Why did Katherine’s break take so long?

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Drag each item into the proper state of matter category.