In this problem we have the electric field intensity E:
E = 6.5 ×  newtons/coulomb
 newtons/coulomb
We have the magnitude of the load:
q = 6.4 ×  coulombs
 coulombs
We also have the distance d that the load moved in a direction parallel to the field 1.2 ×  meters.
 meters.
We know that the electric potential energy (PE) is:
PE = qEd
So:
PE = (6.4 ×  )(6.5 ×
)(6.5 ×  )(1.2 ×
)(1.2 ×  )
)
PE = 5.0 x  joules
 joules
None of the options shown is correct.
 
        
             
        
        
        
Answer:

Explanation:
We have to use the centripetal force  equation 

 we  need the radious so we have to isolate "r" and we get

replacing m=65 kg, v= 4.1 m/s and Fc=455N we get


The radius of the amusement park chamber is 2.4m
 
        
             
        
        
        
Btu/(lb-°F)	J/(g-°C i mean this is the correct answer
 
        
                    
             
        
        
        
Answer:
Usually when climbing, it's best to be in the small front ring and the largest back ring. If your cadence is about 100 rpm, then whatever gear you're in is fine. It depends on the road, but as long as your pedaling is at a level you're comfortable with, you're fine.
Explanation:
Google answer by the way.