Figure Definition and 608 Threads

Homework Statement a 20kg block rests on a horizontal surface and is attatched to a mass of 3.5kg by a cable,the pulley is frictionless ans the coefficient of static frition is 0.2 prove that the mass is not suffcient to start the block moving,what is the additional mass that would be...

Well, I am now trying to figure out a single variable expression for Sin. I have a couple ideas using some pieces of geometric formulas I have played with recently but this is still new to me. I'm not talking about sin x, but an algebraic expression for the sin wave. Any thoughts?

I've got a problem with perpendicular planes in Matlab. I start with a plane A and a point P in A. I calculate a plane B perpendicular to A through point P. Equation plane A: -21660x + 1036y + 4669z = 9.22e6 Point P: [129, 46, -1925] If [a,b,c] is the normal vector of plane B, I choose b = 0.5...

So I am very interested in physics but cannot always grasp all the topics fully, so I decided I would get help with this from others. First, I play football and am more of a student of the game than athletic. So I was thinking about the way a person throws a football. Given the footballs shape a...

Hello guys, I know this topic has been issued many times before. However I have an issue I can't find a solution for. I have a master file that calls another sub tex file using \include{}. This sub tex file has insert figures, I use insert figure options in the editor and the figures...

Consider the circuit shown in the figure below, where C1 = 4.00 µF, C2 = 7.00 µF, and ΔV = 18.0 V. Capacitor C1 is first charged by closing switch S1. Switch S1 is then opened, and the charged capacitor is connected to the uncharged capacitor by closing S2. (a) Calculate the initial charge...

hello, i designed a project and i finished it my final step is i want the user to enter 3 bits if it was 000 i will do the first choice, which has 4 inputs and 14 outputs displayed on the 2 digit 7 segment dispaly if it was 001 i will do the second choice, which has 5 inputs and 7 outputs...

Mechanical Power Transfer, trying to figure out the wiggle factor? I’m trying to figure out “power transfer” using drive belts, probably serpentine, possibly cogged. If you have a primary drive belt that comes forward from say a 25Hp motor to power a secondary serpentine belt. The thing I...

Homework Statement I'm trying to figure out how much velocity is required to move 1000 kg car up a hill that has a .02 percent grade and a friction value 0.7. Homework Equations F= μmg cosθ The Attempt at a Solution F = 6866.99 N If this is correct how do you get this...

Homework Statement I can't figure this one out. I can't use any of Newtons laws to solve this, kinetic formulas, and w=Em+Ek doesn't seem to be working for energy. I know the answer, but I can't solve it. kg = kilogram m/s = meters per second m = meter A 0.002kg bullet is traveling at...

Okay, i know people saw that Earth is pulling everything towards each other and infact every other object is attracting each other. So there must be a force. But how did they discover the law i.e. F = GMm / r^2. They must have done some experiements to figure out this law and determine the...

Hey guy's, trying to figure out another closed form formula but this time for the sum of 1/squares of the first n consecutive integers. Or in other words: 1/(1^2) + 1/(2^2) + 1/(3^2) + 1/(4^2) +1/(...= I tried using the same technique as last time by setting up the formula based on...

Homework Statement Moe measure the length of his spaceship as 350 m. Joe observes this spaceship as it flies by his position and measures that it took 0.700 s to pass through. What is the speed of the spaceship? l': the length of the spaceship as measured by MOE = 350m t: the time as...

Homework Statement A W figure. each of the 4 arms of the W has mass M, length L, and are at right angles. axis is in the plane of W, passing through the middle, vertically. Homework Equations i used the result I=M(L sinθ)²/3 for a rod inclined at angle θ with the axis, and axis...

Homework Statement http://img577.imageshack.us/img577/2069/inertia.gif The following figure with these known lengths are given. I need to find the moment of inertia.Homework Equations According to my book's facit, this is the solution...

Basically I am trying to find an expression that can add exponents. Here is an example, let's say we start with n=5, I need something that will calculate 5^2+4^2+3^2+2^2+1^1 by putting in whatever value for n that I choose. So far I have n^3+n^2(n-1)+n(n-1) The end, n(n-1) isn't working...

