An unstable particle with a mass equal to 3.34 x 10-27 kg is initially at rest. The particle decays into two fragments that fly off with velocities of 0.975c and -0.870c, respectively. Find the masses of the fragments. (Hint: Conserve both mass-energy and momentum.) m(0.975c) = m(-0.870c) 1.574E-27 X Your response differs from the correct answer by more than 100%. kg 1.802E-27 x Your response differs from the correct answer by more than 100%. kg

HINT (a) What is the momentum (in kg · m/s) of a proton moving at 0.886c? |kg · m/s (b) At what speed (in m/s) will a particle's relativistic momentum equal twice its classical momentum? |m/s

3 J = (the rest energy is 3 c2 A spacecraft moves at a speed of ().8c relative to Earth, and shots a bullet with rest mass of M Joules), and its velocity relative to Earth is in the same direction as the spacecraft. The kinetic energy of the bullet relative to Earth is 5 J. What is the total energy (in Joule) of the bullet relative to the spacecraft?

A particle has a rest mass of 6.35 × 10¯ kg and a momentum of 5.39 × 10-¹8 kg.m/s. Determine the total relativistic energy E of the particle. 1.67 ×10-⁹ E = Incorrect Find the ratio of the particle's relativistic kinetic energy K to its rest energy Erest. K 1.93 Erest || Incorrect