hand Definition and 450 Threads

I'm working with Coulomb's law, and finding the force from known charges is easy. But I don't know how to find mass from Coulomb's law, and I guess I don't know an equation that will help. Two equally charged particles, held 3.8 x 10-3 m apart, are released from rest. The initial...

Hello. What is hand stroboscope ?How is it works ? how can we see anything freez by using the stroboscope ? Please explain. thankyou

My notes from lecture are somewhat deceiving. I have this table that is supposed to make plotting the phase portion of a Bode plot simple. I understand the magnitude portion, however I do not get what is being said for the phase portion. I am spending too much time on something that is supposed...

I forgot i had been touching chili, and now every thing feels like it has been dipped in acid, i have had a shower and washed every thing in milk, but it still hurts like the devil, any cures PLEASE.

Bah! damn this stuff! Anyone know how to get silver nitrate off your hands? I was thinking of finding a photography store and see if they have any chemicals since i know its something photo...people...whatever... use :). Any suggestions? help? cut off flipper?

Here's a pulley problem that has got me stopped; I'd appreciate any help that's offered. There are two blocks, A (44 N) and B (22 N) connected via a rope that stretches over a pulley. Block A is resting on a table, and block B is hanging over the edge. Block C is positioned on top of Block A...

what is the left-hand material or the right-hand material? Is there some liquid that belongs to the left-hand or the right-hand? thank u...

How does one find the roots of an equation, for instance: r^4 + r^3 - 7r^2 - r + 6 = 0 ...completely by hand. Is there some type of non-lengthy process or trick to find special circumstances for easy solving? Thanks.

Simple question, simple answers. We've had a lot of, what I consider, pontificating about the US becoming a "police state" lately (ehh, who am I kidding - people have been saying it for decades). I'd like to avoid the argument of what constitues a "police state" and are we actually moving in...

Does anyone know where I can find information on the Left/Right Hand rule for Motor Principle, for Motor Principle not Electromagnetism because I know that one already. Appreciate any help given. Just need a link or even the concept of it.

I was wondering if someone could give me a link to a site that will discuss the left hand and right hand rule for a straight conductor and a helix.

Hey, We recently started learning about magnetic fields and forces in physics and we took these weird right hand rules... After much attempt I cannot, for the life of me, figure them out. Is there any way I can find the direction of the field or a force without using my right hand? Like on...

Sorry to post so many questions. But i need help. 1. A five card poker hand is dealt and the last card is turned face up. Determine the probability that you have been dealt four aces, given that the card turned over is an ace. I think its a conditional probability problem but here's what...

I have learned just about the right hand rule in vector cross product. How is this proved? Can anybody give an example where the cross product plays an important role and where the vector cross product formula is obeyed? Our professor just told us that the torque due to a force acting on a body...

Hiya all, I'm stuck on a physics question set for homework. It asks "draw vector diagrams to scale to show the vertical and horizontal components of the velocity of the tip of the hand at quater-past, twenty past, twenty-five past and half past the hour." The hand is 20cm long so using the...

How does a hand stroboscope work?

I hope anyone could give me a hand on this one... The induced emf in a 5-henry inductor varies as V=(6t+26)/(t^2+10t+21). Recalling that current i=1/L∫Vdt, find the formula for the current i as a function of time t. This is what I've gotten so far...

hi i have a few general questions on the right hand rule, 1. if a charged particle enters a magnetic field going from bottom left to top right at an angle of 45 degrees, and the direction of the current is vertically up how do we determine the force using the right hand rule? 2. a wire which...

Long story short: I had some. I had to donate them. I don't want to buy them again if I don't need them. I only need a few lines right now. It's perfectly kosher, IMHO. So... If anyone has a version other than the First Folio or Second Quarto, I'll grant you one wish if you tell me what it...

Every year when I was a young child my aunt would take my siblings and I to Chuckee Cheese. Earlier today I was reminiscing about the great times when I remembered that everyone would receive a small and invisible stamp upon entering the restaurant. Since they did not charge an admission fee...

I m finding Difficulty in applyng flemings left hand rule to DC otor and AC Motor.Dats y i never like Applied Physics.

I am quite confused about the motor rule. I have a few questions concerning the topic: 1. How can I determine the direction of magnetic field acting on a current-carrying conductor? 2. How can I use the left-hand rule practically? Suppose that the current is in the north direction, and...

If a metal ring is places near a solenoid, what is the direction of the induced current in the ring for the following cases a. At the instant the swithc in the circuit containing the solenoid is thrown closed. b. After the switch has been closed for several seconds. c. At the instant...

What is the five hand rule? I need to know what direction the wire is going to move [N] I <-------- [S]

i got some strong magnets from work which i think are neodymium magnets. well i was messign with them and i held them in my hand and put my hand near my alarm clock/radio and then my hand began to tingle or feel weird when it got close to it. can someone give me an explanation for this :biggrin:

I was watching a show called Daily Planet a while back when some author of a Science book said something like, "There is a probability that my hand will go right through this table." I started thinking about what he said, and I rememberd hearing one of my Science teachers 2 years ago saying...

