Balance Definition and 490 Threads

What the heck? The minimum monthly payment for a credit card is the larger of $5 or 1/25 of the outstanding balance. If the balance is less than $5, then the entire balance is due. If you make only the minimum payment each month, how long will it take to pay off a balance of $200? Clearly...

i saw a hindi movie that had an end scene with a bus with a few passengers involved in a mishap and end up hanging out of a cliff. the hero tells everyone to move the frnt slowly ... which made sense - in the end there is an old couple at the back and the ladys frozen with fear. so he asks...

When people are balancing themselves on a surface where their feet do not provide a lot of balance (sidestepping a ledge of rope) they tend to wobble or swing their arms to maintain/regain balance. My question is, how does that work? When a person wobbles they move their hips outward and their...

Why is it easier to balance on a bicycle when you are cycling faster rather than slow? Does it have something to do with angular momentum? Thanks.

I brought an old analytical balance into my kid's elementary school for "Science Day", and I explained the difference in using a scale (measures weight) and the balance (measures mass). I told them that although objects on a scale will weigh different amounts depending on if they are weighed...

My daughter has been asked to balance this chemical equation by her 7th grade Nun. Can anyone tell me if it can be done and how? Thanks H2O2 - H2+H2O

if i have the equation for enthalpy of water overall enthalpy = enthalpy of formation + enthalpy of water 1800k - enthalpy of water at 298k what is the value of enthalpy of formation is it enthalpy of formation of water as gas or liquid? enthaply at 1800k would that be enthalpy of...

<a href="http://www.flickr.com/photos/just-karl/2407404197/" title="IMG_8600 by Karl W., on Flickr"><img src="http://farm3.static.flickr.com/2206/2407404197_18ab7a3497.jpg" width="500" height="317" alt="IMG_8600" /></a> I have to find at what the angle of the string is using the torque...

ok so i am completely lost on all this force stuff...help...please An object is hung from a spring balance attached to the ceiling of an elevator cab. The balance reads 65 N when the elevator is standing still. (a) What is the reading when the elevator is moving upward with a constant...

Homework Statement 24. A person tries to balance vertically each of three long uniform cylinders with equal radii on the end of his finger: * A wood cylinder of mass m and length L with moment of inertia I * A bamboo cylinder of mass m and length 3L with moment of inertia 9I...

Alright guys here it is: My teacher asked us to think about a bonus question. He wants us to use torque to find the mass of the sliding mass on the center beam balance (the one that moves through 0,100,200...ect.) How do i do this?!

Homework Statement A tank used to prepare 10% salt solution was shut down for the day. The next day, you were told that the effluent concentration should be 5 wt %. The tank volume is 1000 m^3, and it is completely filled with 10% solution. You decide to run pure water and remove the...

Mass Balance Question - Please HELP! Homework Statement A tank used to prepare 10% salt solution was shut down for the day. The next day, you were told that the effluent concentration should be 5 wt %. The tank volume is 1000 m^3, and it is completely filled with 10% solution. You decide to...

Hi, Could anyone please help me with this question: A man with mass of 80 kg wants to balance a 40 kg boy who is standing at the end of the board. If the board is uniform and has a mass of 20 kg how far from the middle in meters, x, must the man stand so that he and the boy balance each...

Is this possible? http://bp1.blogger.com/_cxmptAPYR-s/RdeCowgR2iI/AAAAAAAAARk/cqmc7VWv60M/s1600-h/hammerrulerpuzzle_1.jpg

As some of you may know from my previous post, I'm trying to transfer from a bottom-tier school to something more challenging next fall. After some time with my advisor, I've been left with a somewhat difficult decision. My dream program is EE at UIUC. However, out of state tuition runs...

hi all! is there anybody who can help me with shell balance? one of my main questions is wat are the main assumptions wen we apply shell balance... moreover.. can anybody suggest a gud book or site/tutorial wer i can get a hang of shell balance properly? thank you!

if anybody can help, the problem is finding out the amount of time it takes to drain a 12oz soda can through the shotgun method. this method of draining involves opening the tab on top of the can and then punching a hole at the bottom to drain the soda out.the velocity out obviously changes as...

