Distributed Definition and 210 Threads

Hi guys, I was wondering if it is possible to have a pure planar rotation of a rectangular-prism shaped rigid body on a planar surface when it is subjected to a planar point force at the tip. Is there any range for the point force such that it can not break the static friction force (so no...

Ok, so randomizing three random variables, X, Y and Z, each from a standard normal distribution, then plotting these in an ordinary cartesian coordinate system gets me a spherically symmetric cloud of points. Now I want to create this cloud having the same probability distribution but by using...

Homework Statement Find the number of ways in which seven different toys can be given to three children, if the youngest vis to receive three and the others two. Homework EquationsThe Attempt at a Solution 7 combination 3 × 4 combination 2 × 2 combination 2 = 210 Is this the correct way of...

Homework Statement How do I find the total charge from a material with a charge density given by \rho =10^{-9} \text{cos}\left ( \frac{z}{z_0}\right ) C/m^3 that exist between \frac{-\pi}{3}z_0<z<\frac{\pi}{3}z_0. Homework Equations None I can think of. The Attempt at a Solution Attempt #1...

Homework Statement I am not yet at the chapter of equations of equilibrium, plus it says the couple moment is not 0, so I assume it just about the loadings and not including the reactive forces and reactive moment. Homework Equations F= 1/2*b*h M= 1/2*b*h*d The Attempt at a Solution So if I...

Homework Statement This is the question, but with me 6 kN/m is 4 kN/m and 2 kN/m is 2.5 kN/m. I am not yet at the chapter of equations of equilibrium, plus it says the couple moment is not 0, so I assume it just about the loadings and not including the reactive forces and reactive moment...

Homework Statement Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. The electric field at a point P, which is 0.50 m from the center of the sphere, is 15,000 N/C and is directed radially outward. At what distance from the center of the sphere does the...

Homework Statement Four people are dealing the total amount of money, which is 1000 monetary units in terms of 100 monetary units. Count the number of ways for this distribution if: 1) Every person doesn't have to get any money 2) Every person will get at least 100 monetary units 3) First...

Consider the case of a distributed computing system based on the processor-pool model that has ##P## processors in the pool. In this system, suppose a user start a computing job that involves compilation of a program consisting of ##F## source file ##(F < P)##. Assume that at this time the user...

A distributed system has 3 nodes ##N_1##, ##N_2## and ##N_3##, each having its own clock. The clocks of nodes ##N_1##, ##N_2## and ##N_3## tick 800, 810 and 795 times/ms. The system uses the external synchronization mechanism, in which all 3 nodes receive the real time every 30 seconds from...

Homework Statement Say I have a detector that detects alpha-particles of some decay process. Let N be the amount of particles detected and let N be Poisson distributed. If I now define the intensity to be the amount of detected particles per second I = N/t, what would the standard deviation of...

Homework Statement i am asked to find the reaction at A and B ... Here's my working : 15(3/2) +15(5) +15(6)+5(6/2)=RA +RB moment about A = 15(3/2)(3x2/3) + (15)(5)(8) + (5x6/2)(8+4) + (15)(6)(14) -RB(14) = 0 so , i have my RB=148.9N , RA= 53.5N , which is wrong ? which part of my working is...

Homework Statement Find the number of ways to distribute 55 identical coins among three people, so that everyone gets an odd number of coins. Homework Equations Stars and Bars Formula [/B]The Attempt at a Solution (n+r-1,n-1) Ways to place r indistinguishable objects into n distinguishable...

For three dice, you can have 6 * 6 * 6 = 216 permutations (order matters). The dice has a uniform probability distribution of p(x) = 1/6. Easy. I'm trying to get an estimate of how many permutations you can have if a variable has a normal probability distribution. So for example, if a...

Hi all, my professor has hinted at proposing a question of this sort to us for a shear and bending moment diagram. Now while I am comfortable with having [either] a uniformly distributed load or a varying one, I'm not sure how to deal with both. I can't seem to find anything in my textbook to...

Homework Statement find internal normal, shear, and moment forces at point C, P=8kn The Attempt at a Solution for the most part I can solve this entire question but looking at the solution for it one of my equations is different and I cannot figure out why. my equation for finding T(tension...

