양자역학 chapter 7

양자역학 chapter 7

양자역학 chapter 7.hwp

본문 7.17)The pilot of a rocket moving at a velocity 0.8c relative earth observes a second rocket approaching in the opposite direction at a velocity of 0.7c What does an observer on earth measure for the second rockets velocity? u prime _ x = u _ x -v over 1-( v over c ^ 2 )u _ x # ```````````= 0.8c-0.7c over 1-( 0.7c TIMES 0.8c over c ^ 2 ) =0.227c 7.19)An observer O is moving along the x-x axis with a speed of c/2 with respect to another observer O. observer O measures a particle moving in the positive y-direction with a speed c over sqrt 3 . Calculate the velocity of the particle as measured by O? u _ x = u _ x+v over 1+( v over c ^ 2 )u _ x = 0- 1 over 2 c over 1-0 =- 1 over 2 c# u _ y = u _ y sqrt 1-( v ^ 2 over c ^ 2 ) over 1+( v over c ^ 2 )u _ x = 1 over sqrt 3 TIMES sqrt 1-(0.5) ^ 2 over 1+0 = 1 over 2 c# u= sqrt u _ x ^ 2 +u _ y ^ 2 = sqrt ( 1 over 2 c) ^ 2 +( 1 over 2 c) ^ 2 = sqrt 2 over 2 c# tan varphi = u _ y over u _ x = 1 over 2 over - 1 over 2 =-1# THEREFORE varphi =tan ^ -1 (-1)# ``````````````=-45 ^ DEG `or``135 DEG 7.24)What is the Doppler Shift in 5500뫍 light if the source approaches the observer with velocity of 0.8c? lambda = lambda _ 0 sqrt 1+( v over c ) over 1-( v over c ) # 5500 ANGSTROM = lambda _ 0 sqrt 1+0.8 over 1-0.8 # 5500 ANGSTROM over sqrt 1+0.8 over 1-0.8 = lambda _ 0 =1833 ANGSTROM # THEREFORE lambda _ 0 RARROW 1833 ANGSTROM -5500 ANGSTROM =-3667 ANGSTROM 하고 싶은 말 좀 더 업그레이드하여 자료를 보완하여, 과제물을 꼼꼼하게 정성을 들어 작성했습니다. 위 자료 요약정리 잘되어 있으니 잘 참고하시어 학업에 나날이 발전이 있기를 기원합니다 ^^ 구입자 분의 앞날에 항상 무궁한 발전과 행복과 행운이 깃들기를 홧팅 키워드 역학, 양자역학