A particle with a charge-to-mass ratio of 4.8x1011 C/kg starts at rest and is accelerated by 2.6x108 m/s2 over a distance of 1.0 km, after which it maintains constant velocity.
The particle then encounters a magnetic field with a strength of 0.12 mT. Assuming no
other forces are acting on the particle, what is the radius of its path?
Your
0 4.5x103 m
O 4.5x10 m
1.3x10-2 m
O 1.3x10-3 m
Clear answer

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )