Tolong bantu aku dong . bingung nihhh! no 7 , 13 , 14
rikolaksani
14. P = -1/PR -2 = -1/PR 2 = 1/PR PR = 1/2 PR = 100/2 = 50 cm jadi jawabannya A. Miopi dan 50cm
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natasyaalika
No. 7. Ek = 1/2m.v2 1/2*4*10pangkat2. =200j. Ep =m.g.h =4*10*6 =240. EM = Ek+ep =440. Ep. M.g.h 440 =4.10.h 440 =40H. H =11. No. 13. V = 2s/t = 2. 360/0,5=1,440. JARAK RS=VT/2 1.440*0.6 =432. NO. 14. F = 1/2 m =0,5 m -> cm. =50cm (a).
-2 = -1/PR
2 = 1/PR
PR = 1/2
PR = 100/2 = 50 cm
jadi jawabannya A. Miopi dan 50cm