Homework Statement Question comes from this book http://www.anselm.edu/internet/physics/cbphysics/index.html In the section on rotational energy it gives the formula K_{rolling} = K_{translational}+K_{rotational} which it then expands to K_{rolling} = \frac{1}{2}mv^{2} + \frac{1}{2}Iω^{2}...

I made my first Lissajous figure with the informations i read on internet and i have 2 questions. First: Is it correct? x=sin(omega*t), y=sin(omega*2t) Second:How to make Lissajous figure for triangle waves? If sombody can explain me or give me somthing to read...

Homework Statement These are from a british columbia provincial exam from a few years ago. My teacher enlisted my help in trying to figure out a solution. This is supposed to be for physics 11. I can't figure it out. Maybe one of you awesome people can help me. Thanks... Question1. A...

x*log(x)=0.1*x^2

Hey, While working on a project I came across an equation and need some help to solve it. This is the equation T - log(T) = 1-R Where, T = variable whose value is to be found log base is 10 R = given value so basically right side of equal to sign is a constant...

Hi I know this isn't general math but I didn't know where else to post! I'm using this code to put a figure into my TeX document: \begin{figure}[htp] \centering \includegraphics[scale=0.5]{A} \caption{Flow patterns for non-Newtonian fluids for increasing rotational speeds...

Homework Statement The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center. When the skater's hand and arms are brought in and wrapped around his body to execute the spin, the hands and arms can be...

I have a MATLAB figure I want to put in a document. I'm using MikTex and Texmaker. However in the past half hour I have not been able to get this to work using any format and I tried everything I found on google. If I try to use .eps/.pdf file, all the axis labels disappear. And .jpg is ugly. I...

Im sorry to ask anyone this,but our dog Zeta was hitbye a car today and she is like our child. The car was a 1999 corvette Z06 and our dog weighed 85lbs. she was thrown in the air and landed 110 feet. I saw the whole thing which was the worst thing i could of ever seen. she has internal bleeding...

I would like to find a nice formula for \sum_{k=0}^{n - 1}ar^{4k}. I know that \sum_{k=0}^{n - 1}ar^{k} = a\frac{1 - r^n}{1 - r} and was wondering if there was some sort of analogue.

i know that the p.d measured across XY is the p.d. across resistor B in this picture: http://img812.imageshack.us/img812/7665/68689848.png But what if resistor B is removed like in this picture: http://img707.imageshack.us/img707/7798/41743055.png What is the p.d across XY now? Is it 0...

I am unsure how to solve this integral... \int5e^{\frac{t}{2}}sin(2t) dt Work I did: 5\int e^{\frac{t}{2}}sin(2t) dt integration by parts won't work I don't think therefore I am stuck.

A question, please. When mankind, through science, has answered all the questions about our universe and we fully understand everything about our universe and answers no longer create more questions, then where do we go from there? What's next? Also, what new technologies might also arise...

I can't figure this out , I've tried and tried but I was absent the day they explained this and I have no idea at all what decays/min is or any of that. I've solved 9 problems and I'm missing 4, and one of them is similar to this one that I will try to answer once you try explain this one to me...

I want to use Excel to figure out how much money, in dividends, I could make if I bought a stock in Microsoft, whose stock has recently stayed at $30-$31. They pay $0.80 in dividends/share. So far, I have a spreadsheet with columns "Years," "Shares," "Share Cost - Dividends," and...

Hi, since Peskin and Schroeder pretty much suppresses the indices in every equation, I am now unable to tell if a lot of these quantities are matrices or numbers. I try to look back, but I still can't seem to figure all of these out. In the Yukawa interaction, for example, the fermion propagator...

Hello! Can somebody help to figure out this pls? Sodium reacts in water to form sodium hydroxide and hydrogen gas. Write a balanced equation for this reaction and calculate how many grams of it are needed to prepare 8 g of sodium hydroxide by this method. Ar(H)=1 Ar(O)=16 Ar(Na)=23...

