Physics help! A muon and an antimuon are moving in opposite directions with velocities of -0.8 c and 0.8 c, respectively.?

A muon and an antimuon are moving in opposite directions with velocities of -0.8 c and 0.8 c, respectively. When they collide, they can annihilate each other and turn into two photons. Both muon and antimuon have a mass of 105.66 MeV/c2. What is the total energy before the collision? What is the energy of each... show more A muon and an antimuon are moving in opposite directions with velocities of -0.8 c and 0.8 c, respectively. When they collide, they can annihilate each other and turn into two photons. Both muon and antimuon have a mass of 105.66 MeV/c2.

What is the total energy before the collision?

What is the energy of each photon?

What is the wavelength of each photon?
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