It is possible that one magnet is stronger than the other one. It would have to be about 4 times as strong to achieve this result.
north and north or south and south (red, red) (blue, blue)
The needle in compasses is magnetic and is drawn to the Earth's magneticism in the North. When the needle is placed near a metal, as all magnets are, attracted to metals.
I am not aware of magnets having any effect on goldfish. Maybe a large electro magnet created by passing windings around a tank then applying current through the winding could have an effect but a simple magnet placed on or into a fish tank should have no effect on the fish whatsoever.
If tea starts to boil when a spoon is placed in it, it is likely that the tea has already reached boiling temperature but has nothing to create bubbles with because the glass is so smooth and the smooth is more rough.
2.0×104
magnets are strong and if you put a cell phone near it, it might damage it
If you placed two magnets with their north poles end to end they would repel each other.
Assuming you mean "foot of the ladder": Sqrt(144 - 81) ie sqrt 63 = 7 feet 11¼ inches. If you mean what you wrote then zero distance!
Yes. I used a wheel and placed magnets all around it, then I spun the wheel and placed another magnet in front of the wheel and thought that the wheel would keep spinning due to the magnets repelling each other but it didn't work.
Seven 9 inch squares placed end to end would form a rectangle that was still 9 inches wide but 7 x 9 = 63 inches long. The distance around such a rectangle would measure its perimeter. Two sides are 9 inches long and two sides are 63 inches long. The perimeter would be 63 + 63 + 9 + 9 = 144 inches.
Car magnets are completely safe to use on a car. The metal of the magnet does not interact with the paint of the car. Car magnets are specifically designed to be placed on a car with no damage.
Because of the magnetic field
taga Velez kasa?
42.4264 inches
It is simple for those who are familiar with shell theorem. F= (1/4x pi x mu) x m1x m2 /r2 where m1 and m2 are the magnetic strength of two materials and r is the distance between them.
no, although separate they will be able to lift a larger mass, together the magnetic fields will cancel out.
Yes. The "magnets" are not conventional magnets, like the ones you may use at home, on a maglev train. Their position and control of them is extremely critical for train operation so these are engineered to only be installed and function in one way.