(ii) Two Rockets, ecach 10000 cm long when they are measured at rest, move toward each other with speeds of 0.9c with respect to the earth (where c is the speed of light). (a) How long is each Rocket as measured by the observer on the earth? (b) Using velocity addition formula how fast is traveling cach rocket as calculated by an observer on one of the rockets? (c) How long is one rocket when measured by an observer on one of the rockets?
(ii) Two Rockets, ecach 10000 cm long when they are measured at rest, move toward each other with speeds of 0.9c with respect to the earth (where c is the speed of light). (a) How long is each Rocket as measured by the observer on the earth? (b) Using velocity addition formula how fast is traveling cach rocket as calculated by an observer on one of the rockets? (c) How long is one rocket when measured by an observer on one of the rockets?
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Solve the part b just part b
Transcribed Image Text:2. (i) An electron with rest energy 0.511 MeV travels with speed u = 0.7c. Find (a) its total
energy (b) its kinetic energy, and (c) the magnitude of its momentum.
(ii) Two Rockets, cach 10000 cm long when they are measured at rest, move toward each
other with speeds of 0.9c with respect to the earth (where c is the speed of light).
(a) How long is each Rocket as measured by the observer on the earth?
(b) Using velocity addition formula how fast is traveling each rocket as calculated by an
observer on one of the rockets?
(c) How long is one rocket when measured by an observer on one of the rockets?
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