Ngày tải lên :
12/07/2014, 10:29
... ti thi im t = 2s k t a bt u quay l A kgm2/s B kgm2/s C kgm2/s D kgm2/s HT - P N M 0 12 1B,2D,3B,4A,5C,6D,7D,8C,9D ,10 D ,11 B , 12 B ,13 B ,14 A ,15 C ,16 A ,17 D ,18 B ,19 B ,20 D ,21 A ,22 A ,23 C, 24 C ,25 A ,26 C ,27 B ,28 A ,29 D,30B,31D,32C,33B,34C,35B,36B,37B,38B,39D,40A, ... tiu Cõu 29 Mt vt dao ng iu hũa x = 10 cos10 t ( cm ) Vn tc ca vt cú ln bng 50 ( cm s ) ln th 2 0 12 k t t = ti thi im Cõu 22 A 2 413 12 s B 12 07 / 12 s C 12 05 12 s D 2 415 12 s t in ỏp xoay chiu cú ... Cõu 29 : Mt vt dao ng iu hũa x = 10 cos10 t ( cm ) Vn tc ca vt cú ln bng 50 ( cm s ) ln th 2 0 12 k t t = ti thi im A 2 413 12 s B 12 07 12 s C 12 05 12 s D 2 415 12 s Gii cõu 29 : Chn B v A vmax = 10 0...