Answer:
one has only one ring and the other has many other lines
Explanation:
the Rutherford Ford model is the one that only has on line and all other atoms are inside
both the more modern one we use has several rings and only two can fit in the very inner rings
Answer:

Explanation:
Mechanical Energy=Potential Energy+ kinetic Energy

To calculate Kinetic Energy:-

To calculate Potential Energy:-

therefore,

The skydiver's total mechanical energy is 459365J
(a) The force required to remove the sheet increases with increase in speed due to change in magnetic flux.
(b) The area in the magnetic field changes as the sheet is being put in between the poles. Thus, a force would be required to put the sheets.
<h3>Change in magnetic flux </h3>
When the sheet is pulled out, from the electromagnet there is change in magnetic flux given as follows;
Ф = BA
where;
- B is magnetic field
- A is area
emf = dФ/dt
F = qVB
Thus, the force required to remove the sheet increases with increase in speed due to change in magnetic flux.
Also, the area in the magnetic field changes as the sheet is being put in between the poles. Thus, a force would be required to put the sheets.
Learn more about magnetic flux here: brainly.com/question/10736183
#SPJ1