Load Definition and 1000 Threads

Homework Statement Ok, i have a small (optional) project, to design a load bearing structure made of matchsticks. The structure must be able to withstand the load a computer monitor (i have a 17" one). Homework Equations Now, the problem i am facing is how would the force (of gravity due to...

Problem: One (1.00) mole of an ideal diatomic gas (with = 1.40) initially at 20.6°C and 1.00 atm pressure is taken around the following cycle: Path (1): an isochoric increase in pressure until the temperature of the gas is 159°C and the pressure is P; Path (2): an adiabatic expansion until...

I'm trying to find out how to see if my brakes will lock up or my tires will continue to roll through the following scenario. I have a machine that weighs 42,000 lbs. I'm pulling a 110,00 lbs trailer with load (no brakes on the trailer). This is a rubber tired machine going down a 8 degree...

Hello All, glad to be a part of this elite community, i have been following the forum threads for quite few days now, i am really interested to hear from Mr.Berkeman. here is my problem: we are facing a problem at the rectified output of our power supply, we have used a bridge rectifier to...

Hey, I'm kinda stuck in this odd question. I've tried searching on the Internet but haven't found much help. Basically, I have a voltage divider biased transistor. I can solve and find its Q-point without an external load, but I'm kinda confused how the circuit will change when there is an...

Can anyone help to determine the maximum load on 3.5 " x 3.5 " x 3\16 " square tubing with a 1 " adjustable pin hole. This tubing was inside a 4 " x 4 " support . See the attached picture. I need to know the load or force allowable on the 1 " pin prior to the 3.5 " x 3.5 " tearing from the...

can someone give me the defination of compressive load so i can work out a question which involves solid brick pier having :... ...325mm square section, and 2.4m height, subjected to an axial load of 400kN LF

Homework Statement The well-known civil engineering firm of Rivers, Rhodes, and Waters is designing a walkway that is to be suspended by means of four steel rods of diameter 2.0 cm and length 2.80 m. The stretch of the rods is not to exceed 0.46 cm under any circumstances. What is the...

For a light 5m beam carrying a central point load of 20 kN, calculate: a) the maximum shear force (iv got that) b) " " bending moment im stuck on the bending moment, i can't remember how to work it out.

Dear all, i am possible to do experiment on the application of solar cell and i have run into several problems so i need to seek advice from all the experts in here. I have several DC loads include: 1 x Cooler fan (12V, 0.25A) 1 x cooler fan (12V, 0.2A) 2 x rechargable AA size battery...

But here's the catch http://www.pbs.org/newshour/bb/business/jan-june08/dollarsworth_03-04.html streaming video optional So, where will the long-term balance of trade leave the US standard of living?

I am looking to make an automated feeder system using hoppers. The first design used 50lb single ended load cells. However, a side load was accidently applied to the system and the load cell was rendered inoperable. i am not worried about the accuracy of the system when a side load is applied, i...

like if I was to say "this beam can take this much load" does that mean if you put any more load on it, it will crack? Sorry if this is a confusing question, help my understanding if you can.

Help with a problem: A spherical, hydrogen-filled balloon has a radius of 12 m. The mass of the balloon plastic and support cables is 196 kg. What is the mass of the maximum load the balloon can carry? (Density of hydrogen = 0.09 kg/m^3; density of air = 1.25 kg/m^3) I do not know...

Why should a series motor always start with a load? Why should a shunt motor always start without a load?

Hello everybody... I have spartan 3-1000 FPGA and I want to show some graphs to CRT monitor using VGA. I Know how to show the graphs from the SRAM and give them into the VGA. the question is How to load these data into the SRAM?? --can anyone help me

Does anyone has some literature or any idea about this topic?More precisely i would like to know about the local and global effects due to neative and positive curvature.Thanks!

HI all, I am interested in designing a tapered bearing. Can anyone please let me know the parameters to be considered in order to design. I have been given a load acting on the sleeve, and the arae available to fit the bearing. If any useful site which talks about bearing and its...

Hi, Please help me in solving this problem. I need to calculate the dia of the Allen screw. I have an assembly (2 parts). Hydraulic fluid is passing thru the drilled hole. I need to calculate the dia of the Allen screw (for fastening 2 plates). The load is acting parallel to the fluids...

How would I go abou finding an operating of of an NMOS? I have no idea, except that I was told I need to use something with load line. Can someone help me?

Alright, so this is a crude drawing of my current system set-up: http://img233.imageshack.us/img233/3570/loadtx3.png So what I want is a "multiplication" effect, like a 2 inch movement on the "A" side will cause a 4 inch movement on the load side. So what should I put in the red...

How can I set a non uniform load (for example sin(x)) in on a cylinder ring?

What happens if I'm changing load capacitance of oscillator from 15pF to 30pF.

I am working on a distributive load problem involving two different functions on a graph that join together at a common point (one is half of a parabola, the other is a general y=mx+b line) To find Fr, I know that I integrate each equation independently with respect to the variable (in this...

[SOLVED] Calculate Load Resistance Homework Statement Find RL if PL is 90W. Homework Equations PL= ((V^2)*(RL))/((RL+r)^2) The Attempt at a Solution I calculated the internal resistance to be 5 Ohms on my circuit with a supply voltage of 100V So, 90W = ((100^2) * (RL))/((RL +...

