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Resolved Question: Is the force exerted by one current-carrying wire on another due to electrostatic or magnetic effects?
moreVoting Question: Answers to Physics problems!!!?
Alpha particles were directed at a thin metal foil. Some particles were deflected into hyperbolic paths due to a) gravitational attraction b) electrostatic repulsion c) magnetic repulsion d) electrostatic attraction The energy of a photon is inversely proportional to its a) phase b) speed c) frequency d) wavelength The energy equivalent of the rest mass of an electron is approximately a) 8.2 x 10^-14J b) 8.5 x 10^-28J c) 2.7 x 10^-22J d) 5.1 x 10^5J moreResolved Question: Physics questions on magnetism and light? 10 points?
Ok, here are some questions that I haven't been able to find the answer to (we weren't given a textbook to study from) 1. Which of the following produce(s) a magnetic field? a. an electric current in a wire b. a moving charged particle c. a changing electric field (I know A & C are right, but is B right?) 2. The direction of the electric field in a plane electromagnetic wave is a. perpendicular to the magnetic field and perpendicular to the direction of the wave's propagation b. perpendicular to the magnetic field and in the direction of the wave's propagation c. parallel to the magnetic field 3. The electric field vector at point in an electrostatic field indicates (may be one or more answers) a. the magnitude of the electrostatic force exerted per unit charge at that point b. the direction of the electrostatic force exerted per unit charge at that point c. the electric charge at that point 4. A glass prism separates white light into the colors of the spectrum because: a. light is reflected inside the prism b. different frequencies of light move with different speeds in the prism c. different frequencies of light superpose in the prism d. electromagnetic energy is dissipated inside the prism. (I think the answer is B?) If you could help me out on these and explain it to me, that'd be wonderful. Thanks. moreResolved Question: Gravit, electrostatic, and magnetic forces compare and contrast?
Hi i have to right a paper or do something to compare and contrast these 3 things for physics. can you guys list the similarities and differences of gravity, electro static, and magnetic forces? Also one question is why we can see gravity(when you throw something up you can see it fall), but not electrostatics. Thanks moreResolved Question: the force keeping the planets in regular orbits is?
option 1. electrostatic force 2. magnetic force 3. gravitational force moreResolved Question: What exactly is magnetism?
I know about N and S poles and atomic dipoles that line up to form permanent magnets and stuff ( college physics ) but even in class and all through HS and even now I still don't understand magnetism fully. I know accelerated charges produce a magnetic field but why or how? Is that a mystery or is that as far as scientists know today? Attraction between different charges produce electrostatic force but magnetism seems like the same nature to me but just a different behavior How is magnetism not related to electric charges fundamentally or just a different manifestation of it? I googled and googled it time after time and can't find the answer. Anyone have any insight? moreVoting Question: The dominant forces between molecules (intermolecular forces) are?
The dominant forces between molecules (in- termolecular forces) are 1. electrodynamic. 2. magnetic. 3. gravitational. 4. electrostatic. 5. electromagnetic. moreResolved Question: SCIENCE STILL NOT DONE!! I AM NOT PROCESSING THIS!?
How are electrostatic forces like a) magnetic forces b) like friction? How can satellites stay in their orbits for years? Why do sprinters always start a race in a crouching position. I know this one but I need to know how to put it into words. ( Optional ) Electrostatic air cleaners remove dust particles from the air. Design an electrostatic air cleaner. How would it work. ( I have an idea for this one but just need some help with it. THESE ARE DUE TOMORROW ) moreVoting Question: What happened in Robert Mulliken's oil drop experiment? ?
In Robert Mulliken’s oil drop experiment, he measured the charge of the electron by balancing which two forces acting on the oil drops? A Gravity and magnetism B Electrostatic forces and gravity C Electrostatic forces and magnetism. D Electric, magnetic and gravitational forces. moreResolved Question: Two identical coils of wire are placed on a single horizontal wooden broom handle. The coils are separated by?
