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Electrostatics
Electrostatics is the branch of physics that deals with the study of charges at rest. A common electrostatic phenomena is plastic wrap sticking to your hand and itself when removed from the box. Everything to do with electrostatics goes in this category.
1,860 Questions
Explain the generation of static charge in terms of separation?
When two objects are rubbed together, electrons can be transferred from one object to the other due to the friction created during the rubbing process. This transfer of electrons creates a charge imbalance, leading to one object becoming positively charged (due to losing electrons) and the other becoming negatively charged (due to gaining electrons), resulting in static charge generation.
its atomic number
the number of neutrons
What device uses static electricity to form images?
A photocopier machine uses static electricity to form images. The process involves positively charging a drum, which then attracts toner (negatively charged) to form the image before transferring it onto paper and fusing it with heat.
Your question is incomplete. They should also give you the thickness of the membrane.
Potential Difference is
V = E (distance between two points in an electric field)
E= thickness of th membrane
Therefore V = E(7.8)
Anti static wrist straps anti static bags?
Anti-static wrist straps are worn on a person's wrist to safely ground them while working on electronics to prevent damage from electrostatic discharge. Anti-static bags are used to store electronic components and devices to prevent static electricity buildup and protect them from damage. Both are important tools in preventing damage to sensitive electronics from static electricity.
They are used in circuits and devices commonly (eg.the computer and TV) they slow the amount of electrons going through so that if you are plugged into the mains and have a light bulb that is small, the resistor would be put in place to the device eg.the light bulb doesnt burn out.
What is a good 8th grade science fair topic?
Investigating the effects of different levels of acidity on plant growth or testing the effectiveness of various natural pesticides on controlling insect infestation could be intriguing science fair topics for 8th-grade students.
What causes static electricity to build up?
Static electricity builds up when there is an imbalance of electric charges on the surface of objects. This can happen when two materials rub against each other, transferring electrons from one material to the other. The accumulation of these excess charges creates static electricity.
How can you avoid getting shocked because of static electricity?
actually yes!... you can... although it will be consider a weird thing to do. Constantly be touching wood. Never, if you don't want to be shocked, touch metal without touching wood first. There are other ways to stop getting shocked by static electricity. One way is to put lotion on exposed skin areas. See the Related Link for more ideas.
Conversion of decibel into frequency?
Decibels (dB) and frequency are different units of measurement that measure different things. Decibels measure the intensity or level of a sound or signal, while frequency measures the number of cycles of a wave that occur in a second. There is no direct conversion of decibels into frequency because they measure different aspects of a signal.
Why are metals good conductors of electric current?
Metals are good conductors of electric current because they have loosely held electrons in their outer shells, which are free to move and carry charge. This electron mobility allows for the easy flow of electric current through the metal. Additionally, the lattice structure of metals provides a pathway for the movement of electrons.
The new force would be more than 12 N because according to coulomb's law
F = k Qq / r^2
where r is distance between the charges. So, when the distance gets reduced force increases.
What happens when static electricity is discharged?
When static electricity is discharged, the excess electrons stored on an object are released, causing a flow of current. This discharge can result in a spark, heat, or a mild shock. The process equalizes the charge between objects and reduces the imbalance of electrons.
What strategies a teacher can use to multicultural education issues among learners?
A teacher can incorporate diverse perspectives into the curriculum, provide opportunities for students to share their cultural experiences, use inclusive language and resources, and promote open discussions about cultural diversity. It is also important to actively listen to students' experiences and create a safe and respectful classroom environment that celebrates differences.
(a) I just want to add my complaint about Conn's Appliances to this to help warn people about this shady operation. I bought a refrigerator from Conn's and they forgot to send me the payment book. When it came time for me to make my first payment, I called them and asked them for the amount and to send me a statement. They told me they would send me the payment book. In the meantime, they asked me to make a payment over the phone which I agreed to do but the problem is that they went into my bank account and took not only the amount we agreed upon but something they called a late fee. We never talked about a late fee since it was their fault they did not send me the payment book. The point is I never agreed to any addition amount beyond the specific amount of the monthly payment. In the meantime, they reported me to the Credit Bureau as a late payment in spite of the fact that I agreed and made the payment. It seems they had some kind of internal mix up inside the screwed up Conn's operation where the right hand did not know what the left hand was doing or something like that. I have been disputing this with them for five months now. They refuse to admit they were wrong to go into my bank account and take more money than I authorized. I notified them to never go into my bank account again as I was rescinding any and all authorization giving Conn's any access to my bank account. They have retaliated by refusing to correct the bad marks they put on my credit. They refuse to admit they were wrong to take money I did not authorize from my bank account. I have had at least a couple of dozen phone calls with them and they are rude and disrespectful. They make all kinds of threats that stop very short of being illegal. They have called my house at all times of the day, numerous times to try and inconvenience me. They call on Saturdays and Sundays. They call early in the morning and late at night. They harass and threat by leaving messages on my answering machine that give the impression of being from "Conn's Corporate Offices" or from "Conn's Legal Department". In their message they lead me to believe they are going to work this issue out with me but when I talk to them they refuse to say specifically that they will correct and resolve anything specific. They use pressure tactics. They even sent me a bill saying I am being penalized by raising the total amount of the refrigerator up an additional $275.00. The past Sunday ("Sunday") they left a flier on my door threatening more legal action leading to repossession. They did this while I was inside my home hosting company. This CONN's APPLIANCES is a mean, vile, dirty, vicious and ruthless company. The name Conn's fits them perfectly because they ought to be behind bars somewhere. Now that I am researching complaints against them on the internet, I want to warn other potential victims to take these complaints seriously. Like they say, let the buyer beware when dealing with the cons at Conn's Appliances.
