North pole Definition and 50 Threads

In many books, the direction of the magnetic field is mentioned as north to south. It says they have marked it because the north pole of the compass faces to south. But why can't we say the direction is the opposite of it as the south also attracts to north? When I browsed answers, most replies...

Consider a pendulum swinging at the North Pole in an inertial frame of reference xyz with the x and y axes in the plane tangent to the pole and the suspension placed at elevation z = l. There is no induction \mathbf{B} and in the chosen system the plane of oscillation xz of the pendulum is...

It has recently sped up to 30 miles per year, prompting a navigational update mostly for the North Pacific and Arctic regions. https://www.japantimes.co.jp/news/2019/01/12/world/science-health-world/north-magnetic-poles-movement-forces-unprecedented-navigation-fix/

The choice of the North Pole being up on a map is arbitrary as far as I know. Is it that way because publishing cartographers came mostly from the northern hemisphere? Is there some reason related to navigation (like Polaris being over the north pole) that might motivate even a southern...

Homework Statement You have a circular coil, and two metal plates a and b. The north pole of a bar magnet is moved away from the coil at a constant velocity(assume the bar magnet and the coil lies along the x axis). On which plate will the excess positive charge appear? Homework EquationsThe...

If we standing in the equator, then centrifugal force caused by Earth rotation directly balanced by gravity force. But what if we standing in the high altitude or in the pole? In the pole at the distance like 40 km from north pole (so the north pole inside the horizon plane), the gravity have no...

Temperatures at the North Pole are above freezing! Its winter at the north pole, and the sun won't raise there until March 20. There is also a patch of ice free water north of Greenland! Washington Post article here. This used to be unusual. The times they are a changing!

when a magnet attracts the north end of a compass, what does that mean?

Homework Statement Hi everybody! I'm stuck at a problem I was given in my special relativity theory class, can anybody help? A golfer is on the North Pole, on a flat surface perpendicular to the Earth axis and without friction. He places himself at distance L from the pole and hits the ball...

I came across this problem: Explain how you would determine which was the north pole of a bar magnet, without using any other magnet. I was thinking of using a solenoid, and dropping the magnet in. Then you can determine whether it was a north or south pole by whether the current flows...

what would happen if north pole of Earth becomes south pole and south becomes north ? What would be the chenges on Earth's climate or any other changes ??

From the perspective of someone at or near the exact north pole (where, for all practical purposes, they are not rotating), ignoring the gradual change of the stars as the Earth orbits the sun, would the stars appear to move at all in the night sky? Or would they be stationary because the...

Hey guys, take a look at this question if you may Suppose the moon, instead of a sphere, is a disc orbitating the Earth ( the moon's total mass is equal to the disc's total mass), the intern radius of the disc is equal to half the distnce between moon and Earth's center of mass and the external...

From the north pole, how high is the sun @ midnight on the summer solstice ? Thanks

I have several bar magnets with the north and south poles labeled on them. It is my understanding that a compass itself is a tiny magnet and the north (often the red part of the compass) end is itself a north polarity. This means that this end would point towards a south pole of a magnet. From...

The article below is an excerpt from Discover magazine. What I don’t understand is the difference between the geometric magnetic and the magnetic north poles. From the article the North and South magnetic poles dips are not opposite of each other, so how is the geomagnetic pole calculated? Is...

http://cognizantwire.net/HTMLKHSL/ELECTRON/MAGNETIC/MAGNETIC.HTM http://www.chemistry.mcmaster.ca/esam/Chapter_3/section_3.html The first image shows the electron moving in a straight line, and in the second image it's moving in circles. In both images we see the north pole is up and south...

If the axis of the Earth is tilted at 23.4 degrees away from the North Ecliptic Pole, and the Ecliptic Plane is tilted at 60.2 degrees away from the North Galactic Pole, then why is the Earth's rotational axis inclined at 27.13 degrees relative to the Galactic Equator instead of (90-(60.2+23.4))...

New photo released today from NASA showing remarkable detail of a hexagon vortex ring at Saturn's North pole. http://www.space.com/24534-saturn-hexagon-vortex-nasa-cassini-photo.html Anyone see any papers explaining how the ring gets its shape?

In an AC generator, the side of the coil which cuts magnetic flux link from the north pole first becomes the live wire. Is there any reason behind that or is it just a natural phenomena? Thanx in advance...

Homework Statement You stand on a spring scale at the norh pole and again at the equator. Which scale reading will be lower, and by what percent will it be lower than the higher reading? Assume g has the same value at pole and equator. I have no need for the answer to this question but...

Hi You'all, Newbie here so no calculus or polysyllabics on the first date please. If I hold a bicycle wheel horizontally and spin it at the north pole, the torque from the Earth spinning and the torque from the bicycle wheel are along the same axis. Does this mean the wheel could float off...

Electricity and Magnetism (Polarity) Homework Statement Draw and indicate the current flow for the following situtions a) A north pole entering a coil wound counterclockwise b) A north pole exiting a coil wound counterclockwise Also is you could please explain coils, and...

Hi! I'm really excited about recent APoD picture, which shows Cassini's photo of a gigantic storm on Saturn's north pole. They also have an animation! I can't wait for a colour picture and videos. Meanwhile, since I still didn't state the purpose of this thread, what are the inner vortex...

