Table Definition and 894 Threads

Hi guys, gals and guru's. My question is about Cold Fusion. 1)Where and from who did the Idea of Cold Fusion come about. 2) After being disproved experimentally years ago, what caught the NAVY'S Scientist's eye on why this was premature. 3) Has any lab outside of the US Navy been able...

Homework Statement 3 identical books, each with length L, are stacked over the edge of a table. The top book overhangs the middle book by 1/2L and the middle book overhangs the bottom book by 1/4L. How much can the bottom book be allowed to overhang the edge of the table without the books...

Hi all! Its been a while since i post question but here i came t ask one. 1.I am doing research on the physics of table tennis and i want to focuse only on the spining of the ball and the speed of the ball but i have some problem on the speed of the ball...

Homework Statement What is the magnitude of the normal force of the table on the lower magnet? (so there is a table with a magnet on top and below its surface) Homework Equations The Attempt at a Solution So i was wondering if someone could help me figure out all of the forces acting...

hi all, here's an interesting problem I've been working on in MATLAB. any help would be appreciated. i have four column vectors of length ~11000 (table1): in1 in2 out1 out2 11 4 101 47 1 8 111 9 38 1 1 39 ... i also have a matrix with dimensions 111x111 (matrix1): c1 c2...

Homework Statement Block A is on a table and is connected by a pulley to block B. Block A has weight Wa and block B has weight Wb. Once block B is set into downward motion, it descends at a constant speed. Assume that the mass and friction of the pulley are negligible. Calculate the...

Hi everyone, Does anybody know how to randomly shuffle the positions within a table about? For example a table T = {1,2,3,4,5,6...} gets randomly shuffled to be T' = {7,3,5,1,4...} [or whatever]. I thought there might be some kind of intrinsic RandomShuffle kind of function but can't find...

Homework Statement You have 3 masses. M1 = 4 kg. M2 = 1kg. M3 = 2kg, M1 is attached to M2 by a rope. M2 is attached to M3 by a rope. M1 is hanging from a pulley attached to the left end of a table, M2 is on the table, and M3 is hanging from a pulley attaced to the right end of the table. The...

Homework..urgent help 1.) If a woman lifts a 19.2 kg bucket from a well and does 6.83 kJ of work, how deep is the well? Assume that the speed of the bucket remains constant as it is lifted. 2.) A constant force of 38.3 N, directed at 26.9° from horizontal, pulls a mass of 12.1 kg horizontally...

I have written the function for the circuit as --> F= (W'.Z)(X.Y')+(Y'+X)+(Z+W) I am very confused on how to set up the truth table can someone help me?

Bowling ball and table! Can anyone please help me figure this one out; A bowling ball of mass 7.5kg traveling at 10m/s rolls off a horizontal table 1.0 m high. Calculate the velocity of the ball as it reaches the floor, ignoring air resistance and having an acceleration due to gravity of 9.8m/s.

Could anyone please explain to me how to work the following question out? A table-tennis ball of mass 10g is falling towards the ground with a constant speed of 8.2m/s. Calculate the magnitude and direction of the air resistance force acting on the ball.

Homework Statement A particle of mass m is moving on a frictionless horizontal table, attached to a massless string, the other end of which passes through a hole in the table. It was rotating with angular velocity \omega_0, at a distance r_0 from the hole. Assuming that I pull the string so...

Which table will be more difficult to tilt? ~ PLEASE HELP!? Hi, I'm very confused to answer this question, please somebody help. I need an exact scientific reason as well. The question goes like: There are three tables of different shapes: triangular, rectangular and circular. Which one will...

Homework Statement A cup sitting on the table contains 200g of water. You measure it at a certain time and it is 20 degrees Celsius. You leave the room and come back 10 minutes later. It is now 25 degrees Celsius. What can you conclude about the heat added to the water? [hint trick question]...

Hi people, here's my problem: A uniform, flexible rope of length D, mass M, hangs off a frictionless table-top of height greater than D. The length of the section of rope hanging off is A. Gravity accelerates the part of the rope that is hanging off, so the length of the hanging part increases...

