Torque =  r x F
 
|F| =  mg =  60 * 10 N = 600 N ( assuming g ~ 10m/s^2)
 
distance of fulcrum = torque / Force = 90/600 m = .15 m.
 
        
             
        
        
        
Answer:
The direction of the force will be towards the east 
Explanation:
From the question we are told that  
     The direction of the  downward 
Generally according to Fleming's right-hand rule(
           Thumb -  direction of force
            Middle finger -  direction of current 
            Index finger -  direction of the magnetic field 
) and the fact that the earth magnetic field acts  from south to north with respect to the four cardinal points then the direction of the  force will be toward the east with respect to the four cardinal point on the earth 
 
        
             
        
        
        
Answer:
the time Joshua travels 1 mile is 12.5 min
Explanation:
Let's start by finding the distance traveled on each lap,
Let's reduce everything to the SI system
     R = 400 m
     d = 1 mile (1609 m / 1 mile) = 1609 m
     L = 2 pi R
     L = 2 pi 400
     L = 2513 m
Let us form a rule of proportions if 2 turns of Julian is 3 turns Joshua, for 1 turn of Joshua how many turns Julian took
     lap Julian = 2/3 turn Joshua
Let's calculate what distance is the same for both of them since they are on the same track
     1 lap = 2513 m
     d. Julian = 2/3 2513 m
     d Julian = 1675 m distance Joshua
Let us form the last rule of three or proportions if 1609 m you travel in 12 min how long it takes to travel 1675 m
     t Julian = 1675/1609 12
     t = 12.5 s
Since this is the distance Joshua travels, this is the time Joshua travels 1 mile
 
        
                    
             
        
        
        
The correct answer is:- 
alternating.
        
             
        
        
        
Answer:
Yes, it is reckless. This is because it is the responsibility of the pilot to make sure that the direction of the propeller blast is away from people or other aircraft and in a safe direction.
Explanation:
Yes, it is reckless to let the propeller blast face people and other aircraft. This is because it is the responsibility of the pilot to make sure that the direction of the propeller blast is away from people or other aircraft and in a safe direction. People and other aircraft can be injured by the debris and the rocks that are scattered by the engine of the aircraft.