Two identical coils of wire are placed on a single horizontal wooden broom handle. The coils are separated by a few centimeters. We now run identical currents in the same direction through each coil. The coils experience an attractive magnetic force. no forces because the currents are identical. a repulsive magnetic force. an attractive electrostatic force because one coil is negatively charged and the other positively charged. a repulsive electrostatic force because both coils are identically charged. moreResolved Question: alpha particles were directed at a thin metal foil. some particles were deflceted into hyperbolic paths due to
a. gravitational attraction b. magnetic repulsion c. electrostatic attraction d. electrostatic reoulsion moreResolved Question: Please help with my physics homework!!?
Alpha particle scattering in Rutherford's gold foil experiment can best be explained by assuming that the interacting force is- a.) strong nuclear b.) electrostatic c.) magnetic d.) gravitational Please help! Thanks in advance! moreResolved Question: Will the predicted magnetic reversal of Earth's North and South Poles be the end of us?
I read that the Earth's magnetic field is slowly building toward a reversal, with centuries of no magnetic field during the reversal. I also read about hazards astronauts on the moon face from dangerously high levels of space radiation. Massive solar storms or galactic cosmic rays from far off could have fatal consequences for any living being on the moon. By contrast, astronauts living on the International Space Station and flying on shuttle missions are protected from the worst by Earth's magnetic field. Previous ideas for moon-based radiation countermeasures include using electrostatic shielding to protect lunar inhabitants or underground bases. Astronauts could also tote around portable shielding inside the habitats in cases of emergency involving "short duration, high radiation" events. How will life (humans, animals, fish, plants, etc.) survive such a time of no magnetic field on Earth? moreResolved Question: Can anyone solve this E&M paradox?
E & M mostly makes sense, but I have one question about something that seems a bit paradoxical. If two protons are moving at a speed v relative two you through space in the same direction and are separated by a small distance, you will see them exert a magnetic force upon each other, because they are essentially two currents running in the same direction. However, if you are moving along with the protons at speed v, such that they appear to you as stationary, you would measure only an electrostatic force pushing them apart. So how could it be that two protons will attract each other in one frame of reference yet repel in another? moreVoting Question: physic questions help that i don't understand please Forces of nature?
Our understanding of the fundamental forces has evolved along with our growing knowledge of the particles of matter. Many everyday phenomena seemed to be governed by a long list of unique forces. Observations identified the gravitational, electric, and magnetic forces as distinct. A large step toward simplification came in the mid-19th century with Maxwell’s unification of the electric and magnetic forces into a single electromagnetic force. Fifty years later came the recognition that the electromagnetic force also governed atoms. By the late 1800s, all commonly observed phenomena could be understood with only the electromagnetic and gravitational forces that is the story and these are the question i need help in. 1)Determine the order of magnitude of the electrostatic force between the electron and the proton 2)Determine the order of magnitude of the gravitational force between the electron and the proton 3)explain why the gravitational interaction is negligible for the hydrogen atom moreResolved Question: does www.brickmenow.com really work? can you brick someone's cell phone or Ipod using a web site appliance???
The site looks like it really works. They say they can generate a small electrostatic field from an LCD like a lap top that if you hold an Iphone or Ipod or any electronic device it will generate a charge that will create a small electro-magnetic field in that device. That field then "feeds" off the power in the battery of the portable device eventually either building to the point where it directly creates the a very tiny EMP like pulse in the device or builds up enough static that as soon as it is grounded it will discharge. I know a small static charge can "brick" RAM or a CPU. Could brickmenow.com really work? And if so, how can you prevent "bricking"?? moreResolved Question: Non consrvative electric field produced by magnetic induction?
What does non-conservative means? and why is electrostatic field by charge distribution or point charges concidered conservative? For non conservative E field, [Int E.dL is not 0] implies that the concept of potential has no meaning. What does that actually mean?can anybody pls explain.. thanks.its a line integral moreResolved Question: The powers of attraction - are they related - or actually the same?
