An insulator is not a good source for heat or electricity to move through. Wood is an example of an insulator. The opposite of insulator is conductor. An example of a conductor is metal.
Answer:


Explanation:
As the disc is unrolling from the thread then at any moment of the time
We have force equation as

also by torque equation we can say



Now we have



Also from above equation the tension force in the string is


Answer:
1.2 102j
Explanation:
because it is the most important for me
D) activation gate - opens during depolarization
Answer:
Vibrations
Explanation:
That is why when under water it sounds muffled and you cannot hear clearly.