Hi everyone, I am remodeling a recently bought home. One of the upstairs rooms is a game room and I plan on putting a pool table (1000 lbs) in it. The original floor joists were 2x6 16" OC - I glued and nailed another joist on to existing joist - so now it is 4x6 16" OC. If I would add...

Homework Statement A rod is being used as a lever as shown. The fulcrum is 1.2 m from the load and 2.4 m from the applied force. If the load has a mass of 11.6 kg, what force must be applied to lift the load? ____ N Homework Equations ? The Attempt at a Solution When doing...

I am just trying to get my head around what a load factor is an indication of. It seems that a load factor of 35% or more shows more kwh for your dollar on the end user side of things. But can a more close examination be made in saying "The load factor was 35% in April, and 22% in June...

Distance traveled by an accelerating truck with a steel load. With a twist! Homework Statement Consider a large truck carrying a heavy load such as steel beams. A significant hazard for the driver is that the load may slide forward crushing the cab, if the truck stops suddenly in an...

Homework Statement how much work is needed to raise a 200-kg load of bricks 10m above the ground to a building under construction? Homework Equations The Attempt at a Solution

Homework Statement A load of bricks with mass m_1 = 14.0 kg hangs from one end of a rope that passes over a small, frictionless pulley. A counterweight of mass m_2 = 28.4 kg is suspended from the other end of the rope, as shown in the figure. The system is released from rest. What is the...

I have a question regarding a load cell application I am working on. I am designing a loss in weight feeder system and would like to use a single load cell for my hopper weight. Upon preliminary trials, I mounted the load cell on one side of the hopper and hinged the other. This does not give me...

Please help me figure out how to solve the attached problem. I understand the equilibrium equations for 2 chains (http://www.glenbrook.k12.il.us/gbssci/phys/class/vectors/u3l3c.html ) but not for the third chain attached to the load. Thanks- Lith

Please help me figure out how to solve the problem I attached. Thanks for any and all help- Lith

how to maintain constant Power in varying load Hi, I'm having some questions about the way I could achieve to maintain the power in a resistor constant. My problem, is that the resistor is quite small (less than 100ohm at room temperature). When running, the resistor, a heating resistor...

what size of I-BEAM that i will use to carry a load of 2270Kg?

If I take a piece of 1/8" aluminum sheet that is 36" x 120" and bend each long side up 3" to create a ramp 120" long x 30" wide, How much weight would it support. My tenant has a power scooter and can't afford to purchase a ramp so I am looking for alternatives.

Homework Statement All components arranged parallel, voltage source =10sqrt(2)cos(2000t) 10 ohm resistor, 10mH inductor, 15 microF How much energy is exchanged between the source and the load? (book answer: 0.0962J) Between the capacitor and the inductor? (0.144J) But I think the book...

Hi, My friend and I are doing a physics project that analyzes movie physics and we have a quick question. In Home Alone 2, the kid ties a doorknob to a tool chest on wheels that is a floor up. The bad guys pull on the doorknob and the tool chest starts falling down the stairs. How would we...

If I want to find out the current drawn by a power supply when no load is placed on it. It isn't obvious what this is in the datasheet, but under Safety, Regulartory, and EMI regulations, it does mention a leakage current on the order of microamps. Would that be it, or does that refer to...

Hello, I am doing research on the Spanwise load distribution due to change in wing twist! and also: the Spanwise load distribution due to change aileron deflection... Any one working on similar stuff? Thanks ;)

Hello, I must first say that I think this is an excellent forum, I have found some usefull info in the past.(thanks) The question I have today is about loadcells, I am working in my companys R&D department I am trying to set up a pair of load cells to measure tension. The load cells I am...

Do you know if there is a formula for the maximum load that can be supported by a beam? The beam could be a simply supported beam, cantilevered, or fixed on both ends. By the way, is finding the equations for share and bending moment diagrams an undetermined problem?

Hi, can someone tell me how the ECU calculates the engine load (this value isn't measured directly). All I found about engine load is that this is the value that tells us how much load an engine is overcoming in the dependence of how much load it could overcome at the momentarly...

Why current lag behind voltage in inductive load? and why current lead voltage in capactive load?

This is the problem I have with the question with a beam with mass. Homework Statement A 2.90 -m-long, 390 kg steel beam extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 71.0 kg construction worker stands at the far end of...

What is "rated load"? What is "rated load" and what is its relationship to rated voltage and current? Part of the question: "Assume the transformer is supplying rated load at 480 V and 0.8 PF lagging. What is the transformer's input voltage?" I'm not asking for help with actually...

Hi there, I am new member to this forum. I am taking online courses, in order to get my degree. For all of the problems, the transmission line in the problem has a characteristic impedance of 50 ohms and is one quarter wavelength (an electrical length of 90 degrees) at the frequency of the...

I've attached a picture of the problem - I'm NOT looking for a solution, just an explanation. You can see the dimensions x,y, and z. That box is a detail of the connection at the rod interface. There is a distributed load acting across the lower beam of w lb/ft. Given the allowable...

Intuitively, if we have a beam nailed down to a box of some sort on one side and have the other side of the beam stick out (with an object on it), we would expect the beam to bend to an extent. However, when I tried to apply the knowledge of physics that I have, I had a bit of trouble explaining...