I'm trying to find information on whether there has been summer ice at the North Pole the last few years. I've found a couple old articles that indicate scientists predicted no summer ice. Did this in fact happen and is it predicted again for this coming summer? Does that mean the North Pole...

1. Suppose Earth is a perfect sphere of radius 6,370km. If a person weighs exactly 600N at the north pole, how much will the person weigh at the equator? Givens: r = 6,370km = 6,370,000m Weight at north pole = mg = 600N Homework Equations ω_{av} = θ/t ƩF_{net} = ma a_{c} =...

South Pole colder than the north pole. why ? Hello .. I have a question .. Why the South Pole colder than the north pole ? (for the earth).

Hi all, I'd like to understand what would happen to a mass which is dropped at the north/south pole. Let's say you raised a mass to a certain height over a certain point, which we will call A. Point A is at the center of the north pole. The height at which the mass is raised is such that...

My question is: does a north pole attract or repel a piece of metal ? My attempted answer is: I think that the north pole alone would not attract a piece of metal. Instead it would require the north pole in conjunction with the south pole to attract a piece of metal. Can someone please confirm...

Hey guys, can anyone please tell me how to calculate time on the north pole? will there be any local time on north pole?

If You are suddenly teleported from the equator to the north pole. How fast and which way will you be spinning relative to your surroundings?

Would it be possible to colonize the North Pole? I was just wondering.

http://www.examiner.com/x-5182-Dallas-Weather-Examiner~y2009m12d10-Solar-systems-greatest-mystery-at-Saturns-north-pole If anyone here knows a lot about astronomy, and astro-physics, could you please try to scientifically explain this? The same shape appeared on Jupiter about a year ago...

Hi all! I'm not so good at physics so i decided to turn to you. So please help me. Homework Statement I have to calculate how the object (ball) moves when droped into the tunnel (as seen in the picture), and how long the journey takes. We assume that Earth is round and there is no friction and...

Hello, just wondering if you could apply Fg=mg to this. So the gravitational forces on the equator versus on the North Pole would differ and therefore, you would weigh more on the North Pole. According to what I found, the the gravitational acceleration is 9.78 m/s2 at the equator and 9.83 m/s2...

Hi, I am wondering what determines where these are on a magnetic object. For instance, on a sphere, why should there be a north pole and south pole at points rather than others. To make myself clearer, I am not asking why the south and north are opposite each other, but what determines those...

what would happen if the north pole was contained within the loop of the lhc at cern? the lhc at maximum speed can make a particle complete 7 loops in a second. the Earth rotates once every 24 hours. if the lhc was set up so the particle was made to move in the opposite direction to the...

Recently I read a research about Polar wins saying that million of kilos of our atmosphere (Hydrogen, Helium and Oxygen) left the planet via North Pole. May be possible to build a hot hydrogen balloon to leave the planet via North Polo Win??

Homework Statement A jet plane flies due south over the north pole with a constant speed of 500 mph. Determine the angle between a plumb line hanging freely in the plane and the radius vector from the center of the Earth to the plane above the north pole. Hint, assume that the Earth's angular...

Homework Statement Consider the radius of the Earth to be 6.38×106 m. What is the magnitude of the centripetal acceleration experienced by a person (a) at the equator and (b) at the North Pole due to the Earth's rotation? Homework Equations a = V^2 / r The Attempt at a Solution I...

Which compass pole points to Earth's magnetic North pole? 1.depends where compass is located 2. compass doesn't actually point at Earth's magnetic north pole 3. north 4. south I'm stumped by this question. I think either 2 or 3 is the right answer, because they both seem correct to me.

http://news.nationalgeographic.com/news/2008/06/080620-north-pole.html

why the aurora happens only in northern pole,why not in south pole...if it is because of the electrons of solar wind and Earth's magnetosphere then the same solar wind also got protons then why no aurora in south pole?

One quick question about forces i have. Would an appear appear to weigh heavier at the equator or at the north pole? I assume both places would have have the same weight. A little feedback would be appreciated

Homework Statement Explain how you would determine which was the north pole of a bar magnet, without using any other magnet. Homework Equations none The Attempt at a Solution If it's small enough you might be able to make it into a compass like object but if its heavy than the...

Why does the north pole of a magnet attract to the north geographic pole of the Earth?

a)Compute hte radial accleration of a point at the equator of the earth. b)repeat for the north pole of hte earth. Take the radius of the eartk to be 6370 km. so for a) i got 9.9337 m/s square which is right but for b) the answer is just zero why?

I havn't seen this posted here, but its a nice picture of ice on mars. http://www.esa.int/SPECIALS/Mars_Express/SEMGKA808BE_0.html Is this the result of a comet hitting Mars and depositing the ice?

I am trying to find what velocity and angle of launch is required for a projectile to be fired from the North pole and land somewhere on the equator. I was thinking 45 degrees with muzzle velocity 9401m/s but that sounds ridiculous. Also how much time would it be in the air for?

I am trying to find what velocity and angle of launch is required for a projectile to be fired from the North pole and land somewhere on the equator. I was thinking 45 degrees with muzzle velocity 9401m/s but that sounds ridiculous. Also how much time would it be in the air for?