Hello everyone! I'm trying to solve some physics problems for my school and I'm very bad at it. I've only 1 problem left and I would appreciate it if you guys could point me in the right direction. But I want to say that I'm not from an English speaking country so I'll have to translate the...

Homework Statement Tambient = 85degC, Vout = 1.05V, Iout = 600mA, 3x3 package with thetaJA = 40 deg. Celsius /W, Tjmax = 150 deg. Celsius...What is the max input voltage that the LDO can support while maintaining these conditions? Homework Equations The Attempt at a Solution...

Homework Statement An = (((-1)^(n-1))n)/(n^2 + 1) I need to know if it converges or diverges and if it converges the limit. Homework Equations The Attempt at a Solution I know it converges to 0. But I don't know how to show it when evaluating. I tried evaluation An| in the...

Homework Statement The forces shown in the Figure below form a couple. Replace the couple shown with an equivalent couple acting at points A and B. Please see figure Homework Equations Couple force moment equation is M = Fd (take only one of the two force vectors and distance between...

Homework Statement the radius of the moon is 1 over 3.65 of the radius of the earth, while the acceleration due to gravity of the moon is 1 over 6 of that on the earth`s surface. calculate the mass of the moon.

Homework Statement Find the magnitude of the vector that is the sum of the three vectors , , and in the figure : figure is the link http://imageshack.us/photo/my-images/14/yf0134.jpg/ Homework Equations The Attempt at a Solution What I did was obtain Ax=0 Bx=7.5...

Homework Statement Problem for physics project (How morce force does a person use on another's head in a punch, kick etc) A 8lb medicine ball (to resemble a human's head weight) will be punched to accelerate X speed. Homework Equations (no clue what equations...) d=Vi t + 1/2 at^2 d=vtThe...

I apologize if this is in the wrong sections. But you guys seem to know your stuff when it comes to physics and math. My question is, when you are doing physics or math related homework and you've stumbled upon a problem you can't seem to figure out... what do you do? My problem is that I want...

My plan is to burn bio-matter like weeds and wood (or bio-fuel) in a zero-pollution scheme that collects the particulate material, oil, water and CO2 generated from burning the hydrocarbons and uses it for other purposes. It would filter out any toxins or NOx and vent N2. I know that I can...

Okay guys, I have a question and I am sure the answer is stupidly obvious but I can't seem to find a equation explaining it. I want to know the max possible voltage of the capacitor based on the distance between the plates, the Area of the plates, and the resistance of the material between the...

C is a known number, therefore I would only need to solve for a or b. Whats the best way to solve this, a few things come to mind, using a matrix or differential equations, but I'm not sure how they are applicable to this situation.

Hi, I'm new, if I forgot something in asking my question the RIGHT way please direct me to the correct way. Homework Statement A current of 0.3A is passed through a lamp for 2 minutes using a 6V power supply. The energy dissipated by this lamp during the 2 minutes is: Homework Equations...

Homework Statement Find the center of mass of figure , of uniform density Homework Equations X = m1 x1 + m2 x2 + ... / m1 + m2 ... The Attempt at a Solution i broke the figure in 4 rectangles and got individual center of masses my answers comes out to be (13b/8 , 5b/2)...

Homework Statement Well this actually a part of a different problem and there i want to make use of subscript function but its giving a funny problem . it's like this: public class test { void main(String m) { int a =m.length(),b=0; System.out.println(m.subscript(b,a)); } }...

I have a basic understanding of how to calculate gear rpm, but have no idea as to how one could figure out what size and number of teeth you would need if you want to give X turn to the drive gear to get a rack to slide Y inchs. Obviously I would want to contain the entire assembly in the the...

Homework Statement At 19°C, a rod is exactly 20.01 cm long on a steel ruler. Both the rod and the ruler are placed in an oven at 219°C, where the rod now measures 20.18 cm on the same ruler. What is the coefficient of linear expansion for the material of which the rod is made? Homework...

Homework Statement On a vacation, you are scuba-diving and using a diving mask that has a face plate and that bulges outward with a radius of curvature of 0.50 m. As a result, a convex spherical surface exists between the water and the air in the mask. A fish swims by you 2.5 m in...