Question

In the LHC, protons are accelerated to a total energy of 7.40 TeV. The mass of proton is 1.673 × 10−27 kg and Planck’s constant is 6.626 × 10−34 J·s.

1.What is the speed of these protons? ____C

2. The LHC Tunnel is 27.0 km in circumference. As measured by an Earth observer, how long does it take the protons to go around the tunnel once?___us

3.in the reference frame of the protons, how long does it take the protons to go around the tunnel once?____ns

4. What is the de Broglie wavelength of the protons in Earth's reference frame?___m

5. How fast would a mosquito of mass 1.00 mg be moving if its kinetic energy is 6.40 TeV?______m/s

Answer 1