Answer:
fundamental formula for density = Kg/m³
Explanation:
density = mass/volume
 
        
             
        
        
        
It probably does. I'm not 100% sure about it, but a thicker wire would increase the number of positive and negative charges in it.
        
             
        
        
        
Answer:
<h2>Force due to biceps is given as</h2><h2>

</h2>
Explanation:
For balancing the force we know that
Torque due to weight hold on his hand = torque due to force applied by biceps
So here we will have

so we have


 
        
             
        
        
        
Using coils of fewer turns on the electromagnet