Hi There! :)
An electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06eV.Determine the energy of the photon, in joules.
<span>kg=15000J</span>
It's the first one. Believe me I always missed this question in class, never is ask a question first. Hypothesis is first.
Answer:
radius of circular path becomes doubled
Explanation:
As the charged particle is moving in a magnetic field then it experiences a centripetal force.
So, the magnetic force is balanced by the centripetal force
![q\times v\times B = \frac{mv^{2}}{R}](https://tex.z-dn.net/?f=q%5Ctimes%20v%5Ctimes%20B%20%3D%20%5Cfrac%7Bmv%5E%7B2%7D%7D%7BR%7D)
where, m be the mass of charged particle, q be the charge and v be the velocity, B be the magnetic field, R be the radius of circular path.
![R = \frac{mv}}{qB}](https://tex.z-dn.net/?f=R%20%3D%20%5Cfrac%7Bmv%7D%7D%7BqB%7D)
Here we observe that the radius of the path is directly proportional to the velocity of the charged particle.
R ∝ v ..... (1)
let the new radius be R' as the velocity is doubled
R' ∝ 2 v ..... (2)
Divide equation (2) by equation (1) we get
R' = 2 R
Thus, the radius of circular path becomes doubled.
Be better. if the ramp had some sort of smoothing to it, it would make what ever your roll down it go much faster. sorry for the short answer