a) The uncertainity relation between energy and time is ∆t*∆E ∼ h/4pi = 5.27*10^-35
Then ∆E = 5.27*10^-35/10^-23 = 5.27*10^-12 J
b) The uncertainity relation between momentum and position is ∆x*∆p ∼ h/4pi = 5.27*10^-35
Then ∆p = 5.27*10^-35/5*10^-15 = 1.054*10^-20
Then minimum K.E . = (∆p)^2/2m = (1.054*10^-20 )^2/(2*1.67*10^-27) = 3.33*10^-14 J
The subatomic particle called the Delta (1232) is an excited state ot the proton and has...
Model a proton as three quarks confined by a one-dimensional potential a.) If the well has width L, estimate the uncertainty in the momentum of an up quark confined in the well 7 b.) Find the minimum kinetic energy associated with the up quark and find the size of the well that will give the quark a kinetic energy of about 300 Mev Model a proton as three quarks confined by a one-dimensional potential a.) If the well has width...
A proton (rest mass is 1.673 times 10^-27 kg, rest energy is 938.3 MeV) has kinetic energy of 2500 MeV. find its momentum (in kg-m/s) (use relativistic relations) find its wavelength if one measures the proton's position to an uncertainty delta x of + l-5.60 times 10^-14 m. find the minimum possible uncertainty in the proton's momentum A panicle of mass 6.646 times 10^-27 kg is confined to a one-dimensional box of length 3.0 times 10^-14 m. What wavelength photon...
The discovery of the antiproton p (a particle with the same rest energy as a proton, 938 MeV, but with the opposite electric charge) took place in 1956 through the following reaction: p + p → p+p+p+¯ p, in which accelerated protons were incident on a target of protons at rest in the laboratory. The minimum incident kinetic energy needed to produce the reaction is called the threshold kinetic energy, for which the final particles move together as if they...
17. The distance between an electron and a hole across a band gap following electronic excitation is called A. Bohr exciton radius B. Bohr radius C. quantum D. conduction band 18. When a photon strikes an atom, the energy is absorbed by A. a proton which moves to an excited state. B. a neutron which causes the nucleus to split. C. an electron which moves from the ground to an excited state. D. nothing. A photon is never absorbed by...