Table Definition and 894 Threads

has anyone ever memorized the periodic table?

Hello, where can I find something about Group Theory and Characters Table? How to construct it, what can we do with it, etc... Thank you!

I had a glass coffee table, it was 12mm thick (approx 1/2 ") I had this table for approx 5 months when one night, it just gave off a bange and collapsed (I wasn't in the process of placing anything on it, etc, it had no chips). Some small fragments were embeded into my wife and my hands. The...

Hey all, i'm doing a physics research on snooker but i don't really know the approximate frictional force acting between the pool table surface (which is made of a wool called baize) and the cue ball. Does anyone know it cos i need to calculate the decceleration of the cue ball as it rolls...

is anyone familiar with the BCA (Before, Change, After) table? if so i need someone to help explain the steps to solving an equation when you are only given the number of moles for one reactant

Hey, not sure if this should go here or not but it seemed the best place. I'm trying to find a rotating table and a motor for a doppler shift experiment a lot like the one on page 4 of this website: http://academic.reed.edu/physics/courses/phys100/Lab%20Manuals/Doppler%20Effect/Doppler.pdf...

please i need your help, this question is from my midterm exam ineed solution very quick, it is due next week! "your finger can provide an (n-1) multiplication table in base n, 2<=n<=10 as follow: hold n fingers in front of you. to multiply (n-1) by k in base n, lower the kth finger from the...

Hello, I am interested in making a vibration free table to make holograms. The way I was going to do it was to put innertubes under the corners of a box. Then fill the box with sand. I will test it by putting components on the sand to make a interferometer. Are there better ways of doing this...

I have a practice exam I'm going through, and I am stumped on one of the basic problems. How is this a transform pair? 10 X(jt) <-----> 20 \pi x (-\omega) I don't see how one can make this relation. What is the 10 X (jt) . thanks in advance

https://chip.physics.purdue.edu/protected/IEalgebraMimg/uiuc101-09-block.ie/pic.gif A small block of mass 0.91 kg slides without friction on a horizontal table. Initially it moves in a circle of radius r0 = 0.63 m with a speed 1.5 m/s. It is held in its path by a string that passes through a...

Homework Statement On a frictionless table, a glob of clay of mass .48kg strikes a bar of mass .94kg perpendicularly at a point .34m from the center of the bar and sticks to it. 1. If the bar is .90m long and the clay is moving at 8.4 m/s befor estrikning the bar, what is the final speed of...

table leg design... Suppose i want to make 4 table legs from aluminium square tube...how should I go about designing the dimensions of the square tube? The table itself needs to support a load of 90kg through the four legs. Help on this would be very much appreciated. Cabellos

I'm working on a chemistry assignment that involves creating redox tables. The explanation in the textbook isn't a very good one and I can't find my answer through google either :mad: Here's the problem: The following equations represent spontaneous reactions. From this evidence, set up a...

1. An autographed baseball rolls off of a 1.4 m high desk and strikes the floor 0.42 m away fro mthe desk. The acceleration of gravity is 9.81 m/s^2/ What was the cat's speed when it slid off the table? Anser in units of m/s. Since you want to find the initial velocity I used the...

Hi, I just made some changes to my partition table in linux using fdisk that are very bad. For the moment everything is fine but when I reboot those changes will take effect. Is there any way to restore my partition table from the good version that the kernel is still using? Thanks

I am looking for integration tables online that can help me to calculate integrals of the form: x^n e^(x^n) x^n cos(k x) sin(m x) e^(x^n)*cos(k x) sin(m x) x^n [cos(k x)]^n e^x^n [cos(k x)]^n Any help is much appreciated. I will learn and use tex in my future posts :smile:.

Homework Statement A physics student playing with an air hockey table (a frictionless surface) finds that if she gives the puck a velocity of 3.82 m/s along the length ( 1.65 m) of the table at one end, by the time it has reached the other end the puck has drifted a distance 2.47 cm to the...

