Machine Definition and 918 Threads

Mechanic of Machine -- belt drive system Homework Statement An induction motor shaft, runnnig at 1200 rpm, drives a workshop main shaft by a flat belt drive. the diamter of the pulley on the motor shaft is 40cm n the main shaft is 70cm. another pully of diameter 45cm drives a countershaft...

Homework Statement Two weights, 75N (mass 1) & 125N (mass 2) are connected by a very light flexible cord that passes over a 70.0 N frictionless pulley of radius 0.200 m. The pulley is a solid uniform disk and is supported by a hook connected to the ceiling. What force does the ceiling exert...

Homework Statement I have attached a copy of the assignment problem. I have been having serious trouble finding the value of the force P. I know the equations to use for part b and c but I need to know the force P to complete the rest of the problem.Homework Equations a) The problem tells me...

Homework Statement Smaller mass on an Atwood machine is 5.2 kg (m1). If the mass accelerates at 4.6 m/s2what is the mass of the object? What is the tension of the rope? Homework Equations a = g(m2-m1)/(m2+m1) The Attempt at a Solution I can't approach this questions, because we...

1. In the experiment(using a Atwood machine), should the mass of the string be added to the total mass moved by the unbalanced force for better accuracy? Explain. I think the answer is no because the weight of the string is very small and when doing the calculations to find acceleration, one...

hey guys I've been thinking of starting a new project so i was looking for a forum that i might be able to get some help with it... this forum looks bit out of my leage but i didnt find any thing elce more low key lol... well my back ground is a mantance fitter and turner. and i have done a...

Homework Statement A casino slot machine costs C dollars per play. On each play, it generates random variable X ~ Poisson with parameter λ < 1, and pays the player X! (X factorial) dollars. As a function of the fixed parameters λ and C, how much money would you expect to win (or lose) per turn...

Say you had a spring with a magnet on top(stuck to the spring). And when the spring is pushed down, in which it will go back up, it will go near another magnet, pushing it down. Pushing it down makes it go back up. Would this work?

I am working out of Cutlands computability book and I am having trouble understanding the following example: "The function x+y is Turing-computable." Then the example lists the following specifications: q_1 1 B q_1 q_1 B R q_2 q_2 1 B q_3 q_2 B R q_2 I wanted to verify this worked...

I'm trying to design a automatic tennis ball pitching machine for my senior design project. I will be using two spinning wheels as the launching mechanism. So far I've found the initial velocity after the ball leaves the two spinning wheels (v = 33.398 ft/s). This velocity was found by using...

Hi. I'm trying to decipher the differences between the machine architecture and microarchitecture. I believe Machine Architecture is: The ISA (such as x86) Von Neumann Model for Computing? and I believe the Micro Architecture is: Specific implementation of some arbitrary ISA...

Double Atwood Machine: relation between the contraints & the variables ?! Hello. I am taking an analytical mechanics course & there's 2 "simple" equations relating the constraints to the variables. The problem is actually a class example. Here is it 1. The figure of the example is attached...

I have a machine I want to build, the principle works on the basis that products enter a cylindrical sieve 900mm long, 2mm thick and 400mm dia, in the center is a shaft of 50mm dia, 1600mm long with 900 rpm. The shaft has paddles at a angle of 45deg to act as a conveyor by agitating the product...

Electronics: Mealy State Machine Design I'm having trouble with designing the Mealy state machine below: Homework Statement A state machine is to have two inputs X and Y and an output Z. The output should stay at a constant value unless one of the input sequences occurs below: a)...

Homework Statement given the following diagram : http://www.freeimagehosting.net/uploads/… a)mention for every step if it is isothermal / adiabatic / else. does the system receive heat or emit heat. b)given this gas is ideal gas, sketch a diagram with respect to P and V c)calculate work done...

Hi guys... I am working at an Aerospace company... their hiring procedure is top-notch, coz` they hired me... a guy who has NO training and NO knowledge in the field (I also hate to fly!) So, the question is the following... we are building something that goes somewhere in a flying...

