Answer:
True
Explanation:
This is a true statement my friend :)
 
        
                    
             
        
        
        
Answer:
A is the answer .(A) is correct 
 
        
             
        
        
        
Answer:
<h2>89,460 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
mass = Density × volume
From the question we have
mass = 8.52 × 10,500 
We have the final answer as
<h3>89,460 g</h3>
Hope this helps you
 
        
             
        
        
        
The rule that is used to get the strength of magnetic field at the center of solenoid (B) is:
B = <span>µ x n x I where:
</span>µ is the permeability of the medium where the solenoid is based. In this problem, the medium is air which means that µ = <span>µ </span><span>o = 4 pi x 10^-7 Tm/A
</span>I is the current passing (I = 4 amperes)
n is the number of turns per unit length (5000 turns)
Substituting in the mentioned equation, we find that:
B = 4 x 3.14 x 10^-7 x 5000 x 4 = 25.132 mT
        
             
        
        
        
I dont know but i know i dont lnow if this is true but the gravity is slowly going away every 4 year i dont know i think.