Homework Statement Let's have 2n persons, n men and n women. Suppose they sit randomly around a table with 2n chairs. What is the probability that no two persons of the same sex will sit next to each other? The Attempt at a Solution Here's my idea: I will model this situation with...

Suppose we have a rod say 10 m long when it is viewed while both observer and rod are at rest. Now suppose this rod was moving at a speed of about 0.99c. then the rod's legnth viewd from a statioanry frame appears to be L = 10m \sqrt{1 - \frac{(0.99c)^2}{c^2}} = 1.41m now supose this...

Homework Statement A 10.0 kg mass, m1, on a frictionless table is accelerated by a 5.0 kg mass, m2, hanging over the edge of the table. What is the acceleration of the mass along the table? Homework Equations F=ma W=mg The Attempt at a Solution Can someone atleast point me in the...

Homework Statement There is a table with a 6.9 kg box and a 5 kg box on it, connected by a string. The string goes around a pulley on the corner of the table, between the 5 kg box and a 35 kg box which it holds up. The coefficient of friction is .55 b/w the table and 6.9 kg box and .33 b/w...

Hi, I am writing a visual basic databse program, and need a code to open a MS access table which is protected by a password. It can open the table without password. I need to protect it by password to prevent someone to open and edit it, but I have got a problem to let the visual basic...

Figure 9-47 (attatched) shows a 0.165 kg cue ball as it bounces from the rail of a pool table. The ball's initial speed is 1.60 m/s, and the angle 1 = 30.0°. The bounce reverses the y component of the ball's velocity but does not alter the x component. (a) What is theta_2? (b) What is the...

In a flip-flop fluidic (air logic) device like the one shown in the attachment what happens if both the C1 and C2 are closed for the truth table.

A mass of m = 3 kg is tied to a point by a massless spring with spring constant k = 14 N/m. Assume the spring has an unstretched length of zero. The mass is pulled a distance of d0 = 0.5 m from the center and given a speed of v0 = 2 m/s perpendicular to the spring. (The mass slides on a...

A small block of mass 0.91 kg slides without friction on a horizontal table. Initially it moves in a circle of radius r0 = 0.63 m with a speed 1.5 m/s. It is held in its path by a string that passes through a small hole at the center of the circle. The string is then pulled down a distance of r0...

Hi. My question is this. A uniform rod of length 2L is held resting on a horizonal table with length L+a projecting over the edge. If the support is removed, show tthat the rod willb egin to slide over hte ege when it has turned through an angle tan^-1(mu*L^2/(L^2+ 9a^2)). mu is the coeffiecent...

i need to write a program that sets up a table displaying values of n, sqrt n and ln n from n = 0 - nmax. I've prompted the user to enter a value for integer nmax. but then I've no idea how to make this apply for the value for nmax for my table. this is what i have so far //Problem...

The system shown in the figure is accelerating. Asume that there is no friction anywhere in the system and that the mass of the string can be neglected. The values of the masses are: m[SIZE="1"]1=5.00 kg m[SIZE="1"]2=8.00 kg Determine the acceleration of the system. Figure and work done so...

how many elements are there in group 18?

I am having trouble figureing out the y = mx + b of this if the table of values look like Distance Time (s) 25.000 0.000 24.920 1.000 24.678 2.000 24.269 3.000 23.685 4.000 22.913 5.000 21.932 6.000 20.712 7.000 19.209 8.000 17.349 9.000 15.000 10.000 11.874 11.000 7.000 12.000...

Multiplication table help please! Algebra ... Hi, I've come across this question in my algebra txtbook and the exercise asks to construct a multiplication table, verifying that the Quaternion Group forms a group under matrix multiplication. http://i12.tinypic.com/2i20wus.jpg I'm confused...

Hi I am in a rather hurry so a quick reply would be most appreciated. I have to make a table in which I put all the result that I have calculated, I just do not know how to make a such thing in LaTeX. I would like a table as in Word I just do not know how to make it in LaTeX!