Homework Statement If you launch a ball horizontally, moving at a speed of 2.24 m/s from a table that is 0.77 m tall, how far out from the base of the table will the launched ball land? Answers: a) 0.001m b) 0.9m c) 3.17m d) 8.5m Homework Equations v=vo+at v2=vo2+2ax...

Homework Statement An ideal spring of an un-stretched length 0.10 m is placed horizontally on a frictionless table. One end of the spring is fixed and the other end is attached to block of mass M = 10 kg. The 10 kg block is also attached to a massless string that passes over a small...

Homework Statement A chain lies on a frictionless table at rest, half off the edge, and half on. As soon as it is let go, it begins accelerating due to gravity only. Determine the acceleration of the chain as a function of time. The mass is m, gravity is g, and the length of the chain is L...

How do you get that working in Latex?

I am not a physics or math student ,but i am interested in physics i want to understand the nature So i started studying physics my main source is internet .So i need help from people like U . 1.what is limits how and where it is used ? 2.what is logarithm how that table is made? 3.what...

Homework Statement You are riding in a train and have just opened a bottle of beer. Prove that for your bottle to be as stable as possible on the table (which is shaking), you should drink sufficient beer such that the surface of the beer coincides with the centre of gravity of the...

I am wondering if somebody can please help me to locate a very accurate, complete periodic table. Specifically, I'm looking for one that is color, contains electron configurations, and is up-to-date and accurate to the typical number of decimal places. I've searched Google and was not happy...

Derive the circuit that implements the state table http://silvercurvemedia.com/alex/flyers/state%20table.jpg The Attempt at a Solution I know you can get your equations for the circuit from either the table itself or through a Karnaugh map, but I prefer using a karnaugh map. How exactly would...

I am a new to ANSYS command-language mode. I am having trouble animating the procedure described below. The procedure is meant to model melting over time through element death (based on example from U. Alberta at www.mece.uAlberta.ca/tutorials/ansys/AT/BirthDeath/BirthDeath.html). My...

Im currently studying electrical engineering and unlike in high school we are using lots of integrals solve physical problems (big surprise:P) Anyway i was wondering if anyone had a table of all integrals to help me see the relationship between different units. eg integral(Electric field) =...

Homework Statement A 0.090 kg remote control 24.2 cm long rests on a table, as shown in the figure below, with a length L overhanging its edge. To operate the power button on this remote requires a force of 0.460 N. How far can the remote control extend beyond the edge of the table and still...

Homework Statement The coefficient of kinetic friction between the 2.0 kg block in figure and the table is 0.350. What is the acceleration of the 2.0 kg block? Homework Equations F=uK*Force Normal Fnet=ma The Attempt at a Solution I tried to take the mass's of both the hanging and...

this question confuses me and my teacher hasnt been in school for the last 3 days and I am positive we have not learned anything like this. please help let B(t) be the population of Belgium at time t. the table below gives the midyear values at B(t), in thousands, from 1980 to 2000. Fill in...

Homework Statement A small block with mass m rests on a frictionless horizontal tabletop a distance r from a hole in the center of the table. A string tied to the small block passes down through the hole, and a larger block with mass M is suspended from the free end of the string. The small...

hi guys, i am having a problem with comsol. i want to simulate what force is needed to tilt for example a table on the floor. althought there is a problem in my drawing i think, because if i enter the solve mode you can see the floor actually pulls the table back on the floor when it actually...

A ball is projected horizontally from the edge of a table that is 0.823 m high, and it strikes the floor at a point 1.44 m from the base of the table. The acceleration of gravity is 9.8 m/s2 . What is the initial speed of the ball? An- swer in units of m/s. the table is .823 m high...

Hope this is the right place for this thread. Homework Statement Hi I need help with the truth table for a CMOS circuit. http://www.isk.kth.se/~william/dd/agda/bild/cmos/mos903.gif Homework Equations Truth table and What type of circuit is this? But I guess that's easy to...

