帮个忙，谁知道物理上的N（力）与J（焦耳）的换算关系（紧急！！！！） eV（电子伏特，能量单位）和J（焦耳）怎样换算
\u5e2e\u4e2a\u5fd9\uff0c\u8c01\u77e5\u9053\u7269\u7406\u4e0a\u7684N\uff08\u529b\uff09\u4e0eJ\uff08\u7126\u8033\uff09\u7684\u5728\u56fd\u9645\u5355\u4f4d\u5236\u4e2d\uff0c
N\uff08\u725b\uff09\uff0c\u529b\u7684\u5355\u4f4d\u3002
J\uff08\u7126\uff09\uff0c\u529f\u548c\u80fd\u91cf\u7684\u5355\u4f4d\u3002
1ev=1.6x10^-19j\u3002
\u6839\u636e\u7535\u529f\u8ba1\u7b97\u516c\u5f0fW=qU,\u5728\u56fd\u9645\u5355\u4f4d\u5236\u4e2d\uff0c\u7535\u91cf\u5355\u4f4dc\uff0c\u7535\u538b\u5355\u4f4d v\uff0c1j=1cv, \u7535\u91cf\u5e38\u7528\u5355\u4f4de 1e=1.6x10^-19c\uff0c1ev=1.6x10^-19j\u3002
\u7535\u5b50\u4f0f\u7279\uff08electron volt\uff09\uff0c\u7b26\u53f7\u4e3aeV\uff0c\u662f\u80fd\u91cf\u7684\u5355\u4f4d\u3002\u4ee3\u8868\u4e00\u4e2a\u7535\u5b50\uff08\u6240\u5e26\u7535\u91cf\u4e3a1.6\u00d710-19C\u7684\u8d1f\u7535\u8377\uff09\u7ecf\u8fc71\u4f0f\u7279\u7684\u7535\u4f4d\u5dee\u52a0\u901f\u540e\u6240\u83b7\u5f97\u7684\u52a8\u80fd\u3002
\u7535\u5b50\u4f0f\u7279\u4e0eSI\u5236\u7684\u80fd\u91cf\u5355\u4f4d\u7126\u8033\uff08J\uff09\u7684\u6362\u7b97\u5173\u7cfb\u662f1 eV = 1.602176565(35)\u00d710-19 J
\u6269\u5c55\u8d44\u6599\uff1a
\u4e00\u4e2a\u7535\u5b50\u53ca\u4e00\u4e2a\u6b63\u5b50\uff08\u7535\u5b50\u7684\u53cd\u7c92\u5b50\uff09\uff0c\u90fd\u5177\u6709\u80fd\u91cf\u5927\u5c0f\u4e3a 511 keV \uff0c\u80fd\u5bf9\u649e\u6bc1\u706d\u4ee5\u4ea7\u751f 1.022 MeV \u7684\u80fd\u91cf\u3002\u8d28\u5b50\uff0c\u4e00\u4e2a\u6807\u51c6\u7684\u91cd\u5b50\uff0c\u5177\u6709\u80fd\u91cf 0.938 GeV \u3002
1 eV/c² = 1.783\u00d710-36 kg
1 keV/c²= 1.783 \u00d710-33 kg
1 MeV/c² = 1.783\u00d710-30 kg
1 GeV/c²= 1.783 \u00d710-27kg
\u82e5\u505a\u4e2a\u6bd4\u8f83\uff0c\u6838\u7206\u4e2d\u5e26\u7535\u7c92\u5b50\u7684\u80fd\u91cf\u8303\u56f4\u7ea6\u5728 0.3 \u81f3 3 MeV \u3002\u5927\u6c14\u4e2d\u5206\u5b50\u7684\u80fd\u91cf\u7ea6\u4e3a 0.03 eV \u3002
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1-\u7535\u5b50\u4f0f\u7279
W（J）=F（N）S（m）做的功J等与受到的力和在力的方向上移动的距离
绛旓細鍦ㄥ浗闄呭崟浣嶅埗涓锛孨锛鐗锛夛紝鍔鐨勫崟浣嶃侸锛堢劍锛夛紝鍔熷拰鑳介噺鐨勫崟浣嶃
绛旓細W=FSW琛ㄧず鍔,F琛ㄧず鍔,S琛ㄧず浣嶇ЩW鍗曚綅鏄疛,F鍗曚綅鏄N,S鍗曚綅鏄痬鎵浠=W/F=J/N=m
绛旓細鐗╀綋闂村姏鐨勪綔鐢ㄦ绘槸鐩镐簰鐨勩 鍔涚殑鍗曚綅:鐗涢】(N)銆傛祴閲忓姏鐨勪华鍣:娴嬪姏鍣;瀹為獙瀹や娇鐢ㄥ脊绨хГ銆 鍔涚殑浣滅敤鏁堟灉:浣跨墿浣撳彂鐢熷舰鍙樻垨浣跨墿浣撶殑杩愬姩鐘舵佸彂鐢熸敼鍙樸 鐗╀綋杩愬姩鐘舵佹敼鍙樻槸鎸囩墿浣撶殑閫熷害澶у皬鎴栬繍鍔ㄦ柟鍚戞敼鍙樸 鈷夊姏鐨勪笁瑕佺礌:鍔涚殑澶у皬銆佹柟鍚戙佷綔鐢ㄧ偣鍙仛鍔涚殑涓夎绱犮 鍔涚殑鍥剧ず,瑕佷綔鏍囧害;鍔涚殑绀烘剰鍥,涓嶄綔鏍囧害銆 鈷...