Question: A book is resting on top of a table. 1. Do the downward force of gravity and the upward force of normal force constitute a 3rd law pair? (Yes/No) 2. The reaction to the force of gravity is exerted on the (earth/table/book) by the (earth/table/book). Its direction is...

Are there any programs available for download that are the periodic table? I am looking for something I can keep on my laptop. Also, can any of you recommend periodic table posters (I am looking for comprehensiveness)?

ok firstly i understand how the chain rule works however I am given this table x f '(x) g(x) g'(x) h'(x) 0 7 2 ___ 32 2 8 0 -3 ___ im told to fill in the blanks where h(x)=f(g(x^2-x)) this problem has become an annoyance at first i assumed to solve i would take...

I'm designing an online periodic table of the elements and I have a question about the lanthanide and actinide families. I notice that all periodic tables put them below the main table, aligned with groups 4-18. Does this mean that they fit into those groups? Or is it just placed like that to...

Particle statics- Three forces on force table I have the following problem: Three forces of magnitude 10, 25, 30 dynes are in equilibrium on a force table. a) find the angles between the forces algebraicly. b) find the angles graphically Here is how I attempted to solve a): I...

The Janet Periodic Table of Elements (1929) seems more "consistent" than the modern form. The location of any element (row, column) is directly related to the quantum numbers of the most significant electron of the element. Please see; http://ca.geocities.com/chemguy777/index.htm

Hey ya. I need some help with specific heat capacity. :cry: Does anyone know where i can find a table of specific heat capacity values? :redface: Also what are the units of specific heat capacity? do you have to measure the temperature in kelvin or degrees? Plz help, o:) Thanx

hello there about wat temp does ,Iron oxide, aluminum, baking soda, table salt melt? degress F please. and about how hot does a US conventional gas stove get? thanks. and aluminum foil is pure aluminum right?

A 600 g steel block rotates on a steel table while attached to a 1.20 m-long hollow tube. Compressed air fed through the tube and ejected from a nozzle on the back of the block exerts a thrust force of 4.30 N perpendicular to the tube. The maximum tension the tube can withstand without breaking...

Im working on a periodic table in vb.net and I want to start adding in the information for the density, melting point and boiling point for the elements. The problem that I am having is I need to find a source that I know has only entered these values for a specific temp and pressure. I prefer...

Why are there two rows separate from the general table at the bottom of the diagram? We just started chemistry this week and I'm interested in it, I might try to get it into an online course next year if at all possible, so I just felt like asking a question.

I read the instruction on how to make a hologram at http://www.3dimagenery.com and it says that you need optical table in order to make a hologram but the optical table is quite expensive for me . So, I want to ask that can I make the hologram as in the 3dimagenery website without using a...

I need help with these sort of questions where you have given a set of points and you must determine the equation, linear ones are easy but ones that are quadratic or cubic. So could go about and tell me how to determine equations of polynomials. Heres the set of points i am given. x...y...

Anyone has a nice, neat and complete ions table? I haven't found one yet. ---- Edit: Sorry, I have just found one. But if someone has a good sugestion do not hesitate.

How do I use two 8-bit sine table to make one 16-bit sine table? Here is my 8-bit sine table in verilog char sintable[256] for(int i=0;i<256;i++) sintable[i]=sin(2*pi*i/256)*128 I know I have to somehow use: sin(theta+ delta*theta) theta would be the first 8-bit and delta*theta...

I was wondering.. How can you modify a PF file to have the TOC organization in the drawer rather than the flat page preview? Some PDFs of large documents have an organization that separates the PDF into sections and when you select that element or an element from the tree below an element, it...

I need to find the best oxidizing and reducing agent in the periodic table and say why i chose what i chose. I think the best oxidizing agent is Fluorine and the best reducing agent is Lithium I am not sure if my predictions are correct and if they are I don't know how to explain why I...