Hey guys I am having a hard time trying to solve this problem and I was hoping someone could help me out with it because to be honest I don't even have any idea how to start it. Problem: Two identical blocks are tied together with a string and placed along the same radius of a turntable...

Homework Statement A rope of mass M and length L lies on a frictionless table, with a short portion L0 hanging through a hole. Initially the rope is at rest. Evaluate A and B so that the initial conditions are satisfied. The Attempt at a Solution Ok, so I understand the problem and...

Hi guys, I need some help from you. I was writing my thesis and I am having a problem in making a table. I wrote the following, \begin{table}[ht] \caption{Moody's and S\&P rating system with numerals} \centering \begin{tabular}{l l} \hline\hline Moody's Rating &...

Most of the time i play table tennis and I always think about physics of table tennis . My question is . Is there any a very brief introduction to the mathematics and physics on table tennis?

How will you get a table cloth of 12x12 units for a square table from a rectangular cloth of size 16x9 units in a single cut and placing two pieces together ?

Question: A total of 2n people, consisting of n married couples, are randomly seated (all possible orderings being equally likely) at a round table. Let C_i denote the event that couple i are seated next to each other, i = 1, 2, ... n. (a) Find P(C_i). There are two different ways to seat...

In a table in two different books they both say: \int \frac{1}{a^2-u^2}du=\frac{1}{2a} ln\left|\frac{u+a}{u-a}\right|+c but I am not having the same result: \int \frac{1}{a^2-u^2}du=\frac{1}{2a} \left(\int \frac{1}{a-u}du + \int \frac{1}{a+u}du\right) = \frac{1}{2a} \left(-ln\left| a-u...

:frown: Hello, guys. I need help. My professor ask us to search for the 20 scientists who prepared the Periodic Table. Well, so far, I only found 10 scientists. 1.Aristotle 2.Antoine Lavoisier 3.Jöns Jakob Berzelius 4.Johann Döbereiner 5.John Newlands 6.Lothar Meyer 7.Dmitri...

From the University of Nottingham, a video series on the 118 elements. http://news.bbc.co.uk/1/hi/sci/tech/7507986.stm Their website: http://www.periodicvideos.com/ And their YouTube channel: http://youtube.com/user/periodicvideos

Here is the setup to my question: You have a long table supported by two legs (think of the table as two-dimensional. in the real 3D table each "leg" could be a pair of legs, one behind the other). The tabletop is massless, but has some massive books sitting on it at various places. You want...

is there a better way to chart elements? surely chemicals characteristics don't behave by atomic number

Homework Statement Mass A, 15 kg, is on a table, connected by a massless rope and frictionless pulley, to mass B, 8 kg, which is hanging off the side of the table. The kinetic friction coefficient is 0.14. Find the acceleration of the blocks. The Attempt at a Solution...

Hi everyone, I am new here, and I am thirteen, but I am really into this and I have recently grasped (only on a basic level) quantum theory. I understand relativity and I am looking into many fields, such as cosmology. So, me and my dad were talking the other day, and he proposed the...

Homework Statement a box weighing 77N rest on a table. a rope tied to the box runs vertically upward over a pulley and a weight is hung from the other end. determine the force that the table everts on the box if the weight hanging on the other side of the pulley weighs 30N. (box in on the...

[SOLVED] acceleration of mass on table Homework Statement http://www.badongo.com/pic/3633497 The Attempt at a Solution The resultant force of the two hanging mases is 19.6 N. This means that just after the masses are released, the friction is 0.3*mg = 4.41 N, so that the total...

I recently did some personal research into the aforementioned functions. I created a few simple functions based in part on sine (and cosine). Anyway, the basic idea was to get a seed from the sine of some number, since -1 =< sin N =< 1. However, I think that sine is not an ideal function to...

I'm not quite sure where to post this but it certainly isn't homework/coursework so I suppose here is appropriate. The situation is that a friend claims something which I believe to be physically impossible happened, and though it is a minute and pointless point to argue about, I want to...