Machine Definition and 918 Threads

A peculiar Atwood’s machine The Atwood’s machine shown in the figure consists of masses m,m/2,m/4,...,m/(2^(N-1)). All the pulleys and springs are mass less, as usual a) Put a mass m/(2^(N-1)) at the free end of the bottom spring. What are the acceleration s of all the masses b) Remove...

So here is the problem with the two parts and then the teacher's clue... I would be majorly appreciative if you could help me out. Two packing crates of masses m1 = 10.0 kg and m2 = 4.00 kg are connected by a light string that passes over a frictionless pulley as in Figure P4.26. The 4.00 kg...

I have to make a compound machine that has an input force of 2N and an output force of 8N-10N. So far this is what I've got. Its a wheel and axle connected to a block and tackle. [PLAIN]img130.imageshack.us/img130/4974/physicsbo6.png[/URL] How much bigger will I have to make the wheel...

I just started to work on a co-workers computer, they had no anti virus, no firewall, no startup manager, and no spyware programs. To say the least it is loaded with a lot of nasties, one of my problems is that when I try to get rid of the spyware, bad registry keys, etc, it freezes up the...

I could really use some help on this one, it's really driving me mad. A few days ago my computer started to shut down and restart anytime I would try to leave the room, I even crawled out of my chair, crawled across the floor through the door, but to no avail, it realized I was leaving it, and...

Homework Statement Could I please have a tutor check my answer and solution? question: An effort of 3 kN is required to move a mass of 2000 kg in a certain simple machine. If the mass is raised 1.5 meters while the effort moves 12 meters, find the efficiency? [b]2...

Great, i get home from work and find my fairly expensive dell precision machine, which i use as a web server, in some state. All three fans spinning very loudly at full power like a jet engine and the computer completely dead. When i restart the computer no characters are printed, the monitor...

Homework Statement The ball launcher in a pinball machine has a spring that has a force constant of 1.2 N/cm. The surface on which the ball moves is inclined at 10° with respect to the horizontal. If the spring is initially compressed 5 cm, find the launching speed of a .1 kg ball when the...

Last week my physics teacher, Nate Sloan, told us that we would be having a project during the quarter. He gave us the options of building a miniature roller coaster, or building a rube goldberg machine. We chose the rube goldberg machine, and I was wondering if anyone had any good...

anyone know how to do this? i have 0 experience installing stuff on linux, I'm pretty new to it. i know the one word "un-tarring" and that's about the limit of my capabilities it'll be wildfire3 version of proe on debian distro thanks for any and all help

There is an Atwood's machine. The masses of blocks A and B are m_A and m_B, respectively, the moment of inertia of the wheel about its axis is I, and the radius of the semicircle in which the string moves is R. Known: m_A > m_B a)Find the magnitude of the linear acceleration of the block...

Can we ever create a time machine?:!)

http://www.turnertoys.com/G1/MM2202bat144.jpg "The Wright Bat Vertical Flying Machine Wilbur and Orville Wright (you've heard of them) played with a wooden version of this toy in 1878. Their father, Bishop Milton Wright, bought it for them as a gift. Wind the rotor and let go - it flies up...

Hi, I am doing a small project on the "construction and control of a modern tensile testing machine" and am a bit unsure as to where to start on this! Does anyone have any ideas as to where I could find information on this subject, or know anything that might be helpful? Thanks, Chris

How can one readily determine that the reality one experiences is real, not virtual - perhaps through Turing machine logic?

I was working on my physics homework and I came across a question that I couldn't find an example of in my notes. I'm not sure which formulas I need to use and in which order to use them. Here's the question: Two objects with masses of 3.00 kg and 5.00 kg are connected by a light...

With an Atwood Machine, I understand that the formula for calculating T can be calculated with two simultaneous equations. T-m1g=m1a a= (m2 - m1 ( T – m1

Why the mechanical advantage of a simple machine has no units? M.A=Load/Effort. thank you.

i tried searching for it on google but couldn't get the right term. Do you guys know of any research going on trying to transfer knowledge directly into brain like chip?

Good day! Guys pls help me...here is the problem... Kefer and Kaye Ace are parked from the edge of a cliff in a sports car whose mass, including that of the occupants, is 1000.0 kg. A jealous suitor ties a rope to the car's bumper and a 50.0 kg rock at the end of the rope. He then lowers...

A loop-the-loop machine has radius R of 18m. a)What is the minimum speed at which a cart must travel so that it will safely loop the loop? I am unsure which formula to use as I know it has something to do with KE and GPE. I was thinking it might be : v = square root...

If we have function machine, which change numbers 1,2,4 and 7 like this 1 --> 4 2 --> 8 4 --> 16 7 --> 28 How i know simple, what is function, what machine use? :frown: ( I don't speak very well english )

Here's a nice little crackpot ad from a magazine. I removed all of the contact information so it doesn't break the advertising rules on here. This is just for humor value. http://home.comcast.net/~iberiaforums/pfadvert.jpg

What I would do is create a cloning machine but sell it as a transporting machine. Do you get it? Not yet? Lemme explain it. You wake up, you go to school by transporting you, what is actually happening is it kills you and clone you to the school, you return form the school the same way. So...