Homework Statement A 43kg sign hangs by a thin wire slightly off center on a 2.2m long, thin rod. Each end of the rod is supported by a thin wire. the mass of the rod is 18.3kg 1. Determine the tension in each of the 2 wires that support the rod. 2. How far off-center is the wire...

Homework Statement Find the readings on each of the balances in these 4 situations (strings are massless and incline is frictionless): (sorry about the photo - don't know how to fix it) Homework Equations F=ma, W=mg The Attempt at a Solution 1) Seems easy enough. I am...

Hello everyone! So I'm working on constructing a simple mass balance for a cake. I didn't have any problems doing that, but I was asked about waste that is generated in the process of making the cake. Is there really a waste generated in this kind of process? I've also been asked to...

Why does the amount of antimatter equal the amount of matter in the universe. If they go in pairs and are opposites one must exist for the other to exist. Why is matter more abundant in our universe and what has happened to the antimatter?

Homework Statement Define a dimensionless radial coordinate as x\,=\,r\,\sqrt{\frac{2\,h}{b\,k}} and introduce y\,=\,T\,-\,T_a, and thus show the elementary equation x^2\,\frac{d^2y}{dx}\,+\,x\,\frac{dy}{dx}\,-\,x^2\,y\,=\,0 describes the physical situation. It gives the "physical...

I want to derive equation of continuity in spherical coordiantes based on shell balance,can anybody tell me where the hell this sin(theta) comes from? i don't want to transform from cartesian,

Homework Statement 1. Motor/generator. In the bar and rail problem shown in Figure 1, the bar moves at a constant velocity of 6 m/s to the right. There is uniform magnetic field of 0.75 T oriented downward, as shown, in the space between the rails. The mass of the bar is 500 g, and the...

Homework Statement In the figure (see attatched), an electron accelerated from rest through potential difference 2.0 kV enters the gap between two parallel plates having separation 20.0 mm and potential difference 130 V. The lower plate is at the lower potential. Neglect fringing and assume...

Homework Statement There are two current carrying wires carrying the same current but in opposite directions. One wire is rigidly fixed whereas the other is part of a frame that can rotate about a horizontal axis. When current begins to flow in the two wires, they repel each other. The upper...

Can somebody explain how do you write a Mass Balance or Charge balance for a acid-base equilibrium? Let say, if you are given 0.01M Zn(OH)2 in a saturated NaOH solution and also given that Zn(OH)2 + 2OH- -> Zn(OH)4(2-) how would you solve the mass balance/charge balance? I really have no idea...

Fluid Mechanics: Flow Between Parallel Plates--Force Balance Equation Homework Statement http://antishift.org/image.php?id=16807&size=full Homework Equations I know the equation for shear, tau=viscosity*velocity gradient. and pressure is obviously force/area. The Attempt at a Solution I...

Hi. I saw this video on google: http://video.google.com/videoplay?docid=6377655322209610872 It's mainly a pendulum attached to a balance arm. It's stated that the energy needed to keep the pendulum going is far less than the energy we can extract from the balance movement. I also...

I have this problem as a homework question for my MEB/Thermodynamics class and have been having some trouble with it. A 10.0 m^3 tank contains steam at 275°C and 15.0 bar. The tank and its contents are cooled until the pressure drops to 1.2 bar. Some of the steam condenses in the process...

Homework Statement a uniform 12.0m long board has mass 500kg. it rest 5.5m over a cliff. How far can a 80kg man walk on the board before it tips? Homework Equations equilibrium and torque The Attempt at a Solution im not quite sure about any portion of my work, because i resorted to...

