Homework Help: physics

Posted by matin on Tuesday, May 15, 2012 at 7:35pm.

The Bohr model of the hydrogen atom consists of an electron travelling in a circular orbit of radius 5.29 x 10-11 m around a proton. The attraction between the two gives the electron the centripetal force required to stay in orbit. Calculate the:
a. Electric force between the two particles.
b. Speed of the electron.
c. Electric field the electron experiences.
d. Electric potential difference the electron experiences.

physics - Elena, Wednesday, May 16, 2012 at 8:36am
k =9•10^9 N•m²/C²,
e =1.6•10^-19 C.
r = 5.29•10^-11 m ,
m(electron) = m = 9.1•10^-31 kg

a.F =k•e²/r²,
m•v²/r = k•e²/r²,
b. v=sqrt(k•e²/m•r),
c. E =k•e/r²,
d.φ = - k•e/r,
physics - myra, Wednesday, May 16, 2012 at 9:32am
Thanx elena for all the answers :-)

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