The train would need the greatest amount of force due to weight! If you think of it, a baseball won't need much force to stop it, but if you have a heavy train, it will need excessive force to stop the train. The answer would be #3
I hope this answer helps!
Sorry if it doesn't make sense, as I don't know that much about physics! I am just thinking of what makes sense.
 
        
             
        
        
        
The maximum torque she can apply to the spark plug is 12.76 Nm.
<h3>
What is torque?</h3>
Torque is the rotational equivalent of linear force obtained by taking the product of force and the radius of the applied force.
 τ = Fr
where;
- F is the applied force 
- r is the radius
The maximum torque she can apply to the spark plug is calculated as follows;
 τ = 58 x (0.22)
 τ = 12.76 Nm
Thus, the maximum torque she can apply to the spark plug is 12.76 Nm.
Learn more about torque here: brainly.com/question/14839816
 
        
             
        
        
        
Answer:
The kinetic energy of the particle as it moves through point B is 7.9 J.
Explanation:
The kinetic energy of the particle is:
 
 
<u>Where</u>:
K: is the kinetic energy
 : is the potential energy
: is the potential energy
q: is the particle's charge = 0.8 mC
ΔV: is the electric potential = 1.5 kV                                    
 
 
Now, the kinetic energy of the particle as it moves through point B is:


Therefore, the kinetic energy of the particle as it moves through point B is 7.9 J.
I hope it helps you!       
 
        
             
        
        
        
Microwaves are transmitted by Radio Waves.
        
             
        
        
        
Answer:
bb kettle
Explanation:
it transfres electricsl to kinetic