-Al Hebert
Houston, Texas
(b) Here is my letter to the Conn's Customer (cough) Service Department:
27 June 2008
To: Conn's Customer Service,
In April I was sold a lawn tractor at the Conn's location in Conroe, Texas. This tractor turned out to have been assembled in a faulty fashion, with an entire assembly left missing which would hold up one side of the blade housing, and which resulted in the housing and blades hitting the ground and snapping the belt which drives the blades. Luckily there were no injuries, or worse, due to your company's incomplete assembly of a large piece of power equipment.
I called Conn's customer service at a toll-free number that I was given when I called the store where I purchased the tractor, but for more than 6 hours straight the line at that number was busy. I then went online and looked up another customer service number. I found one in Houston, which, while a long-distance call for me, at least resulted in my getting to speak to a 'real person' after almost an hour of waiting for someone to pick up a phone there. I told the 'customer service' representative (I use the term extremely loosely as there was no service rendered) that I knew what was wrong with the tractor, I had the parts list and was prepared to give the list of specific parts missing to the representative to save a lot of time and unnecessary hassle, as I live in a rural area approximately 100 miles from Houston and 10 miles from the nearest town. The rep refused to note down any parts, or do anything whatsoever other than look at his computer and tell me the earliest date that someone could come out here - this was a date 3 weeks later on June 27.
Today is June 27. At 7:20 am I was awakened by a call from a man at your company who was supposed to come out here and fix the tractor that was assembled, by your company, without all it's parts. He immediately asked what parts were missing. I gave him the list, which the original customer service rep refused to note down, and the 'repairman' verified to me that he was aware that the customer service representatives 'always' refused to note down any part numbers or have anything to do with the specifics of a customer's actual problem. Again I am forced to use the words "customer service" in only the loosest of terms, but at least I am in good company if the several hundred complaints anyone can find online and the vast amount BBB complaints are any indication of how the majority of your former customers have been treated by those employees of Conn's who are supposed to be taking care of the people paying out a lot of money for product and service.
My issues are as follows:
a) your company assembled a large piece of equipment without all it's parts, causing it to not only break itself, but rendering it extremely dangerous as well. Putting it bluntly I could, and may well, retain an attorney and file suit for the danger to my family and I caused by Conn's.
b) your service department rep refused to discuss any specifics about my issue, note down part numbers, names, etc, and such behavior, as verified by your own repairmen, is standard operating procedure for Conn's
c) your repairman called my home telephone at 7:20 am - well outside normal business hours of any sort - and as I work at night a 7:20 am telephone call was certainly not appreciated - especially as the reason for the call was to get part numbers I had offered weeks beforehand but which were refused.
d) your repairmen, even though this was scheduled 3 weeks in advance, never showed up. At all. Even though he said at 7:20 am that he had those particular parts in stock.
I think you can see where I, and any other sane person, might feel that it would be to my advantage to immediately retain legal advice on filing suit against Conn's, for various things ranging from breach of service contract, to physical endangerment.The sheer amount of complaints that are currently logged online against your company's service department only serve to reinforce that decision.
I would like a customer service manager to call me ASAP at my home If I am at my office at the time my wife will direct them to the telephone number I may be reached at.