I think it's easy, but I don't get it. Given the machine language instruction 0x00221820. What MIPS assembly instruction does it represent? I know the solution. It's add $3, $1, $2 I just don't know how to get there. I know I have to convert the numbers into binary first. So you have...

1. A pulley with mass Mp and a radius Rp is attached to the ceiling, in a gravity field of 9.81 m/s^2 and rotates with no friction about its pivot. Mass M2 is larger than mass m1. The quantities Tn and g are magnitudes. A) T3 is ... T1 + T2 B) T1 is ... m1g. C) The C.M. of Mp+m1+M2 does not...

Homework Statement The two weights on the left have equal masses m and ar connected by a massless spring of force constant k. The weight on the right has mass 2m, and the pulley is massless and frictionless. The coordinate x is the extension of the spring from its equilibrium length; that...

Hello, First of all, I’m just an average Joe asking about an article I read concerning a scientist who believes he may be able to invent the first time machine. By what I gather, if he’s able to get financing and build it, he may be able to send messages to himself back in time – obviously not...

Homework Statement A 5.00-kg block (M) on a 30° incline is connected by a light string over a frictionless pulley to an unknown mass, m. The coefficient of kinetic friction between the block and the incline is 0.100. When the system is released from rest, mass m accelerates upward at 2.00...

Homework Statement An Atwood machine is constructed using two wheels (with the masses concentrated at the rims). The left wheel (m1) has a mass of 2.1 kg and radius 21.44 cm. The right wheel (m2) has a mass of 2.8 kg and radius 33.94 cm. The hanging mass on the left (m3) is 1.53 kg and on...

Hello..sorry if this has been covered elswhere... I am a complete noob. I'm trying to find out how to develope a robotic arm or similar machine to cut 3 dimensional objects. Are there software programs that would create mechanical solutions based on a set of known results needed?

So a friend of mine posted this picture on my facebook wall. I assume there is some kind of inside joke involved that I'm not on the inside of. Anyways, I can't see any reason why this setup is impossible.

:smile: Hello people, Time Machine will not be invented. We will never travel in time, not in future, not in past. Why? If time machine will be invented then why no one travel to us from the future and say "Hello"? They fear that harm the past? Then let they send us some device from...

I know this has been asked before, but it was never really clearly explained.. The problem is as follows: Homework Statement What is the acceleration of the system shown in the diagram if the kinetic coefficient of friction is 0.15? [diagram attached.. if not visible, it is an incline plane...

Can anyone help me...from Nielsen-Chuang "quantum computation and quantum information":how might we recognize that a process in nature computes a function not computable by a turing machine?

From Nielsen-Chuang:how might we recognize that a process in nature computes a function not computable by a turing machine?

Homework Statement The descending mass of the pulley system (atwood machine) is 60g and the ascending mass is 55g. Using DataStudio to measured the slope of the velocity over time (read by the spinning spokes of the pulley) the acceleration (constant) is experimentally given as 0.316m/s^2...

Homework Statement I have to make a scheme of a bit detector that detects the bit "1101" with a Mealy Machine. So I have made the following state diagram and state table(picture 1 and picture 2) http://img215.imageshack.us/g/picture1jf.png/" Now I don't know what happens in picture 3. How...

1.Homework Statement Two masses hang from a string running over a pulley. Such a device can be used to measure the acceleration of gravity; it is then called Atwood's machine. If the masses are nearly equal, then the a of the masses will be much smaller than g; than makes it convienient to...

Homework Statement It appears that the subscript is not working properly, please take m1 to means mass 1 and m2 to mean mass2 Atwood's machine consists of two masses connected by a string that passes over a pulley, as show in the figure. Consider the pulley to be massless and frictionless...

Homework Statement A pulley is massless and frictionless, 2kg, 3kg, and 6kg masses are suspended. The 2 and 3 kilogram masses are suspended on the left side of the pulley (the 2 kilogram mass on the bottom) and are connected by a cord of negligible mass that does not stretch(T1), the 6kg mass...