Electrostatic, magnetic, and gravity. I know about wind - not because I can see it, but because of it's actions on other things. The same is personally true of the above. The theory of electricity started by rubbing amber - and generating an attraction - thus the "electron" was born. But is this the whole story? You can put a magnet on a steel plate - and it will support a load indeffinately - without any other energy input. Indeed you have to exert effort to remove it - thus showing it's "power" - but power has to have a source? Gravity is what keeps us all here. Larger objects have more gravity. Therefore more atoms produce more gravity.- but why should it be so? We also see that electricity (created with magnets) can affect #1 - creating magnetism and static charge, - but could #3 be affected as well?If two copper coils are separated by a small distance - connected with 2 wires to form a circuit, and a magnet is passed into the first coil; How come the resulting magnetism created at the other end is not identical to the power of the first magnet? The idea of electrons not getting lost is fine, but we can detect that magnetism is lost throught this circuit. Replace the copper wire with a steel tube, and there are fewer losses - the magnet retaining almost all of it's power at the other end. How can magnetism travel through steel better than copper?MRI brain scanners-"By impinging a strong superconductor-derived magnetic field into the body, hydrogen atoms that exist in the body's water and fat molecules are forced to accept energy from the magnetic field. They then release this energy at a frequency that can be detected and displayed graphically by a computer." So, Magnetism into molecules = resonant frequency out. Simple maths dictate that Resonant frequency into molecules = Magnetism out. Is this true?Thanks kangaruth - The only force that I have found to counteract gravity, is electrostatics. The effect of charged ions has been shown to act in a linear manner - Is gravity essentially "static cling?" Charged particles do have an affinity for particles of an opposite charge. - It would certainly explain the ability for ball lightening to float .- Anything carrying that much charge will float! moreResolved Question: Physics Help?
Mechanical energy is not conserved in the presence of which of the following types of forces? 1. gravitational 2. frictional 3. magnetic 4. electrostatic Which of the following types of forces are nonnegligible in this problem? 1. gravitational 2. magnetic 3. electric 4. frictional 5. inertialCorrect Answer: #1- frictional #2- electrical moreResolved Question: Is magnetic force of interaction( if it exists) between two particles greater than electrostatic force?
Is magnetic force of interaction( if it exists) between two particles greater than electrostatic force of interaction between two particles? If it's so, Shouldn't electrostatic force of interaction between two particles be greater as we are dealing with particles like charges in subatomic level while magnetic force is atomic in natures(like domain in ferromagnetic material) ? moreResolved Question: electro magnetic fields?
2.Suppose an electric field with a magnitude of 2.8 E 4 N/C at a certain location, points due south. If a charge of -4.0 E -6 C is brought to the location, what is the electrostatic force that acts on this charge? 1.Matt forgot to put the fabric softener in the wash. As his socks tumbled in the dryer, they became charged. If a small piece of lint with a charge of +1.25 E -19 C is attracted to the socks by a force of 3.0 E -9 N, what is the magnitude of the electric field at this location? moreResolved Question: What is the effect between two electrostatic negative charges?
The choices I have are: A. The magnetic poles will attract B. Lines of repulsion are formed. C. The field strength will grow D. The magnetic poles will repel. An explanation would be great, thanks. moreResolved Question: Please help with difficult homework problem?
Small electrically charged ball m=3kg slides without friction on level plane in vertical magnetic field. http://i24.tinypic.com/io2erq.jpg At the center of the plane, fixed on vertical axle, sits a small net-uncharged dipole, which can freely rotate on the axle. The dipole follows electric field of the charged ball, so that its constant horizontal dipole moment assumes direction of minimum energy. Initially the distance between the balls is R=1m, velocity of the ball is 2m/s directred at right angle to R, the force of electrostatic attracton to the dipole is Fe=4N, and the magnetic force acting on the charge of the ball is Fm=12N.. After how much time T will the balls collide? moreResolved Question: if magnetic and electrostatic fields follow the inverse square law,?
