arranged in two or more similar pairs. It usually has four legs. However, some tables have three legs, use a single heavy pedestal, or are attached to a wall.
several geometries of folding table that can be collapsed into a smaller volume (e.g., a TV tray, which is a portable, folding table on a stand)
heights ranging up and down from the most common 18–30 inches (46–76 cm) range, often reflecting the height of chairs or bar stools used as seating for people making use of a table, as for eating or performing various manipulations of objects resting on a table
a huge range of sizes, from small bedside tables to large dining room tables and huge conference room tables
presence or absence of drawers, shelves or other areas for storing items
expansion of the table surface by insertion of leaves or locking hinged drop leaf sections into a horizontal position (this is particularly common for dining tables)

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  1. H

    Should the periodic table be revised to this?

    Any opinions would be appreciated.
  2. T

    Why wont my Karate chopping hand pass through the table?

    In his PBS series videos, Brian Greene states the reason being electromagnetic forces between the charges in my body and the object (falling human and the ground in this case) In her book 'Warped Passages', Lisa Randall states the reason being the Pauli's exclusion principle for the fermions...
  3. O

    Rotational Motion - Turn table

    Homework Statement 4. (9) On an old style record turntable a small rubber wheel is used to drive the larger platter. They are mounted so that their circular edges touch and do not slip while in motion. The small wheel has a radius of 2.0 cm and accelerates at the rate of 3.5 rad/s2 while it...
  4. A

    Discuss the evidence from the periodic table

    Homework Statement Discuss the evidence from the periodic table of the need for a fourth quantum number. How would the properties of He differ if there were only three quantum numbers, n, l, and m? Homework Equations The Attempt at a Solution The Pauli Exclusion Principle...
  5. N

    Changing Variables in a Table: Solving Unknown Formulas

    problem: have a table (but not the one I need) with three 3 variables (one of these changing) and known answer for these. I need to change one variable but I do not know the formula. Is there any way to figure this out: known table: v1: 1,833 v2: 15,89 v3: 53/9 this gives me a table...
  6. fluidistic

    Quantum numbers in wikipedia's table

    I don't understand why there are 2 dashed values in this table: http://en.wikipedia.org/wiki/Quantum_number#Quantum_numbers_with_spin-orbit_interaction. I have that j=l+s,l+s-1,...,|l-s|. So let's take #1 of the table. They give l=1 and we know that s=1/2. Thus j=l+s=3/2 or j=l-s=1/2. Why...
  7. S

    Solving Glob on Table Homework: Final Speed & Angular Velocity

    Homework Statement On a frictionless table, a glob of clay of mass 0.72 kg strikes a bar of mass 1.34 kg perpendicularly at a point 0.23 m from the center of the bar and sticks to it. If the bar is 1.22 m long and the clay is moving at 8.3 m/s before striking the bar, what is the final...
  8. L

    Draw transition/excitatiob table for state machine

    Homework Statement draw transition/excitatiob table for state machine with jk flip flop. using the tables given Homework Equations excitation table for jk ff q qn j l 000x 011x 10x1 11x0 x is don't care table ps ns ns x=0 x=1 00 10 10 01 10 11 The...
  9. B

    What is the final velocity and angle of ball 2 after collision on a pool table?

    POOL TABLE PROBLEM. When ball 1 hits ball 2, they both go off at different angles. What is the final velocity of the second ball? GIVEN: ball 1=4 kg ball 2= 10 kg Vo1=8 m/s Vf1=3 m/s Vo2=0 θ=34 ° (ball 2 moves at a speed of 3 m/s @ 34°) Solve for Vf2 and the angle for ball 2 after...
  10. G

    What Temperature Does Each Element Become Plasma?

    Where can I find a list/chart of the temperatures at which elements reach the 4th state of matter known as plasma?
  11. D

    A body on a table with friction.

