Answer:
Entropy is increasing. Entropy is decreasing.
Explanation:
The Entropy doesn't change.
It is an example of rolling friction because balls roll.
Answer is ROLLING
Answer:
2653 turns
Explanation:
We are given that
Diameter,d=2 cm
Length of magnet,l=8 cm=
1m=100 cm
Magnetic field,B=0.1 T
Current,I=2.4 A
We are given that
Magnetic field of solenoid and magnetic are same and size of both solenoid and magnetic are also same.
Length of solenoid=
Magnetic field of solenoid

Using the formula

Where 

<span>electromagnetic.........</span>