Jared C
Trinity Texas
c/c: (law firm name)
I have had the same problem!I have the same problem! I paid an exorbitant sum for my washer and dryer. I also purchased the extended warranty. My dryer did not work for approximately the first month and a half! The service repairmen-when actually showing up-never had the parts needed to repair. Any calls to the customer service line was useless! I even went as far as contacting the VP of Service-Farah, and the VP of Customer Service-Allen Sheppard (409-832-1696)-who basically wanted me off his phone as soon as possible. When Farah contacted service in Dallas-they even gave her issues. Now my machine is broken-again-even though they originally replaced major parts-motor and heating elements-multiple times-not to mention replacing the whole unit. I did NOT buy bad machines-my in-laws are from overseas-and they are some of the best selling-most requested machines over there! The problem here is the fact-and the latest service repairman admitted to it-they do NOT know much about these machines. Why sell them-with a warranty-if you don't have trained technicians to repair them? I have even offered to pay the manufacturer to come out and repair them-at my cost and have Conn's re-imburse me. The manufacturer is willing-but can't because Conn's has to give them the approval to repair-and even after asking Conn's multiple times to give the manufacturer approval-they still haven't. Now-they were supposed to overnight a part last Friday-to be installed last Saturday. It is now Tuesday-and I haven't even received a call back. And when I call in-I get the run-around. And this is after waiting over a week for them to come out to even look at the machine. Do NOT let them fool you-the Service manager would have you believe that their repairmen don't work after 6pm-the service team has no problem working late when it serves their purpose-we once waited all day on a Saturday for a service guy that was supposed to be there before 12pm-he didn't show up until approximately 8:30pm. This is not my only issues with this company. When they delivered-we paid for next day delivery-they called the next day and said said it wouldn't be delivered for another 2 days-was never re-imbursed for the next day delivery charge. Also, we once waited over 3 1/2 hours for a salesperson to help us in store-cash in hand to buy a sofa and 37 inch TV. We stayed only because my husband and I-newly wedded had searched far and wide for a sofa and this was the only one we could agree on. This was of course-the day after we bought the washer and dryer-it hadn't delivered yet-other wise I would have rather sat on the floor than to give them any more of our money! I use to be a loyal customer-as was my entire family-we will never shop there again. We would rather pay more-and have good service!The new CEO is Mr. Thomas Frank, Phone number: 409-832-1696 ext. 3218. For those of you wanting to bypass "Customer Service".
Thanks for Reading-
Jewel
Dallas, Texas
What is a rapid movement of excess charge from one place to another?
A rapid movement of excess charge from one place to another is known as an electrical discharge. This phenomena can result in lightning, electric sparks, or discharge in electronic devices.
Not for long.
In the mechanical sense, yes. The cartridge is self contained and no air is required to fire it. Fluid resistence would be much higher underwater, and would greatly reduce the functionality of the weapon.
Both the US & Russian military have performed R&D on underwater guns, with little practical success.
A2: I think a gun will blow up or damage ("ring") the bore if fired under water. One shot May come out, but, that's all. Some cartridges that are non-militray may not be sealed, and water might get to the powder/primer, not firing or hangfiring.
Why not electron collapse into the nucleus?
Electrons inhabit a probability cloud around the nucleus, which is related to their possible velocities. The closer the cloud is to the nucleus, the higher the kinetic energy, which allows it to overcome the electromagnetic attraction of the protons.
What can happen when an charged object can be brought near an uncharged object?
A neutrally charged object can still be affected by a charged object. If a neutrally charged object is being approached by a negatively charged objects, the electrons within the neutrally charged object will migrate to the other side (as the two negative charges repel), leaving the side closes to the negative object positive. Protons do not move. From there, the protons are attracted to the electrons, therefore moving the 'uncharged' object.
What is the formula to work out horsepower?
Horsepower is a unit of power. 1 horsepower = 745.699872 watts The formula for Power is this: Power = Work/TimeThe SI unit of power is the watt (W), which is equal to one joule per second. The SI unit for work is the joule (J). The SI unit for time is seconds (s).
Why is Coulomb's law valid only for a point charge?
Coulomb's law is applied to point charges because there are "problems" applying it to a charge that has "dimension" to it. A charge is surrounded by an electric field. If we cannot treat it as a point, then the charge has to be "distributed" through the "body" of the charge. It will change the way we have to do the math. If we view charges as non-point sources, then we can't apply the mathematics to the charges in quite the same way as we do when we work things out with point sources. Take a charge that isn't a point source and one that is. If the charge that isn't a point source has "dimension" to it, then the charge on that charge (if that makes sense) is not eminating from a point but from the "body" of the charge as a whole. The electric field will be "distributed" over the volume of the body of the charge, and its effect on a point source will have to be worked out differently than it would if it was point source-to-point source.
Electric lines of force never cress Why?
I think you mean "cross". And furthermore I think you mean the old iron filings around a bar magnet demonstration showing "magnetic lines of force". With all this guessing I propose an answer that your teacher won't like either: They don't cross because they don't exist. To prove this-- Sprinkle the iron filings on paper with a magnet beolw the sheet. Notice that they don't move. Photograph it. Do the experiment again. Photgraph this too and compare the two photos. They will be quite different showing that the "lines of force" are only an artifact of iron filings being sprinkled onto the paper.
After a discectomy surgery should I ever lift heavy objects?
It is generally recommended to avoid lifting heavy objects after a discectomy surgery to prevent strain on your back and increase the risk of complications or new injuries. It is important to follow your surgeon's post-operative instructions and gradually reintroduce physical activities based on their guidance.
