<u>Answer:</u>
<em>The correct equation for measuring the average microscopic weight  for 3 isotopes is multiply the rate of abundance by each weight and add them.</em>
<u>Explanation:</u>
 To calculate the average microscopic mass of element using weights and relative abundance we have to follow the following steps.
- Take the correct weight of each isotope (that will be in decimal form)
- Multiply the weight of each isotope by its abundance
- Add each of the results together.
<em>This gives the required  average microscopic weight of the three isotopes.</em>
 
        
             
        
        
        
5m
Explanation:
Given parameters: 
Weight of object = 50N 
Work done in lifting object = 250J 
Unknown:
Vertical height = ? 
Solution: 
The work done on an object is the force applied to lift a body in a specific direction. 
    Work done = force x distance
   Weight is a force in the presence of gravity; 
   Work done = weight x height of lifting 
Height of lifting = 
  Height of lifting =  = 5m
 = 5m
The vertical height through which the object was lifted is 5m
learn more: 
Work done brainly.com/question/9100769
#learnwithBrainly
 
        
             
        
        
        
Answer:
In the electric field, the like charges repel each other, and the unlike charges attract each other, whereas in a magnetic field the like poles repel each other and the unlike poles attract each other.
Explanation:
 
        
             
        
        
        
Answer:
It has 5 I hope this helps you