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ID: 2109044 • Letter: #
Question
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"font-size:12pt;">The Large Hadron Collider (LHC) is used to
collide protons at very high energies in order to produce
subatomic particles like quarks. If the protons used in experiments
at the LHC have a kinetic energy of 7 TeV, find the speed and the
momentum of the protons.
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"font-size:12pt;">Compare this result to the momentum of a mosquito
(1 milligram) flying at 1 m/s.
Explanation / Answer
0.5 mv^2=7*10^12 eV
v^2=14*10^12/9.11*10^-31
v=3.92*10^21 m/s
momentum = mv=1.67*10^-27*3.92*10^21=6.54*10^-6 kgm/s
Momemtum of mosqutio = 10^-3*1 = 10^-3kgm/s
ratio of momentums is 0.00654
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