Answer:
-611.32 N/C
0.43723 m
Explanation:
k = Coulomb constant = 
q = Charge = -4.25 nC
r = Distance from particle = 0.25 m
Electric field is given by

The magnitude is 611.32 N/C
The electric field will point straight down as the sign is negative towards the particle.

The distance from the electric field is 1.71436 m
 
        
                    
             
        
        
        
Pressure is the force per unit area. This means that the pressure a solid object exerts on another solid surface is its weight in newton’s divided by its area in square metres
        
             
        
        
        
The Arctic Ocean is the smallest ocean. It is more than five times smaller than Indian and Atlantic Oceans.
        
             
        
        
        
5kg
50cm
500in
Hope this helped good luck to you