Plastic is what they are made of
        
             
        
        
        
Explanation:
We know that the relation between volume and density is as follows.
       Volume = 
So,       V = 
                = 
Now, we will calculate the area as follows.
       Area = 
                = 
                = 
Formula to calculate the resistance is as follows.
          R = 
              = 
              = 
Thus, we can conclude that the resistance of given wire is  .
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Answer:
If thermal energy is the motion energy of the particles of a substance, which has more thermal energy—the cup of hot tea or a spoonful of hot tea? It makes sense that the more particles of a substance you have, then the more thermal energy the substance has. The cup of hot tea would have more thermal energy, even if the temperature of the tea is the same in the cup and in the spoon. But which cools down the quickest (has the highest rate of thermal energy transfer)—the tea in the cup or the tea in the spoon? If I have fewer particles of the same substance, then the rate of thermal energy transfer is faster. The tea in the spoon would lose thermal energy more rapidly. So the amount of a substance you have is one factor that affects the rate of thermal energy transfer.
Explanation:
 
        
             
        
        
        
Answer:
Angular acceleration will be 
Explanation:
We have given that mass m = 0.18 kg 
Radius r = 0.32 m 
Initial angular velocity 
And final angular velocity 
Time is given as t = 8 sec
From equation of motion 
We know that 


So angular acceleration will be 