    Hello, I'd like to know if this is correct ... thank you. Homework Statement You are given that the coefficient of kinetic friction between the block and the table in the attachment is 0.560, and m1 = 0.135 kg and m2 = 0.260 kg. (a) What should m3 be if the system is to move with a...
  12. M

    Printing a multipication table from user input

    My assignment was to "create a Python script that will allow the user to input the starting value for the row and column of a multiplication table and then print to screen the table containing ten columns and ten rows. Include a header for each row and column" I was able to produce the...
  13. M

    Swinging Pendulum hits Block on Table- Find Distance and Acceleration?

    Homework Statement A 1.00 kg pendulum hanging from a length 1.50 m starts horizontal to the ceiling and swings (until it's perpendicular to the ceiling) to hit a 4.00 kg block. The coefficient of friction is .30. a) What distance does the block travel? b) Assuming there is no friction...
  14. G

    Table of Connection Coefficients

    Hello, I'm trying to find a table of basic connection coefficients. My GREAT desire is to find a table that includes the metric, connection coeffs, Riemann tensor, Ricci tensor and Ricci scalar for NORDSTROM's 1913 scalar theory of gravity. Does anyone know an online source of this info...
  15. M

    Python multiplication table and user input

    Homework Statement I'm having and issue with this problem, and I don't understand what I'm doing wrong, I really want to understand the material Write code that will print a multiplication table for 10 positive integers across the columns and 10 positive integers down the rows. Prompt the...
  16. D

    Is a spring longer hanging or flat on a table?

    Homework Statement Is a spring longer hanging or flat on a table? Homework Equations logic. The Attempt at a Solution I think the answer would be hanging because then the mass of the spring pulls it down a bit, thus stretching it more than when it is flat.
  17. D

    Boolean XOR truth table for w,x,y,z

    Homework Statement Recall that the Boolean addition is defined by the rule x XOR y = xy' OR x'y. Consider the Boolean function in four variables w, x, y, z defined by the formula f = w XOR y XOR xz XOR wxz XOR wyz XOR xyz XOR wxyz. A Karnaugh map method must be used to find all simple...
  18. K

    Bullet into block of wood on table edge

    Homework Statement A 17 g bullet traveling 475 m/s strikes a 0.7 block of wood that is balanced on a table edge 0.7 m above ground. If the bullet buries itself in the block, find hte distance D at which the block hits the floor. Diagram: Homework Equations Wnc = delta KE + delta PE...
  19. K

    Making a Home-Made Ping Pong Table: Bounciness and Fixes

    I made a home made ping pong table using a 5 millimeter thick wood sheet of size 4 feet by 8 feet. I found that my ping pong ball bounce less as compared to how much it bounce on official real table. Can you explain me what is the cause of this reduction in bounciness? Is there any quick...
  20. W

    Comp Sci Mulitplication Table in C++ with Loops

    I have to write a program in c++ that can be repeated as many times as needed. It should ask for a number to multply like Enter a number to multply: 5 output is this 1 x 5=5 2 x 5=10 3 x 5=15 4 x 5 =20 5 x 5 =25 Enter a number to multiply : 8 1 x 5=5 2 x 5=10 3 x 5=15 4 x...
  21. ssnapier

    How Far Can a Person Sit on a Table Without Tipping It Over?

    Homework Statement How Close to the edge of a 20kg table, can a 66kg person sit without tipping it over? The table is 2.2m long and there are two legs placed 0.5 m from each end of the table with 1.2 meters between the two legs and the top of the table is 0.80 m tall Homework Equations...
  22. B

    Friction between two blocks on a table

    I have a question for two scenarios (see the diagram attached): 1) When the two blocks on the table are at rest, the static friction the table exerts on the bottom block is counteracting the tension in the rope, resulting in a net force of zero. Is there any static force being exerted by the...
  23. M

    Calculating the Force to Move a 200,000 lb Table on 12 Wheels

    What would be the approximate force required on the perimeter of a 30 ft diameter table that weighs 200,000 lbs to move it? The table is sitting on twelve wheels (10" diameter each) that are mounted to ball bearings.
  24. T

    What are the criteria for classifying elements as metalloids and halogens?

