The train’s average speed is 80km/h
        
                    
             
        
        
        
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Answer</h2>
Causality means reason behind the process
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Explanation</h2>
In the scientific inquiries, scientists perform different activities with the help of previous knowledge and scientific ways to renew the knowledge or discover the new ideas. It is a common belief that in every process that is happening in nature have many functions and reasons behind it. Scientists are always in the struggle to find these reasons and their importance regarding their happenings. When the scientists are in hurry to know about the causality, it means they are helping the scientific knowledge with the discovery of new reasons for happens.
 
        
             
        
        
        
Answer:
false
Explanation:
It doesn't the copper wire wouldn't even be pulled by the magnet at all and the electricity would stay inside of the the force of the copper wire
 
        
             
        
        
        
Answer:
923.44N
Explanation:
Obviously Fn cannot equal Fg since the elevator is moving up  
Where Fn is the force read on the scale
 Fg is gravitational force=mg=77.6 x 9.8=760.48N
So we use this equation:  
Fnet = Fn - Fg  
ma = Fn - mg
77.6 x 2.1 = Fn – 760.48
162.96N = Fn – 760.48N  
923.44 N = Fn
The answer is 923.44 N