2. Particle A with mass 9.0 [kg] is at rest relative to the lab frame. What isthe particle's energy and momentum as measured by a rocket frame moving to the +r-direction with speed 0.80 relative to the lab frame?A. E = 9.0 [kg), p, = 7.2 (kg]В. Е — 9.0 [kg], р, — —7.2 [kg]C. E = 15 (kg], Pr =12 [kg]D. E = 15 [kg), Pr =-12 (kg]3. A laser pointer pulses out violet light with frequency, 4.20 x 1014 [m-1].How much energy does each laser photon carry?A. 2.78 x 10-19 (kg]В. 9.28 х 10-28 [kg|(kg]D. 5.26 x 10-57 (kg]С. 1.58 х 10-48

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