    I'm currently studying grade 11 chemistry... And the periodic table of elements slightly confuses me. I am having trouble understanding which are metalloids, and halogens. In the handout that my teacher gave me, it listed the following as metalloids: B, Si, Ge, As, Sb, Te, Po, and At. It also...
  25. J

    Help, find a statement using a truth table

    i don't understand how i can find a statement in given truth table. p | q | r | S | ========== T | T | T | F| T |T | F | T | T | F | T | T | T | F | F | F | F | T | T | T | F | T | F | F | F | F | T | T | F | F | F | F | please help me.
  26. Barnak

    Mathematica Table item number in Mathematica

    I need to define some "Tables" in Mathematica, in which some elements contains their own item number, like the following example below : A := {a, b, 3 c, d} B := {1, b, c, d} C := {a, b, c, 4, d, e} D := {a, 2, c, d, 5, g} How can I do this ?
  27. L

    How to memorize the periodic table?

    So for my inorganic class we need to know the periodic table by heart, as we will not be getting one on our tests. While memorizing groups and periods in order doesn't hold that much practical sense (it would be much better to be able to just recall any element by it's number along with it's...
  28. N

    Solve partial derivatives from a table

    Let a represent the area, p the perimeter, d the diagonal, b the breadth, and L the length of a rectangle. One can easily write down from analytical geometry all the various relationships between the above variables, and from these obtain directly a variety of partial differential quantities...
  29. E

    Cayley table for group of points on elliptic curve

    Homework Statement Construct the Cayley table for the group of points on the elliptic curve y^2=x^3+x+4 over the field F7 of integers modulo seven. The Attempt at a Solution So I'm familiar with the constructing a Cayley table, but I've not encountered the group of points on the elliptic...
  30. D

    The movement of hockey pucks on an air hockey table.

    If an air hockey table is turned on and one end is elevated so the hockey puck slides to the other end freely. Would it take longer for a heavier puck to reach the end of the table before a lighter puck or vice versa?
  31. A

    Solving Formula for Truth Table: P & Q

    I need to find the formula involving \neg, \wedge or \vee for the following truth table with the variables P and Q: P Q formula F F F F T T T F T T T F The closest I've gotten is something like P\vee(\negP\wedgeQ) which clearly doesn't work for the last row. Any ideas?
  32. B

    LaTeX LaTeX table woes: It won't grow vertically

    Hi all, I have an odd problem with a table that refuses to grow vertically, instead, it just wanders off over the righthand edge of the page with each row only one line in height. I have other tables constructed after the exact same method as this one, but they do grow vertically. Confused...
  33. P

    MATLAB Getting Close with Matlab FFT for Fourier Transform Table Reconstruction

    I'm attempting to use Matlab fft functionality to reconstruct Fourier transform tables in my textbook (brigham), but to little success. Here is code to take the Fourier transform of cos(2*\pi*x*f_0), which should be \frac{\delta (f + f_0) + \delta (f - f_0)}{2} I can *almost* get it, but...
  34. Evo

    4 Restaurants Where You'll Never, Ever, Get a Table

    I'm wondering if this is a joke. It's sounds too bizarre to be true. Anyone know if this is a spoof? Read more: http://www.thedailymeal.com/four-restaurants-where-youll-never-ever-get-table/4177?page=0,0#ixzz1Tcd47sTO
  35. E

    LaTeX Creating a Time Table with LaTeX

    Hi, I am trying to do a time table as in the following code: \documentclass[a4paper]{report} \usepackage{lscape} \usepackage{multirow} \usepackage{bigstrut} \usepackage{array} \begin{document} \thispagestyle{empty} \pagestyle{empty} \begin{landscape} \begin{tabular}{*{11}{| m{1.5cm} |}}...
  36. O

    Yo-Yo on a table contradiction

    Homework Statement A Yo-Yo of mass M has an axle of radius b and a spool of radius R. Its moment of inertia can be taken to be MR2/2. The Yo-Yo is placed upright on a table and the string is pulled with a horizontal force F as shown. The coefficient of friction between the Yo-Yo and the...
  37. ZapperZ

    Would you buy a quantum table?