do they strive to fill all space once created,meaning,post field creation,does the static field expand indefinitely,of course ever weaker but never becoming zero? moreResolved Question: do the laws of physics mean that free choice is not real???
if every single particle in the universe since the big bang has followed the same laws that they do today, such as gravitational, magnetic, electrostatic etc. interactions, (and anything else that goes on whether we know about it or not), then every single event that has ever happened between every particle in the universe was already mapped out from the start. if this is true, the laws allow us to predict the outcome of these interactions and that they will always happen the same way every time and that there is no other possible outcome, in other words there is no such thing as a random event. so, once the big bang set everything in motion expanding apart and interacting, its fair to say that there was no other possible way within the laws of physics that things could ever have happened? like a chain of dominos? so, is free choice is just an illusion? dunno if im the first 2 think of this or if its well known, it just occured to me when getting stoned. thoughts???also i have to add, in response to le miserable: the interactions going on not only at the atomic level (and beyond) are still what determines things at the other end of the scale, things that consist of many millions, billions, (even SQUILLIONS, hahaha) of particles, for example, the weather dictating our behaviour - our past experiences influence our future actions. also with regard to thoughts, arent these just electrical impulses in the brain, at the end of the day more particle/energy interactions?? moreResolved Question: What is your vacuum cleaners worst enemy besides neglect? Want to NEVER buy another vacuum filter again?
Just a couple of the many tips that I have for vacuum cleaners. So, what's the clogger king? HAIRPINS, BOBIPINS! I service vacuum cleaners and the number one thing I find in the hoses of clogged vacuums are the hairpins that end up lodged sideways there because the spinning brushroller underneath the vacuum separates the pin and everything that follows must somehow travel around the pin. It's usually a small piece of cardboard, or a matchbook cover. REMEDY? Get yourself a magnet and skim the floor first. You can also get a magnetic strip that goes across the front of the vacuum online at any vacuum cleaner parts supplier. Now, for the filters. Hepa's CLOG! FAST! The vacuum cleaner manufactures know this and they screw you out of your money. PERIOD! Hoover uses ELECTROSTATIC MEDIA to make their filters. So you know what they do. 99.97%... SO DO THESE: A TEN PACK OF 4" X 11" ELECTROSTATIC REGISTER VENT FILTERS- cut-STACK-glue COST? $2.79 where? Lowe's in the furnace filter section.Thank You! Now as far as the long blond hair? If you get a carpet rake available at an online store called Hesco ( at hescoinc.c..) they happen to have a very nice carpet rake that has a cool "icee" blue 18" wide plastic front with several flexible metal tines and a wooden handle. I get their catalogs and this rake is on their "big savings type page" I think it is around $15-$16. These rakes work great to pick up hair and other small fuzzy build, especially from brand new carpet. In the end it will save your vacuum cleaner too. While I'm here I'll also mention the best ways to clean your carpet. (the Kirby owner will like this) The BEST way to MAINTAIN a carpet is with a Kirby shampoo set-up on a Kirby vacuum cleaner. If it's very dirty,I clean carpet for a living & use a big heavy SPIN-BONNET cleaner (looks like a buffer- BONNETS are "SLOWSPEED" machines, where as buffers are typically "HIGHSPEED". For the BEST CLEAN always call a company that 1st Bonnets THEN Extracts moreResolved Question: Where can I find documents about ANSYS electromagnetics analysis?
Hi Can you tell me where I can find documents about ANSYS electrostatic and magnetic analysis? ( Not its help) Thank you in advance moreResolved Question: positive and negetive impact of forces-magnetic,electrostatic,grvitational.?
moreResolved Question: What are muscular, frictional,gravitational,magnetic and electrostatic forces ?
Plaese give me the best answer possible. moreResolved Question: Hi, Need ur help immediately!?
