The answer is b !!!! Hope it helps
        
             
        
        
        
Answer:
No
Explanation:
The fastest recorded time for a person to run 100 metres is 9.58 seconds, which is the equivalent of 10.4 metres per second 
 
        
                    
             
        
        
        
"D. Magnetic and electrical forces are similar because they are both related to the interactions between charged particles" best describes how the forces relate.
        
                    
             
        
        
        
Answer:
All
Explanation:
I'm not sure what you meant but Newton's third law which basically states that every action has an equal and opposite reaction applies to <em>all</em> objects. So I think the answer is all.
 
        
             
        
        
        
30grams
Explanation:
If a reaction starts with 30grams then the reaction should end with 30grams. 
This in conformity with the law of conservation of mass. 
- The law states that "in an isolated system, mass is neither created nor destroyed during chemical transformation".
- Mass is the quantity of matter contained in a substance. 
- In chemical reactions, the mass of reactants must always be the same with the mass of the product baring any loss. 
- In an isolated system, there is no exchange of energy and mass. 
- Chemical systems are usually treated as isolated systems in which mass is conserved. 
Learn more: 
Chemical laws brainly.com/question/5896850
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