    I wouldn't. I don't see any resemblance to quantum physics. It looks more like a spaghetti table to me. http://scene360.com/main_news/10882/a-table-design-inspired-by-quantum-physics/ Zz.
  38. Y

    Frictionless, horizontal table radius and speed ?

    Frictionless, horizontal table...radius and speed...? The 0.20 kg puck on a frictionless, horizontal table is connected by a string through a hole in the table to a hanging 1.20 kg block. With what speed must the puck rotate in a cicle of radius 0.50 m if the block is to remain hanging at rest?
  39. S

    How to turn a table into an equation?

    Hey guys Sorry if this is a dumb question, but how do I turn a table into an equation? I need the line or curve to fit the points. And I need the line or curve to periodically go back to zero in between each point. Below are my numbers and straight line slopes. x y Slope 1 20 2 8 -12 3 9...
  40. N

    Producing Waveform from Frequency Table

    I'm working on a voice synthesizer. I have my computer set up to accept an 8-bit 44kHz waveform. I'm feeding it sines, adding sines together, and so on. It works great. However, I want to generate a sound given a frequency histogram. That is, I want to generate noise that has a specific...
  41. A

    Normal distribution table values

    Homework Statement Hi I need a clarification before my S2 exam on Thursday. How do I find a value of P(Z<0.7925)? This is bearing mind that all the table values are to 2 decimal places. Thanks. Homework Equations Normal Distribution Tables The Attempt at a Solution...
  42. G

    How Do You Calculate Covariance from a Joint Probability Table?

    A bag contains three green beads, two red beads and a blue bead. You select two beads at random. Let G denote the number of green beads and R the number of red beads you select. (a) Write the joint probability distribution of (G,R) in a table. Show that Cov(G;R) < 0. I can do P(G=g)...
  43. T

    What is the correct representation of torque in the provided physics problem?

    Hello pf! I'm self-studying physics on MIT OCW, and I'm confused about one of the challenge problems. (attached) I'm looking at problem #2, and I thought I had it understood, but when I looked at the solution the first thing that is stated is that τ = Rf - bF (f = the force of friction)...
  44. A

    The Mysteries of the Metaperiodic Table

    Hello. I recently read Theodore Gray`s book "The Elements" and was extremely fascinated by the small world of atoms. I was fascinated about the structure of atoms and wanted to know more about why and how they are composed. After studying a bit I hit a bit of a curiosity. Why don some...
  45. S

    Need statistical test for contingency table with very small and big counts

    I have a 2x2 contingency table, and I want to discover how likely it is that the two events are dependent. The top-left cell is usually in the range of 1-10. The bottom-right cell can be over 3 billion. The other two cells are in the hundreds or millions (exclusively). I have tried Pearson's...
  46. T

    Calculating pressure of cylinder on table

    Homework Statement A cylindrical metal block of mass 32 kg stands with its base on a horizontal table. The radius of the base of the cylinder is 4 cm. Calculate the value of the pressure on the table. Homework Equations Pressure = Force/Area The Attempt at a Solution f = ma, i...
  47. W

    RV folding table - Steel Tube question

    Hi All, Thanks for your time. I'm not an engineer nor do I play one on TV. Last time I did any load calculations was in a some college M.E. classes and that was so long ago we were all still using slide rules just a couple years before. No really. I'm going to build a fold-up table for my...
  48. S

    Advanced ICE Table (chemical equilibria)

    Homework Statement Derive an expression for equilibrium concentrations in terms of formality f (and Keq) for the compounds in the the equilibrium reactions shown bellow. Homework Equations A2 + 2S <---> 2SA SA <---> S + A Where S is a substrate (THF) and A is an adduct (BH3)...
  49. M

    Cofficient of static friction between table and rope

    Homework Statement If the coefficient of static friction between an table and a uniform massive rope is [tex]\mu[s] what fraction of the rope can hang over the edge of the table without the rope sliding? b]2. Homework Equations [/b] The Attempt at a Solution Frictional force...
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