table 4.interaction between two permanent bar magnets what i did to the pair of magnets to cause interaction and observed the ef
fect/s ( attracted or repeled
2 answers:
The two permanent magnets can interact with each other so that the two magnets are brought closer to the opposite poles so that they will attract each other
<h3>Further explanation </h3>
Magnets are objects that can attract other objects. Objects that are brought close to a magnet are attracted because they have a magnetic force
A magnetic field is a magnetic region that is still a magnetic force, so objects placed in a magnetic field will be attracted to a magnet
The strongest magnetic force is at the magnetic ends. This magnetic tip is called a magnetic pole consisting of the north pole and south pole
The magnetic north pole will point towards the north pole of the earth and the magnetic south pole will point towards the south pole of the earth.
Similar poles (north and south poles) will pull each other, while similar poles (north-north pole and south pole with the south) will repel each other
An iron or steel can be made into a magnet by rubbing, using an electric current or by induction.
Magnetic properties can be lost if magnets are heated or hit
Materials whose magnetic properties are easily lost are called temporary magnets such as iron and those that are hard to lose are called permanent magnets such as steel
The nature of materials that are exposed to or interact with magnets can give different responses. Some are drawn very strong, weak or even rejected. the nature of this material is classified into 3 namely ferromagnetic (easily drawn), paramagnetic (weakly drawn), and diamagnetic (slightly resisted)
So that the two permanent magnets can interact with each other, then the two magnets are brought closer to the opposite poles so that they will pull together
<h3>Learn more </h3>
The relationship between electric and magnetic fields
The direction of the magnetic field
Magnetic polish
Keywords: magnetic poles, magnetic fields, north pole, south pole, repel, attract
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Answer:
(a) Time t = 16.46 sec
(b) Time t =13.466 sec
(c) Deceleration =
Explanation:
(a) As the train starts from rest its initial velocity u = 0 m/sec
Acceleration
Final speed v = 80 km/hr
From first equation of motion v =u+at
So
(b) Now initial speed u = 22.22 m/sec
As finally train comes to rest so final speed v=0 m/sec
Deceleration
So
(c) We have given that initial velocity = 80 km/hr = 22.22 m/sec
Final velocity v = 0 m/sec
Time t = 8.30 sec
So acceleration is given by
As acceleration is negative so it is a deceleration