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
Answer:
t = 16.5s
Explanation:
Given parameters:
Acceleration = 3.1m/s²
Initial velocity = 0m/s
Final velocity = 51m/s
Unknown:
Time taken = ?
Solution:
To solve this problem we need to reiterate that acceleration is the rate of change of velocity with time.
So;
Acceleration =
v is the final velocity
u is the initial velocity
t is the time taken
So;
3.1 =
3.1t = 51
t = 16.5s
Answer:
a) 0.138J
b) 3.58m/S
c) (1.52J)(I)
Explanation:
a) to find the increase in the translational kinetic energy you can use the relation
where Wp is the work done by the person and Wg is the work done by the gravitational force
By replacing Wp=Fh1 and Wg=mgh2, being h1 the distance of the motion of the hand and h2 the distance of the yo-yo, m is the mass of the yo-yo, then you obtain:
the change in the translational kinetic energy is 0.138J
b) the new speed of the yo-yo is obtained by using the previous result and the formula for the kinetic energy of an object:
where vf is the final speed, vo is the initial speed. By doing vf the subject of the formula and replacing you get:
the new speed is 3.58m/s
c) in this case what you can compute is the quotient between the initial rotational energy and the final rotational energy
hence, the change in Er is about 1.52J times the initial rotational energy