Homework Statement In a course I am studying, I have been asked to calculate the distributed parameters of a line whose Pi model has been provided. I simply quote the question here for clarity of my question: Homework Equations C = \frac{{2\pi \varepsilon }}{{\ln \frac{b}{a}}} R =...

1. The problem statement, all variables and given/known my book says inside of a uniformly distributed sphere is zero and it also says it is not it is increasing. I didnt understand any single thing it is like kidding me? Homework EquationsThe Attempt at a Solution

Homework Statement .A ring-shaped conductor with radius a = 0.025 m has a total positive charge Q = 0.125 x 10-9C uniformly distributed around it. The center of the ring is at the origin of coordinates O. What is the electric field (magnitude and direction) at point , which is on the x-axis at...

I'm working on a homework problem for Statics and I'm stuck. Could someone please help?Problem: Draw the internal force (N,V,M) diagrams and include all significant figures Here is all of my work: Resulting F from W1: W(x) = W1 ∴ F2=∫02b W1dx eq (1) ⇒ F2 = W1⋅2b x1 = (F1)-1 ∫02b W1dx =...

Homework Statement I have to work out the reactions at A & D. Sketch the shear force diagram for the beam and sketch the bending moment diagram. i have worked out the reactions at A=56kN and D=34kN. I have done the SFD. I am just struggling doing the bending moment diagram and don't know how...

I have a problem that shows a triangular distributed load on a beam (studying for NCEES civil engineering exam). At one end of the triangle we have a force magnitude level of "w" and the other end is labeled "wL/6." They tell me that a triangular load is equivalent to a concentrated load of...

Homework Statement could someone explain why the terms in red represent the red distributed load in the attached diagram? Homework Equations http://postimg.org/image/3x0wywr4v/ The Attempt at a Solution the only term I think I understand is the -3<x-0>^0 but I'm not sure of the rest

Homework Statement Positive charge Q is distributed uniformly around a semicircle of radius a. Detirmine ##\vec{E}## around at the center of curvature P. Homework Equations $$\vec{E}=K\frac{Q}{r^2}\hat{r}$$ The Attempt at a Solution Taking a small slide of length dl from the semicircle...

Homework Statement Total Weight of System = 3301 kg Length, Width of Sytem = (4670mm, 1931mm) Calculated Center of Mass = (2261mm, 1065mm) Find weight at the following points: Point I (104, 1046) Point II (3182, 1867) Point III (3182, 225) Homework Equations Center of...

I've been thinking about the Central Limit Theorem and by my understanding it states that the sum of randomly distributed variables follows approximately a normal distribution. My question is if you have, say, 100 uniformly distributed variables that range from 0 to 10, their sum has to be...

Homework Statement Math and verbal SAT scores are each N(500, 10000) 1)If the math and verbal SAT scores were independently distributed, which is not the case, then what would be the distribution of the overall SAT scores? Find its mean and variance. Homework Equations The...

I am designing a a robot arm based on the two degree of freedom anglepoise lamp, like the typical desk lamp or Pixar lamp, that consists of two parallelograms, each balanced with a spring. The goal is to design it so that it remains statically balanced at all positions and let two springs carry...

From my textbook: "An electric charge that is uniformly distributed on the surface of a sphere, affects a different charge outside the sphere as though the whole charge was collected in the center of the sphere. This we exploit when we use Coulumbs law." Ive tried to prove this mathematically...

I am trying to figure out the deflection in a fully restrained beam. A diagram of the beam can be found here on this website. http://civilengineer.webinfolist.com/fb/fbcalcu.php I have been able to find the reactionary forces as well as the moments at each end of the beam for any distributed...

Hi everyone, So I am trying to study how different types of slurry will deflect a PVC pipe. The first step in my understanding is to reduce distributed load into a resultant force. I'm assuming that the resultant force will be placed in the center of the pipe (assuming a homogeneous...

Referring the question and my own worked out solution in the attachment, I could not get to the answer given that is Ra= 200 N, and Rc = 1300 N. Is there any calculation mistake I made?

