Plastic is what they are made of
        
             
        
        
        
Answer:
d₂ = 1.466 m
Explanation:
In this case we must use the rotational equilibrium equations
         Στ = 0
         τ = F r
we must set a reference system, we use with origin at the easel B and an axis parallel to the plank
, we will use that the counterclockwise ratio is positive
       + W d₁ - w_cat d₂ = 0
       d₂ = W / w d₁
       d₂ = M /m d₁
       d₂ = 5.00 /2.9    0.850
       d₂ = 1.466 m
 
        
             
        
        
        
Answer:
The negative electrode of a battery has an excess of positive charge
Explanation:
This is because in every battery, there is a negative electrode ( cathode ) and only positive charge is deposited on it.
 For other statements:
Batteries donot store electric charge but they store chemical energy
Some batteries donot use metals for the flow of electrons, but some use hydrogen gas at a pressure of 1 atmosphere.
 
        
             
        
        
        
Answer:
 1.67 A
Explanation:
Given that,
→ Power (P) = 400 W
→ Potential difference (V) = 240 V 
→ Current (I) = ?
The amount of current drawn will be,
→ P = V × I
→ I = P/V 
→ I = 400/240
→ I = 1.66666666667
→ [ I = 1.67 A ] 
Hence, the current drawn 1.67 A. 
 
        
                    
             
        
        
        
Answer:
A
Explanation:
Analytical people are less responsive to others. They hence tend to focus more on work than people and are less interested in leading, being happier to work by themselves. They may be prudent and systematic, making them good at analytic work. 
Some character traits of Analytical people
Focuses on work and working more than people
Likes to be correct and will take time to ensure this
Thoughtful, careful fact-oriented and precise
Good at problem-solving
Likes organization and structure
Avoids working in a group, preferring to work alone
Can be over-critical and unresponsive
Cautious in decision-making
When stressed may withdraw or become headstrong