Answer:
a jak to chces vidieť nápis podrobnejsie
Idhdhdhdhdjdfjfjnfnfnffnfnfnfnfnfjfnfjfoddidjdifjdjffucjfjffjfuf
<h2>
Answer:</h2>
C.
<h2>
Explanation:</h2>
This is what we call a permanent magnet. By the way, the magnetic phenomena were first observed about 2500 years ago near the ancient city of Magnesia, what is today Manisa, located in western Turkey, when people saw fragments of magnetized iron. So <em>what happens if you cut a magnet in half? </em>Well, a magnet has two ends, the first one is called a north pole or N pole while the other end is a south pole or S pole, so if you break a bar magnet, each piece has a north and south pole, no matter the size of each new bar although the smaller the piece, the weaker its magnetism. This is true because unlike electric charges, you always find magnetic poles in pairs, that is, ¡they can't be isolated! The option is C. because in the great bar the north pole is to the left while the south pole is to right.
Answer:
I = 
we see the intensity decreases with the inverse of the distance squared
Explanation:
Intensity is defined as power per unit area,
I = P / A
in this case we have that the sound is emitted in a spherical form therefore the area is
A = 4 pi r2
therefore the intensity is
I =
as we see the intensity decreases with the inverse of the distance squared
The net force of a pair of balanced forces is zero