THEN Older machines cane be automated by using plc's How to Manufacture the PLC? for this Email to bhosalerajendrad@yahoo.com

What Kind Of Machine Converts Chemical Energy To Electrical Energy? A)dynomite Explosion B)batteries Or Fuel Cells C)steam Turbine D)hydrogen Bomb Explosion E)tail Of A Firefly

I'm currently in the process of redesigning the solenoids for a tattoo machine company. I was wondering if anybody was aware of a formula to find the amount of force that the solenoid would draw the armature. I can figure out just about every variable that I think I'd need: flux density, air gap...

I have found that the bread and butter argument is flawed (a slice of bread and butter all ways falls butter side down), my experiments prove that the butter side is all ways more attracted by gravity, in order to improve this quality i found that spreading the opposite face with bbq sauce...

Any ideas for a good Rube Goldberg Machine anyone?

It is so surprising that athe Wimshurst machine can generate up tp 1,000,000 voltage with the size of 50 cm! As I know, in order to generate such a high voltage on its 2 terminals, there must be a very large quantity of charges being "collected and stored" in the Leyden Jars. Am I right...

I used PEsp = KE, which I got 16 = (0.5)(0.1)(v^2), and got 17.89, for my linear speed, and got that wrong. I know that once I get my linear speed, I plug that into an equation to get angular speed, but I would like to know how to get this linear speed correct. Thanks!

This was a bonus problem that I missed on the last homework. A paper tape Turing machine (PTM) is a Turing machine whose tape alphabet is partially ordered, and if a is a symbol on a square of the tape, then b can only be written on that square if b is greater than a in the partial order...

please i want to comapnies' sites for buying three layer blown fim coextrusion line that ia able to produce films with widths about 9m

Hello, I'm a little confused about synchronous machines. Specifically, I don't understand how the armature coils are wound. In discussing how the windings are configured in a three-phase synchronous machine, my textbook provides several diagrams which suggest that the windings of a coil go...

Why is it not possible to construct a finite state machine that recognizes precisely those sequences in the language A = {0^i 1^j |i,j Element Z^+, i>j} where the alphabet for A is {0,1}.. I just don't get it why this is not possible.. Is it because 0 can be infinite.. ?

Im having trouble explaining this relationship...from my graph i know that if armature voltage is held constant then the field current will decrease exponentially for increasing speed. But why?

Hi, i would be very grateful for some help... I have recently conducted an experiment and but I am not sure how to compare the values i measured with 'predicted' results (from theoretical equations). This is for the 'open circuit characteristic of a dc generator'. I set values for the...

In this page you can play against a machine in IQ test-like games. Very funny. www.theiqchallenge.com

The weights are attached to the main wheel by ratchets that only turn anticlockwise. The green thing is a slope that the red wheels roll down. It's a variation on another 'perpetual motion machine' that I saw a while ago, but I can't see what's wrong with it! It's driving me mad...

Okay, I'm having trouble understanding a finite state machine example in my book. It's a state table for the machine M = (S, \ell , \wp , v , \omega ) where S = {S0, S1, S2}, \ell = \omega = {0,1}. Please check out the attachment:smile: What i don't understand is the v and \omega...

I'm wanting to have two monitors run from the same machine, mostly because I hate having to move from my couch to my desk, back and forth. And when I do, i have to unplug the monitor I have at my couch, and replug the monitor at my desk. Are there adapters such as screen spliters, maybe? I don't...

Hey Guys, For my physics class I have to build a Rube-Goldberg machine. I'm really stuck in making the machine and was wondering if anyone could help me. I don't know where this post is suppossed to go, so I figured it would be most appropriate in the Engineering topics. Thanks a lot Guys

im stuck on the last question of this lab. "what combination or masses would make the accelration of an atwood machine equal to 1/2 g?" a = g (m1 - m2/m1=m2) so i have to find out what m1 and m2 are eual to in that forumula if g = 1/2 im thinking a is equal to 9.81 because the...

hey guys, i need your help! how can i design and build a machine that lifts and transports a load?

What is it you have to do if you want to be able to ssh to your machine from anywhere? I know what it takes if you're connecting to one that's on the same network. And I'm not talking just ssh, I also mean telnet, ftp, etc...Kind of a noob question.

I'm not currently taking physics but I am curious as to the physics of a certain machine. You may or many not have seen it before, mostly in bars or clubs, there are punching bag machines. The best diagram i could draw is following...

People in coffee shops are incompetent. Really. I don't think they understand that some people( granted not their typical panzy customers) actually like the taste of espresso. Two times in a row I've gotten a double cappuccino at the campus coffee shop that was really a latte. The ONLY...

If man were machine ... What OS would you be? Take thetest

I'm modelling an induction machine used as a fast-response drive that provides on-demand additional power to a manually operated lever. My problem is I have no fixed operating point, the motor operates at high speeds but only for a maximum of 10 seconds at a time. I'm also modelling this out of...

Hi Guys! well ! i have one question to you? Why transformer is called a machine. It has got no rotor in it. Then what is the reason that we put transformer in the category of machines. Thanks in advance!