Answer:
600m
Explanation:
30×20 at a constant speed is 600m.
 
        
             
        
        
        
A voltmeter is the instrument used to measure a potential difference between two points in an electric circuit
        
                    
             
        
        
        
Answer:

Explanation:
From the question we are told that:
Mass 
Charge 
Velocity 
Length of Wire 
Current 
Generally the equation for Magnetic Field of Wire B is mathematically given by
  
  
  
Generally the equation for Force on the plane F is mathematically given by
  
Therefore
  
  
  
  
Therefore in Terms of g's
  
  
 
        
             
        
        
        
The answer is 9.8 ms^-2, because there is only one force acting on the object so the acceleration will be numerically equal to the gravitational field strength.
        
             
        
        
        
The position of the centre of gravity of an object affects its stability. The lower the centre of gravity (G) is, the more stable the object. The higher it is the more likely the object is to topple over if it is pushed. Racing cars have really low centres of gravity so that they can corner rapidly without turning over.
 
Increasing the area of the base will also increase the stability of an object, the bigger the area the more stable the object. Rugby players will stand with their feet well apart if they are standing and expect to be tackled.