Answer is A
Gravitational force is substantially weaker than the strong nuclear force.
The displacement of a spring is directly proportional to the applied force. The displacement of the given spring is 50.45 m.
<h2>
</h2><h2>
From Hooke's law:</h2>

Where,
- force applied = 88 N
- spring constant = 440 N/m
- displacement = ?
Put the values in the formula,

Therefore, the displacement of the given spring is 50.45 m.
Learn more about Hooke's law:
brainly.com/question/3355345
To solve the exercise it is necessary to apply the concepts of Mangenetic Force and Energy generated by electric potential.
By definition we know that the energy within an electron through voltage can be expressed as

Where,
e= charge of electron
V= Voltage
The kinetic energy of a moving system can be expressed as

Where,
m = mass
v = Velocity
For energy conservation we have to


Solving to find v,

On the other hand we have that the Magnetic Force can be expressed as,

Where,
q=charge of proton
v=velocity
B= Magnetic field
Angle between the magnetic field and the velocity vector (It is perpendicular in this case)
Using the previous equation from velocity in the Force equation we have,


PART A) Replacing the values to find the force we have,



Because they travel over the earths surface not in the earths surface