请帮我先翻译再解答一下这道物理题，谢谢
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1.22 \u5428\u7684\u5c0f\u8f7f\u8f66,\u4ece\u65f6\u901f90\u516c\u91cc\u5230\u505c\u6b62\u7684\u8fc7\u7a0b\u4e2d,\u8f66\u4e0a\u7684\u4e58\u5750\u8005\u627f\u53d7\u7684\u52a0\u901f\u5ea6
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答案：q的量纲=L^(1/2)M^(1/2)
用单位和尺寸表达了电场的单位和维度的费用,如果我们把介电常数的空无量纲为数量。
负责在表达分解的机械产品概念设计尺寸、基本的数量,
绛旓細绛旀锛歲鐨勯噺绾=L^(1/2)M^(1/2)
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绛旓細a circular plastic disk of radius r=2cm has a uniformly distributed charge q=2c on one face. a circular ring of width 0.5 cm is centered on that face, with the center of that width at radius r=1cm, in coulombs, what charge is contained within the width of the ring ...
绛旓細鑾夎帀瀹夛紙40kg锛夊湪鍏夋粦鐨勫啺闈笂鎺ヤ綇浜嗗ス鐨勬鍦ㄤ互2m/s鐨勯熷害琛岃繘鐨勭嫍锛15KG锛夈傝帀鑾夊畨鍦ㄥ熷姪濂圭殑鐙椾箣鍚庨熷害鏄灏戯紵瑙ｇ瓟锛40*0+15*2=X*(15+40)X=0.55m/s
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绛旓細鍋囪娌℃湁绌烘皵闃诲姏, 涓轰粈涔堜互姣忕8鍏噷鐨勯熷害姘村钩灏勫嚭鐨勭偖寮逛笉浼氳惤鍒板湴鐞冭〃闈?
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