Fairly simple question, I just couldn't think of a suitable explanation for it. In white dwarfs, neutron stars etc gravity is balanced by high outward pressure of fermions, which are in a confined space, so have v. high velocities. My question is, if you placed a heavy weight on an ordinary...

so... I'm a woman, I study physics, I love science and I get freakishly excited at the prospect of doing research. I am seriously considering it as a career. But then, I look around and damn, the vast majority of my professors are male. They work a lot, do exciting research, and most manage to...

Homework Statement Aqueous solutions of barium chloride and sodium fluoride are mixed to form a precipitate of barium fluoride. Homework Equations i'm not sure but i put. BaCl + NaF = BaF2 + NaCl2 The Attempt at a Solution I'm pretty much confused whether you balance the...

Hello, I need help for the following question: Peter borrowed $100,000 from bank and he pays back at a rate of $12,000 per year. The bank charges him interest at a rate of 7.25% per year compounded continuously. Make a continuous model of his situation using differential equation involving...

Spring Balance in Space(no calculations) Using a spring balance in space to measure the weight of anything is useless. Is there any way to use a spring balance to compare the weight of two people in space?

Hi, A body weighs 8gm when placed in one pan and 18gm when placed on the other pan of a false balkance. If the beam is horizontal when both the pans are empty, then what is the true weight of the body? How do I do this? Please help.

Given the equation Q* = QH + QE + QG and the corresponding data (all fluxes in [W/m²]). How can I find the equivalent loss of stored soil liquid water expressed in [mm] (Note: the conversion factor is the density of liquid water, i.e. 1000 kg/m^3) Thanks very much for your help!:confused:

If I'm finding the slope of the line of average balance mass(g) vs. total mass (g), should the units for slope be grams? or does it not have units? I know it should be g/g but would that cancel out or stay grams? Sorry if that's confusing. Thanks.

perceptual balance and "sea legs" I'm sure everyone has experienced this. After coming off a boat trip of several days, I feel like the soild ground under me is swaying as if I'm still on waves. This can last for days. What I wish to understand is what in the brain is causing this perception...

Ok, here is another one I have, this is one of a series of half-cell questions... this one is confusing. 79. Balance the following equations by the half-cell method. Show both half-cell reactions and identify them as oxidation or reduction. b) Cl2(g) + OH- <=> Cl- + ClO3^- + H2O(l)...

Hello to all, I have one question and hope you'll help me to answer it. Recently I have visited one power plant. There I learned basics of el. energy production and also fact that in every moment production = consumption because el. energy cannot be conserved. I also learn that by allowing...

I read in “N. David Mermin, It’s about time, (Princeton University Press, 2005) p.144: ”Furthermore, even when you put together identical bricks, it turns out (in the relativistic case) that the mass of the object you construct depends on how you put the bricks together.” In order to test the...

Hi ppl. Why is it, the "centre of mass" determines how good the balance of an object is ? I’ve tried this experimentally, on when I place the centre of mass below the object, its nearly impossible to push over, Or well... It IS IMPOSSIBLE! Could someone please tell me which equations tells...

I think it is true to say that every thing in the universe must ballance in some way, apart from matter over comming anti matter, by some un explained process, so if the universe can be explained by some metric, is there an anti metric ?

When can I say that the system is in equilibrium? How can I estimate how quickly it takes to the system to reach equilibrium? Thanks.

I've been trying to wrap my mind around how a balance works, and I come up with a question I need help with... If you have a traditional balance scale, and you put perfectly equal weights on both sides, of course the scale balances the two out, and the two objects being weighed end-up at equal...

Here is the problem. 50g of liquid is heated by 30 degrees in a calorimeter in 530 seconds. The power is 10W. 100g is heated by the same amount in the same time with a power input of 16.1W. What is the s.h.c (Cs)of the liquid. I know that: Cs = (1/mass) x (dH/dt for liquid) + (dH/dt for...

A 70kg adult sits at one end of a 10m board, on other end sits a 30kg child. where should pivot point be placed so board is balanced? board's mass is 15kg. so far, i have pivot point is 15kg(9.8)=147N (5) <-- half the board length.. for adult i have 686N and kid is 294N. i know that...