Answer:
It is a measure of the electric force per unit charge on a test charge.
Explanation:
The magnitude of the electric field is defined as the force per charge on the test charge. 
Since we define electric field as the force per charge, it will have the units of  force divided by the unit of charge. This implies that the SI unit of electric field is given as Newton/Coulomb (N/C).
 
        
             
        
        
        
Answer:
v₀ = 280.6 m / s
Explanation:
 we have the shock between the bullet and the block that we can work with at the moment and another part where the assembly (bullet + block) compresses a spring, which we can work with mechanical energy, 
We write the mechanical energy when the shock has passed the bodies
    Em₀ = K = ½ (m + M) v²
We write the mechanical energy when the spring is in maximum compression

½ (m + M) v² = ½ k x²
Let's calculate the system speed
    v = √ [k x² / (m + M)]
    v = √[152 ×0.78² / (0.012 +0.109) ]
    v = 27.65 m / s
This is the speed of the bullet + Block system
Now let's use the moment to solve the shock
Before the crash
    p₀ = m v₀
After the crash

The system is formed by the bullet and block assembly, so the forces during the crash are internal and the moment is preserved
  
   m v₀ = (m + M) v
   v₀ = v (m + M) / m
let's calculate
v₀ = 27.83 (0.012 +0.109) /0.012
   v₀ = 280.6 m / s
 
        
             
        
        
        
Answer:
8 mph
Explanation:
4 miles in half hour so you add 4 more for the second half
 
        
             
        
        
        
Answer:
162500000.   
Explanation:
 Given that
Diameter of the wire , d= 1.8 mm
The length of the wire ,L = 15 cm
Current ,I = 260 m A
The charge on the electron ,e= 1.6 x 10⁻¹⁹ C
We know that Current I is given as

I=Current
q=Charge
t=time
q= I t
q= 260 m t 
The total number of electron = n
q= n e

n=162500000 t

The number of electron passe per second will be 162500000.
 
        
             
        
        
        
Answer:
The answer to your question is: mass = 38.93 kg
Explanation:
Data
mass = ?
Weight = 382 N
gravity = 9.81 m/s2
Formula
Weight = mass x gravity
mass = weight / gravity
mass = 382 / 9.81         substitution
mass = 38.93 kg           result