Answer:
a. True
Explanation:
Distance is described with only magnitude. It is defined as the total path covered by an object, in other words it is the length of a path followed by a particle.
Displacement is described with both magnitude and direction. It is distance traveled in a specified direction or change in position in some time interval.
Therefore, the correct option is " a. True"
Substances that move to the stronger parts of a magnetic field are termed paramagnetic substances; the atomic feature responsible for this property is presence of unpaired electrons in atoms.
<h3>What is a paramagnetic substance?</h3>
A paramagnetic substance is the substance that possess unpaired electrons that are heavily attracted in a magnetic field.
A magnetic field is defined as the field that exists around a magnet that produces a field of force.
Examples of paramagnetic substance include the following:
- aluminum,
- gold,
- copper.
- Chromium, and
- Manganese.
These substances are known as paramagnetic substances because they possess a high number of unpaired electrons.
Other properties of a paramagnetic substance include the following:
- They have a permanent dipole moment or permanent magnetic moment.
- They are weakly magnetized in the direction of the magnetizing field.
- They usually have constant relative permeability (μr) slightly greater than 1.
Therefore, Substances that move to the stronger parts of a magnetic field are termed paramagnetic substances; the atomic feature responsible for this property is presence of unpaired electrons in atoms.
Learn more about magnets here:
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When an electric current flows, it produces magnetic field. The strength of the magnetic field depends on the amount of charge flowing per second. The direction of the magnetic depends on the direction of flow of electric current. So, the direction of magnetic field changes when the direction of current/charges changes.
Answer: i would say true uwu
Explanation:<u><em>hope this helps! </em></u>
<u><em> ....Max- </em></u>
Answer:
2452.5 N/m^2
Explanation:
given:
density
=500kg/m^3
viscosity
= 10 Pa-s
diameter of tube= 2 m
and L be length
since gravity is the only force shear force will balance it
so we can write
mg= 
A= 
m= 
therefore
putting values we get

calculating we get
2452.5 N/m^2