Effects Definition and 1000 Threads

How are you predicting the effects of emergency shut-down scenarios on your pipeline networks? I'm seeking some input on the tools you use to predict mechanical effects (hammering, etc.) from critical scenarios such as emergency shut-down.

Time Dilation- slowing or speeding up time. Acceleration Time Dilation as an object travels faster time will slow down. If an object were traveling 10,000 mph for a few days the time dialtion would be in nanoseconds, but if an object were traveling the speed of light time would "stop". The time...

Hi guys, I have chosen the variation of magnetic field strength under different temperatures for my high school physics experimental investigation. We had a guassmeter at school, however it has had a few problems, and so I've dicided to use a compass. My question is, how do i use the angle of my...

(Note: I am posting this in the classical physics section because it has a connection with Thermodynamics, also this is NOT a homework question, I am just trying to get a handle on what is going on) I was looking through some old questions I had written down and decided I would ask to see if...

I wonder where I work, 3-phase ind. motor with 80 ohms resistance per phase from the manufacturer was re winded and the new resistance per phase was 89 / 90 / 94 Ohms in the 3 phases. when the motor was put back, it burnt within few hour, why was this?

im doing this eperiment on rollercoasters and i was wondering if loop radius effects the vehicle; like if the loop was to small will it make it through? or if the loop was to big will it make it or just simply fall off? :) THANKYOU

I need help. In my work place (we mainly treat copper contaminated water), our downstream are pointing the chlorine content of our water for the cause of their copper concentration going up after the waste has gone through their chelate towers. This chlorine content shows no visible indication...

I am having a lot of trouble conceptually understanding the idea of a random effect in ANOVA testing - more specifically identifying whether a factor is random or fixed Thanks, Thrillhouse86

Hello All, I am trying to do some research to see how many known magnetic effects (related specifically to conductors) have been discovered. So far, I know of the most common one, The Lorentz Force, which is due to the effect of an electromagnetic wave moving across a wire. I am specifically...

Homework Statement a long straight wire carries a current of 2A. an electron travels with a speed of 4*10^4 m/s parallel to the wire at a distance of 0.1 metre from it. what force does the magnetic field exert on the moving electron Homework Equations what formula should i use? is it f=...

What is self and air broadening effects? I have read that they appear in atmospheric modelling. Is this pressure broadening?

for example, ethanoic acid in water, "="means equilibrium arrows CH3COOH(aq) + H2O(l) = CH3COO-(aq) + H3O(aq) we take the pH as the -log of the concentration of H3O ions. BUT why do we not take in account the effect of the ethanoate ion with water which produces OH-? CH3COO-(aq) +...

i was testing my pic microcontroller (16F88) but i forgot about the maximum voltage and applied 7volts to it. The microcontroller did not give me the expected result.To me it looks like it does not work but when i connect it to the programmer i am able to reprogram and even read from its flash...

I would like to hear some thoughts about the quantum effects that seem to be an important part of the photosynthesis (http://www.lbl.gov/Science-Articles/Archive/PBD-quantum-secrets.html" ). According to the scientists who made this discovery it seems that the photon tests all possible paths...

Hello everyone, i had one doubt in my mind regarding Rotary oil pump. The Question is what would happen if we remove oil from the Rotary oil pump. What would be its effects? Please Reply Regards Gagan Sharma :confused:

Homework Statement A car starts at 100 m/s and deploys a parachute. After 10 seconds its speed decreases to 45.45 m/s. Calculate the distance the car has traveled in this duration. The effects of ground resistance are ignored. drag coefficient and planform area product (Cd * A) = 4 m^2...

I understand that the purpose of the TestAndSet() instruction is to test and contents of the register and set new values. (returning the old value). I have a question regarding this instruction: function TestAndSet(boolean lock) { boolean initial = lock lock = true return...

If the blood pressure jumps from a long term pre-hypertension stage (140/90) to 175/110 for ten hours, and then calms down to pre-hypertension stage again, are there any long term effects on the body for sustaining such high blood pressure? From what I've been able to find out, high blood...

Hello, I have a question about how non-magnetic impurities affect the transition temperature in type II superconductors. I know that the impurities introduce additional scattering and therefore act to reduce Tc, but is there a simple formula that would relate the effect on Tc due to...

I was wondering, are there significant effects on the performance of a solenoid when the solenoid is inside an external magnetic field? Does it affect the rate at which the magnetic field is established within the solenoid?

If the moon is expanding its orbit at a rate of one inch per year, that would mean that 65,000,000 years ago it would have been roughly 1,000 miles closer to the earth. Does anyone know of a study that considers how the moon proximety to the Earth at this time may have effected the environment...

Homework Statement Circuit -------------------------------------------------------------------------------- In the circuit shown, the AC voltage source supplies an rms voltage of 147 V at frequency f. The circuit has R = 109 Ω, XL = 212 Ω, and XC = 106 Ω...

What are the effects of Spacetime "Drag"? I have learned that general relativity predicts that a rotating body (such as earth) produces not only a curve in the spacetime continuum, but it also 'drags' spacetime in the direction of rotation. 1) How is this possible? 2) What effects does...

Textbook: "Chemistry" by Silberberg. 5th Edition. Page 306 "Electrostatic effects play a major role in determining the energy states of many-electron atoms." Can someone help me understand this statement? "Electrostatic effects" is not in the textbook glossary, and I'm not having luck...