绛旓細1N=1kg*10m/ss 5*10^5N=500000N 15t=15000kg鈥斺150000N<500000N 浣犺鍙互閫氳繃鍚楋紵
绛旓細鎽╂摝鍔涙槸10N,姘村钩鍚戝彸锛屽悎鍔涗负12.2N,鍒檃=f/m=2.44m/s2,鏂瑰悜姘村钩鍚戝彸 褰撻熷害鍒0鏃朵负鏈澶т綅绉伙紝Vt2-V02=2aS,s=7.4m
绛旓細2.浣犵敤20N涓10N鐨鍔涘悓鏍烽兘娌℃湁鎺ㄥ姩锛岀‘瀹炴鏃剁墿浣撻兘鏄钩琛＄殑锛岀敤10N鐨勫姏鎺ㄥ緱鏃跺欐懇鎿﹀姏灏辨槸10N锛岀敤20N鐨勫姏鎺ㄥ緱鏃跺欐懇鎿﹀姏灏辨槸20N锛涚劧鑰屼箣鎵浠ョ敤涓や釜涓嶅悓澶у皬鐨勫姏閮芥病鏈夋帹鍔紝鍘熷洜鏄繖閲岄偅涓姏閮藉皬浜庣墿浣撶殑鏈澶ч潤鎽╂摝鍔涳紙鍏充簬鏈澶ч潤鎽╂摝鍔涚殑瑙ｉ噴浣犲彲浠ヨ嚜宸辨煡涓鏌ワ級锛屾墍浠ヤ綘浠佸笀璇寸殑娌￠敊銆
绛旓細澶т簬鎴栫瓑浜30N銆傝В鏋愶細30N鈥斺斺斿鏋滄寕鐨勭墿浣撳皬浜庢垨绛変簬10N鏃讹紝鍒欑ず鏁颁负30N銆傦紙鍥犱负锛氶鐩腑宸茬粡璇翠簡鍦紱鍙︿竴绔姞涓涓30N鐨勫姏锛鎵浠ュ脊绨хГ鐨勭ず鏁版渶灏忎负30N锛涗綘鍙兘浼氶棶锛屽鏋滄寕鐨勭墿浣撲笉鍒10N鍛?濡傛灉涓嶅埌10N锛岄偅涔堝脊绨хГ灏变笉浼氶潤姝㈣屾槸娌跨潃30N鍔鐨勬柟鍚戝姞閫熻繍鍔級澶т簬30N鈥斺斺斿鏋滄寕鐨勭墿浣撳ぇ浜10...
绛旓細(1)鐗╀綋鍙楅噸鍔沵g銆佹枩闈㈡敮鎸鍔汵銆佹媺鍔汧鍜屾粦鍔ㄦ懇鎿﹀姏f锛岀敱鐗涢】绗簩瀹氬緥寰 F锛峟-mgsin30掳=ma f=F-m(gsin30掳+a)=6-0.5*(5+1)=3N 鍦ㄥ垰鎾ゆ秷澶栧姏F鏃讹紝f鏂瑰悜娌挎枩闈㈠悜涓嬶紝鍚堝姏涓 f+mgsin30掳=ma1 a1=3/0.5+5=11m/s^2,鏂瑰悜娌挎枩闈㈠悜涓 锛2锛夌墿浣撹繕鑳戒笂婊戠殑璺濈涓簊锛屽垯 s=v^2/...
绛旓細鍒濅笁涓婄殑鎵鏈鐗╃悊鍏紡锛氶噸鍔汫锛圢锛 G=mg; m锛氳川閲 ; g锛9.8N/kg鎴栬10N/kg 瀵嗗害蟻锛坘g/m3锛 蟻= m/V m锛氳川閲;V锛氫綋绉 鍚堝姏F鍚堬紙N锛 鏂瑰悜鐩稿悓锛欶鍚=F1+F2 鏂瑰悜鐩稿弽锛欶鍚=F1鈥擣2 鏂瑰悜鐩稿弽鏃讹紝F1>F2 娴姏F娴(N) F娴=G鐗┾擥瑙 ;G瑙嗭細鐗╀綋鍦ㄦ恫浣撶殑閲嶅姏 娴姏F娴(N) F娴=G鐗;...
绛旓細杩欎袱绉嶆儏鍐垫湰璐ㄥ尯鍒槸浣犳柦鍔犵粰鐗╀綋鐨勬帹鍔涘氨绛変簬鐗╀綋鎵鍙楃殑澶栧姏锛屼粠鍔涚殑鎬ц川涓婅灞炰簬寮瑰姏锛岃岄噸鍔涙槸鐢变簬鍦扮悆鐨勫惛寮曚骇鐢熺殑锛屽睘浜庡湴鐞冨紩鍔涚殑涓涓垎鍔涳紙鍙︿竴涓垎鍔涙彁渚涚墿浣撹窡鐫鍦扮悆鍋氬渾鍛ㄨ繍鍔紝鍗冲悜蹇鍔涳級锛閲嶅姏鍔犻熷害g鐨勫崟浣嶆槸N/Kg锛岀敱姝ゅ彲瑙佸畠鏄敤鏉ユ弿杩版煇涓湴鍖洪噸鍔涗綔鐢ㄧ殑寮哄急绋嬪害锛屾槸鏈夊浐瀹氱殑鐗╃悊鎰忎箟鐨...
