打字猴:1.70099357e+09
1700993570 8-33 (1)l1=15c(m); (2)l2=24c(m); (3)l3=60c(m).
1700993571
1700993572 8-34 略.
1700993573
1700993574
1700993575 8-35 
1700993576
1700993577
1700993578 8-36 
1700993579
1700993580
1700993581 8-37 
1700993582
1700993583
1700993584 8-38 
1700993585
1700993586 8-39 19.7年.
1700993587
1700993588
1700993589 8-40 
1700993590
1700993591 8-41 n1=1,n2=n时,tanθr=(1-β2)sinθi/[(1+β2)cosθi-2β],β=v/c,
1700993592
1700993593
1700993594
1700993595
1700993596 8-42 (1)1.0×10-9N; (2)1.0×10-9N; (3)1.83×10-9s,1.50×10-9s.
1700993597
1700993598 8-43 1.24×10-10m.
1700993599
1700993600
1700993601 8-44 
1700993602
1700993603 8-45 (1)(1-0.96×10-10)c; (2)2.1×1010.
1700993604
1700993605 8-46 (1)34.0cm; (2)∑-粒子.
1700993606
1700993607 8-47 (1)3.3×103MeV; (2)向西偏转α=0.044rad.
1700993608
1700993609 8-48 略.
1700993610
1700993611
1700993612 8-49 (1)略; (2)
1700993613
1700993614 8-50 (1)略;
1700993615
1700993616 (2)参考答案:R=1.104×108m,M=5.11×1030kg;
1700993617
1700993618
1700993619
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