In the Atwood machine, what should M be, in terms of m1 and m2 so that it doesn't move? [PLAIN]http://img163.imageshack.us/img163/8288/atwood.jpg My work: It doesn't move, so I said T1=Mg (T1 is the tension in the rope attached to M), I believe the tension in the rope connecting m1 and m2 is...

Hello, Lately I've been trying to gain an understanding of processors/cpu's and the very lowest possible code you can engineer. I decided I would do a thought experiment where I would distill the computer down to the most basic level I could conceive, and decided that such a computer would...

Homework Statement A star-connected, 3-phase, 100kVA, 415V, 50Hz synchronous motor having a synchronous reactance of 1.2ohms and negligible resistance operates at its rated terminal voltage, rated current and per-phase field-induced emf of 228V. Determine the power factor. The excitation...

As a fun project, I'm trying to design a mechanical machine as simple and elegant as possible to "crease up" a round flat piece of dough around a meatball. Any suggestions how this could work? If you know a better place where I should ask for help, please tell me. P.S. You will notice that in...

The two block in an atwood machine have masses 2kg and 3kg. Find the work done by gravity during the fourth second after the system is released from rest.I have attached my attempt here..Kindly tell me where I went wrong. I am sure that I didnt go anywhere wrong in finding the acceleration and...

Hi guys, I would really appreciate some help with this problem(probably quite easy for anybody with Electrical Engineering experience). Thanks in advance Homework Statement A 415V, 50Hz, 3-phase supply is connected to a 3 phase load of 10kw with a power factor of 0.8 lagging. Find the...

As useful as an EEG machine would be for me, I can't afford to buy one but I'm going to build one in the near future. There is a lot of information on this site http://openeeg.sourceforge.net/doc/ and from what I've read so far, building an EEG machine is no simple matter. Not for the layman...

Can questions like the one given in the following pic be solved by taking the reference frame answhere in the middle of the string and not on the fixed pulley?(http://cnx.org/content/m14731/latest/pq8.gif) A somewhat similar method has been given in http://cnx.org/content/m14783/latest/"...

i am a mechanical engineer. but, i am not good in machine drawings. i can not understand the assembly drawings. i can not visualize the 2d drawings into 3d drawings. if anybody knows the perfect method to understand and read machine/assembly drawings then please inform me.

This is my first state machine that has an input large than one bit. The simulation tool says that I synthesize my output away. I think I understand why, but don't really know how to fix it. library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; -- entity trimoore is...

Hi Tell me some good books on machine design and heat transfer. What about Machine design by Norton?

I'm looking for as much computational power as possible for maybe 2-3 grand. This looks like a nice setup fit to the purpose, but I thought it would be good to ask and see what other people know or have been doing. (fyi I'm not really a hardware guy myself) Glad for any input!

Homework Statement Basically, an ideal Atwood machine is released from rest (m1 != m2) and I have to find out how high the mass, say m1, bounces after an absolutely inelastic collision with the floor (no energy is lost). Homework Equations Conservation of energy, Newtons equations...

Hi, I am industrial automation engineer,I am 52 years old and I am from Romania. I would love to talk with you about "ROTARY MACHINE WITH ECCENTRIC PISTON" ,I like to say:"rotary piston" I asked the name "Rotary Piston" but the Patent Office has given the name:"ROTARY MACHINE WITH ECCENTRIC...

I am trying to deploy my oceanic model currently runing on ubuntu linux and compiled with intel fortran on a cray sv1 machine with UNICOS operating system. It actually went quite well until i tried to read unformatted files. i am using the following code to export the data to the new machine...

Homework Statement what is the average power output of an engine lifts a 250kg mass a distance of 30.0m in 20.0s? Homework Equations Ek= (1/2)(m)(v^2) Ep=mgh Ew=fnet x distance Es= (1/2)kx^2 The Attempt at a Solution Ep+Ek=f x d (.5)(200)(3)^2 + (200)(9.81)(5)= fx5.00...

Homework Statement The goal is to solve for angular acceleration with the end variables being m1,m2,m3, R, r, g. M2 > M1. An atwood machine is a pulley with 2 masses, one on each side. Homework Equations Tnet = I * angular acceleration Fnet = ma The Attempt at a Solution I know...