Because, beneath the paint or finish of the door, it is made of ferrous metal and magnets stick to anything like that, as they contain iron.
In general, steel nails will not remain "joined" if a magnet touching them is removed. It is important to note that nails affected by a magnet retain a weak "impression" of the field and remain slightly magnetic. But the magnetic field "impressed" on the nails will be quite small and will not hold the nails together once the magnetic is removed.
To corrode a magnet, particularly one made of ferromagnetic materials like iron or certain alloys, you can expose it to moisture and salts, which promote rusting. Additionally, immersing the magnet in acidic solutions can accelerate corrosion. It's important to note that corrosion can degrade the magnet's performance and structural integrity, leading to a loss of its magnetic properties.
The North Pole of a magnet is the end that seeks the Earth's magnetic North when freely suspended. In a bar magnet, this pole is typically marked with a "N." It is important to note that the Earth's magnetic North Pole is not the same as the geographic North Pole, as they are located at different points.
The field is strongest on the poles of the magnet (the ends of the magnet). More specifically, the 8 corners of the magnet are where the strongest magnetic field will occur. The weakest field occurs in the center of the magnet.
magnetic pull
If the magnets repel, it means that they positioned with same poles toward each other (North with North or South with South). If they attract each other, then it means that the near poles are different (North with South).
'On the front door was pinned a note.' Is a complete sentence.
In general, steel nails will not remain "joined" if a magnet touching them is removed. It is important to note that nails affected by a magnet retain a weak "impression" of the field and remain slightly magnetic. But the magnetic field "impressed" on the nails will be quite small and will not hold the nails together once the magnetic is removed.
Usually if there is water/ice through the door it will have a filter. Some that have ice makers will also have a filter. Even if your refrigerator does not have a filter but does have an ice maker consider installing one in the water supply line, the installation can be a DIY task. Note: As an example of the style of water filter I usually install is linked below.
You hold your finger on the note you wish to play wile the other hand strums that string
You will note that the iron filings are clustering around the magnet in a pattern.
The strength of a magnet can be affected by temperature. In cold temperatures, a magnet's strength increases, while in hot temperatures, the strength decreases. This is because temperature affects the alignment of atoms within the magnet, which in turn affects the magnet's ability to produce a magnetic field. An important idea to note is that extreme temperatures can demagnetize a magnet altogether.
the delivery man will leave a note on your door.
To properly execute a hold note in music notation, you simply hold the note for its full duration as indicated by the notation. This means sustaining the pitch for the specified length of time without playing any additional notes. The hold note is typically represented by a symbol such as a half note with a curved line extending from it, indicating the duration to be held.
in iron island its a magnet it one of the rooms(note not hidden)
fermata
the black notes that tell you how long you have to hold the note for or what note you have to play