Can u give some disadvantages of forces like Magnetic Force, Electrostatic Force and Gravitational Force? Pls if u know any of the websites , please tell me. Thanks The Superstar moreResolved Question: Hi, Need ur help immediately!?
Can u give some disadvantages of forces like Magnetic Force, Electrostatic Force and Gravitational Force? Pls if u know any of the websites , please tell me. Thanks The Superstar moreResolved Question: What formula would you use for these situations?
Given the distance between two charged objects determine the electrostatic force. Given the electric field strength due to two charges, determine the magnitude of the force on one of those charges. Calculate the equivilant resistance for a series parallel or combination circuit. Calculate the power for a series, parallel, or combination circuit. Determine the current through a resistor in a series, parallel, or combination circuit. Given the distance between two parallel plates the potential difference and the size of the charge, determine the kinetic energy of the charge. Calculate the magnitude of the magnetic force on a current carrying wire. moreResolved Question: Help pleasee!?
Can u explain how forces like Magnetic force, Electrostatic force, Gravitational force has lead to the modernisation of society? Please can u give some positive and negative impacts of these forces? ThanksAre there any websites which can help me find something about this topic? moreResolved Question: Magnetic force in atom?
All moving charges produce magnetic force inclusive of rotating effect. In atomic level, the positive charged nuclues produces magnetic field and the magnetic field is stronger when nearer to the nuclues. When electron circulates in atom, will the electron react with the magnetic field of nuclues according to Hall Effect? Bohr only developed half of the theory on electrical side, but he didn't produce another half on the magnetic side. It can be mathematically proved that electron does not fall into the center of atom due to the balance of electric and magnetic forces. Electron is attracted by the electrostatic force (E) and repulsed by the magnetic force (M). When the M&E forces are balanced. Electron orbits the nuclues at certain distance. If electron gains enough energy, it jumps to another equilibrium stage. Does this description make sense to you? moreResolved Question: comparing magnetic deflection with electrostatic deflection?
i know oscilloscopes tend to use electrostatic deflection instead of magnetic deflection because electrostatic deflection can be more easily be made proportional to the input signal to the deflection plates. but why is this? moreResolved Question: Relationship between Newton's Laws and Quantum Physics?
Hi! Do the three laws of Newton break down at the quantum level (for protons, electrons, neutrons, quarks, anti-matter) or we do not apply Newtonian mechanics at all at quantum level? What is an electron? Does it exhibit wave like properties or magnetic properties, besides its usual electrostatic charge of -1? How does it travel? In a cloud of electrons or in straight lines? Do Newtonian mechanics work at astrophysical level? In black holes, galaxies, Pluto, Saturn and other planetal level? You may answer selectively. Thank you. I am not looking for a complete answer.Thank you all for your insightful answers, especially Frank N. I was not expecting a thesis, but just some insights into physics. Physics is fairly intutive at classical mechanical level but becomes a bit bizarre at quantum physics, in my personal opinion. Is what we see in the physical world the reality, considering the implications of quantum physics? That's a question I would rather not ask or ponder too much. I would rather stay away from quantum physics as much as I can, if possible. moreResolved Question: can you help with electrostatic and electric fields?
i'm having trouble differentiating those two, what else with magnetic fields. thank you so much for your help! =) moreResolved Question: Electrostatic force vs magnetic force?
If electricity and magnetism are two aspects of ? moreResolved Question: the small molecule of water is liquid because of?
1.magnetic force 2.Electrostatic force 3.Hydrogen bonding 4.Covalent bonding moreResolved Question: Why is gravity so weak?
For those of you who know what the Universal Gravitational constant is, you know that it is a very small number. On the other hand, the electrostatic constant and magnetic constant are both large numbers. All three of these constants are used in three formulas with the exact same format to determine the strength of a force. Why is it that Gravity is so weak compared to electro-magnetic forces?Universal Gravitational Constant = 6.67 X 10^-11 Electrostatic Constant = 8.99 X 10^9 moreTop Electrostatic Magnetic Links
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