Homework Statement http://postimg.org/image/7vpxry28t/ Can someone explain how they calculated the force R representing the distributed load? Did they even make use of the value "800N/m" from the question?

Homework Statement My question is this, they say that at point B the 30kN force is uniformly distributed If a force is uniformly distributed shouldn't the units be 30kN/mIf so, wouldn't that imply the point force would act in the center of the disk and the force would be be 30kN multiplied...

Assume we have X\sim\exp(\mu,\sigma^2). How does one compute \mathbb{E}\left(Xe^X\right) and/or what is the outcome value?

Homework Statement Suppose you have a beam with a transverse load P pointing down in the center, directly over the middle "spring". This beam is supported by 9 uniformly distributed springs of constant k. Compute the loads of the springs.Homework Equations You know that the problem is...

Homework Statement Three identical small balls of mass m with uniformly distributed charge Q each hang from a string of length L. The strings are all tethered at the opposite end at the same point. (a) Find the general equation for the angle θ of each string from vertical. Homework...

1149 The lifespan of a particular species of insect is normally distributed with a mean of $57$ hours and a standard deviation of $4.4$ hours. $90\%$ of the insects die after $t$ hours. Represent this information on a standard normal curve diagram, indicating clearly the area representing...

Homework Statement Homework Equations ƩFy=0 ƩM=0 The Attempt at a Solution Finding the reaction at A: ƩFy=0: A + (L*w0)/6 - (L*w0)/2 = 0 A = (L*w0)/3 ƩMA=0: MA - [(L*w0)/2]*(L/3) + [(L*w0)/6]*((2L)/3) = 0 MA = (w0*L2)/18 For the shear and bending moment: ƩFy=0: (L*w0)/3 - (x*w0)/2 +...

Is there an exact reason for the non-uniformness or is it all just random?I mean in the early stages of Earth's development when It was still hot, shouldn't all types of substances have spread more or less evenly?

just seeing how I did on this one:confused: The lifespan of a particular species of insect is normally distributed with a mean of $57$ hours and a standard deviation of $4.4$ hours. this is the normal distribution with $\mu = 57$ and $\sigma = 4.4$ tried to standardize this by...

Homework Statement The time it takes for a nurse to look up a patient journal is uniformly distributed between three and seven minutes. One morning there's 96 journal orders for the nurse to take care of. Calculate the probability that she will get them all done during an eight hour work...

Here is the question: Here is a link to the question: Help with Z Score Problem? - Yahoo! Answers I have posted a link there to this topic so the OP can find my response.

Any two dimensional state can be written as: |\phi\rangle=\cos\frac{\theta}{2}|0\rangle+e^{i\phi}\sin\frac{\theta}{2}|1\rangle where 0\leq\theta\leq\pi and 0\leq\phi\leq 2\pi, and 0\leq\theta\leq\pi. To pick one such state uniformly at random it suffices to draw \phi at random from its...

Picture of the problem: Relevant equations are the ones used to find the reactions at the supports (moment about points, forces in the x and y) and the ones used to determine the centroid. I'm having a hard time finding a. I found the moment of area for each triangle, with the origin at A...

I have a partial linearly distributed load on a cantilever and would to determine the bending moment distribution along the beam. I usually do this by taking cuts along different sections of the beam and finding the expressions for shear force and bending moment. However when I do this...

I have a practical application which relies upon the generation of evenly distributed points on a sphere. When I first considered this problem, I learned that some number of polyhedrons (Platonic polyhedrons) had each vertex lying evenly spaced from the others within the surface of a sphere...

Please explain your reasoning

Homework Statement The following data is hypothesized to possesses a normal distribution, is that hypothesis sustained by a Chi-square test at .05 significance: <66...4 67-68...24 68-70...35 70-72...15 72-74...8 >74...4 The Attempt at a Solution 1. I know that I should...

If you have a beam with a force q evenly distributed on top of it, would this ƩMA= 0 B*3,3-Cy*5,5-q*4,3*2,15=0 or this ƩMA=0 B*3,3-Cy*5,5-q*4,3*2,15*3,35=0 be the right way to set up the moment point calculations? Basically what I'm unsure of is if I must incorporate the distance...