Hello. I have a question about RHR #2 (Force in a conductor). If IL X B = F and If the fingers represent the direction of the current, the thumb represents the direction of the force and the palm is the direction of the magnetic field, how come the magnetic field can be at an angle...

Hello Everyone, I am having trouble with the left and right hand rules in Physics. If anyone could explain them to me with as much detail as possible I would really appreciate it. I can tell you what I know and some of what I would like to know if it helps: The left hand is used for...

this is possibly the only interesting hand shaking question i know of: 5 couples go to a party. at the party everyone shakes hands with every one they don't know. (note: its not a blind date thing, i mean everyone knows their spouse) at the end, Bill, the known loser, asks everyone how...

The electrons in the beam of a television tube have a kinetic energy of 2.40×10–15 J. Initially, the electrons move horizontally from west to east. The vertical component of the earth’s magnetic field points down, toward the surface of the earth, and has a magnitude of 2.00×10–5 T. Just when...

Indicate the direction of the electric field between the plates of the parallel plate capacitor shown in the drawing if the magnetic field is decreasing in time. Give your reasoning if the magnetic field is decreasing, so is the flux, so mr. lenz says the induced magnetic field must be out of...

if i put my hand on the scanner and scan my hand, do u think the strong light will harm my hand? because i really want to scan my hand, but i don't know whether it is harmful.

I think this is a simple question but I'm not sure if I'm doing it right, this is what I have so far... A watch has a second hand 2.0 cm long. a) Compute the speed of the tip of the second hand. C = 2pi(r) r = 2.0cm = 0.02m - leave as cm or convert to m? V =...

Hi agian... I have one of those hand shaking problems..it says: There are 14 couples. There is some shaking of hands. No one shakes hand of their date. No one shakes hands more than once with anyone person. A boy asks each person how many times they shook hands. Each person gave him a...

Im having a really hard time with these...I have three different problems so here they are.. Situation one: Particle moving up, field moving to the right. Thus the force has to be either into or out of the page so to speak because it has to be perpendicular. Through the right hand rule I...

O.K. HOw much heat is absorbed by a person's hand if steam at 100degree C is first converted to liquid water at 100 degree C and then cooled to normal body temperture? I'm not sure of the formula for this one.

Hewlett-Packard reveals the pricing and storage capacity for its clone of Apple's music player. {br}{br}View the Entire Article{br}

I noticed that in the opening ceremony of Olympic Games, the athletes used left hand to hold the torch, why not right hand?

http://www.cbc.ca/stories/2004/05/20/sci-tech/dogs_dna040520 For the Science Article http://www.sciencemag.org/cgi/content/abstract/304/5674/1160

All of the books and experience I can find offer only a Right Hand Rule for magnetism (current in a wire, particles). Since this is good for only positive particles, students must remember to switch the direction of the force when using the rule. Why not just use the left hand for negative and...

A vertical wire carries an upward 3 amp current. you are 1.2 m from the wire in a direction 20 deg north of east. You experience a magnetic field ( due to the wire) that is directed in what direction? Yes, you do use the right hand rule, but what direction does the right hand rule tell you?

I think my brain is freezing. I can't see how to get the answers to these questions. A poker hand is defined as drawing 5 cards at random without replacement from a deck of 52 playing cards. Find the probability of each of the following poker hands. (a) Full House (one pair and one triple...

Excerpt of my selfwritten math functions, enjoy. /*+++++++++++++++++++++++++ /*Project III /*Object Oriented Programming /*Dr. Fani Milanova /*Tom Zhang /* /*Note: No java package was /* imported. Everything /* was done by selfmade /* functions. /* This...

Recently I was playing in the snow without gloves. I made a snowball and the residual water on my hand began evaporating and was visible, much the way your breath is in the cold. Why did the water do this?

Does anybody know? The basics? A procedure? Anything i'll be glad with anybody's advice. Thank you.

second hand smoke? Riddle me this... You know all the "stop smoking" or "truth" adds? Most people are claiming that second hand smoke is more harmfull than first hand. Do you think this is a true statement? Why do you think this is? Is it a chemical reaction that happends in your...

can someone give me the formula needed to do this problem? "a karate strike hits wooden blocks, the hand undergoes an acceleration of -6500 m/s2. Medical data indicates the mass of the forearm and hand to be about 0.8 kg. What is the force exerted on the hand by the blocks?" am i supposed...

I've seen them on radios, cell phone charges and flashlights. I haven't seen one in person, but I just want to get an idea of how they work. I'm guessing some massive gearing and a small generator/motor? And what does it use to store the energy? Or is it stored mechanical energy? Thanks Philip

I've been dying for an excuse to try out the suit symbols in TeX, and I just had a fun bridge hand that is the perfect excuse! Here's your hand: \begin{array}{l l} \clubsuit: & KJxx \\ \diamondsuit: & KQxx \\ \heartsuit: & \\ \spadesuit: & AKQxx \end{array} Your partner opens...

I throw and write using my right hand, but for things that I do with both hands like swing a baseball bat or hold a knife and fork when cutting food I do as a lefty. Does anyone know what this might mean? I couldn't find anything on the net about this. Thanks.