This is more of a confirmation that I got the facts right: Reading around, I found out that the solar wind travels from the Sun to the Earth at a mean speed of 400km/s. Does this mean that it takes around 4 days for a burst of solar wind to cause disturbances in the Earth's magnetic field...

I have always been confused by SR and GR in terms of what each observer observes of their own frame of reference. e.g. Does an observer moving at a high v/c measure length contraction in their onw F of R? I assume not since all apparatus would be similarly contracted. Nor do they measure...

A parallel plate capacitor of capacitance 10microfarads has the space between filled with material with (dielectric constant k)= 4.0. The capacitor is charged to a potential difference of 2.0V . With the capacitor connected to the battery the dielectric is removed. 1. The capacitance is F...

hi, i have been doing research on the effects of gravity on a pendulum but i still can't seem to find the relationship between the two. what i got so far is that gravity won't stop the pendulum but air resistance and friction would do the job and that gravity will only affect its...

if the motor is already running at a voltage of 410V what would the effects be of reducing the voltage?

Can man-made EM waves produce physical vibrations of objects? Can man-made EM waves vibrate powders like sand or talc? I'm trying to understand if any types of electronic frequencies can cause physical vibrations...thanks.

Large tropical storms can have dramatic effects on coastal, estuarine, and terrestrial ecosystems. The combination of high winds and intense precipitation deposits a large amount of leaves, branches, and mud as well as pollutants into the streams killing some of the living organisms in the...

I was just wondering what the physical interpretation is of 'fine structure effects'? (where alpha is the fine structure constant).

Besides the obvious inefficiency (waste of energy) of a non-matching impedance between the transmission line and the antenna for a RF transmitter circuit, what are the additional effects? Is it safe to say the reflected portion of the signal returning to the source will also cause distortion...

In the electromagnetism theory, the phase factor or constant (usually BETA) in wave propagation for lossy medium has the unit rad/m. I understood that it must be interpreted as the amount of phase shift that occurs as the wave travels one meter. However, differently of the attenuation...

Hello, Recent observations claims that Dark Energy is effecting the expansion of universe and increasing the anisotropy in the cosmic microwave background (CMB). Do you agree?? what about cosmic magnetic field and its effects on the expansion and CMB ? If it is increasing the...

Homework Statement What is the effect of increasing the height of the track on the acceleration of the object? Homework Equations The Attempt at a Solution The speed of the track was slower? is it correcT?thanks

This semester my university has a lot of PhD students that are to afraid to graduate or can't be supported by their professors due to a lack of funding. So because of this there are a lot of PhD students forced to teach this semester. Of course this means that there is a huge flood of TAs this...

I've always heard people say that roaches and similar insects are completely immune to the dangerous effects that radiation has on biological organisms. Although I doubt this is true, I just wanted someone on this forum with the scientific expertise to confirm this.

when two neutron stars collide, do they creat both a balck hole and release gamma rays or does it happen in stages?

Hi all, I am curious about the effect of long term drawing/sketching/painting on the brain. Is there any serious work being done on this topic? Would be good if someone direct me to some journal articles on this. Thanks

A recent paper says that Alcubierre's warp drive probably won't work due to quantum effects: http://www.technologyreview.com/blog/arxiv/23292/ -- nontechnical summary http://arxiv.org/abs/0904.0141 -- paper Speaking as a non-specialist, it seems hard to tell which predictions about the...

I'm looking over some common physics equations as a review for the course I'll be taking next semester, and for each equation, I'm coming across two equations for each, a relativistic and a non relativistic. The class I'll be taking will be on mechanics, inertia, etc., so I figure I'll only...

Hi, I was wondering how to calculate a rough estimate of the temperature at which quantum effects begin to become important for a gas of interacting particles. Let's say the particles interact via a spherically symmetric potential with an equilibrium distance R and a well-depth E (such as the...

hello! 1st year college physics student here. has anyone thought of the effects of time on particles traveling 99.999999% C in a synchrotron? for as it has been explained to me, when something approaches the speed of light, time for the particle slows incredibly (but of course to the...

The type and potential energy of interatomic bonds in solids have a direct effect on which of the following properties? (That is, which can be determined based on bonding information alone?) a. Melting temperature-yes b. Yield strength-no c. Elastic modulus-yes d. Fracture toughness-no e...

I read that you can't directly measurethe direction of spinfor asingleelectron, but you can preforman experiment to see if two electrons are "spinning the same way" or "opposite ways". I know electron spin isn't like normal spinning. Let's say we have two pairs of electrons, each pair close...

Observable QG effects in Chern-Simons gravity--Stephon Alexander Important talk, http://pirsa.org/09110132/

I was doing research on faster than light travel and a question popped into my head: what would be the side effects of faster than light speed travel? Any ideas?

I've been thinking, what sort of effects would changing the dimensions of a solid, (lets say a block of wood, or plank.) have on the sound waves passing through it. For example, let's say I take a block of wood, and reduce the mass and surface area (I.E cutting the ends off a plank)? or cut...

I want to Commercialize Science: just not discover it: Effects of Career Choice I am in need of my major advice. My father is a Political Scientist and Economist, and he has personally wrote on current and future political and economical tyrannies. He sees the formation of a much more...