BOB体育彩票ж°ҙгҖҒз”өи§ЈиҙЁе№іиЎЎзҡ„и°ғиҠӮ,йғҪжңүиӮқи„ҸеҸӮдёҺгҖӮжҙ»еҠЁж—¶дә§з”ҹзғӯзҡ„дё»иҰҒеҷЁе®ҳжҳҜиӮҢиӮү,иҖҢе®үйқҷж—¶жңәдҪ“зҡ„зғӯйҮҸдё»иҰҒз”ұеҶ…и„ҸжҸҗдҫӣгҖӮиӮқи„ҸжҳҜдҪ“еҶ…д»Ји°ўжңҖж—әзӣӣзҡ„еҷЁе®ҳ,е®үйқҷж—¶,иӮқи„ҸиЎҖжөҒжё©еәҰжҜ”дё»еҠЁи„үй«ҳ0.4в„ғ-0.8в„ғ,иҜҙBOB体育彩票:传送带系统产生热量怎么算(дј йҖҒеёҰдёӯзҡ„иғҪйҮҸй—®йўҳжҖ»з»“)еҠйҖҹж—¶й—ҙt=v/a=v/ОјgеҠйҖҹдҪҚ移x1=1/2at^2=v^2/2ОјgдјйҖҒеёҰдҪҚ移x2=vt=v^2/Ојgж»‘еҠЁж‘©ж“ҰеҠӣеҜ№зү©дҪ“еҒҡжӯЈеҠҹw1=fx1ж»‘еҠЁж‘©ж“ҰеҠӣеҜ№дјйҖҒеёҰеҒҡиҙҹеҠҹw2=-fx2(fx2жҳҜз”өеҠЁжңәеӨҡ
1、1.1иҜҫйўҳиҰҒжұӮж–ҷеңәзү©ж–ҷдјйҖҒжҺ§еҲ¶з”өи·Ҝи®ҫи®Ў,е…·дҪ“иҰҒжұӮеҰӮдёӢ:и®ҫи®ЎйҮҮ用继з”өеҷЁ-жҺҘи§ҰеҷЁж–№ејҸиҝӣиЎҢжҺ§еҲ¶,жҺ§еҲ¶зі»з»ҹжңүдёӨжқЎдәӨжөҒз”өжңәжӢ–еҠЁ,з”өеҠЁжңәзҡ„йўқе®ҡеҠҹзҺҮдёә5.5kw,е…¶жҺ§еҲ¶иҰҒжұӮдёә
2、жүҖд»Ҙз”өеҠЁжңәеҜ№дјйҖҒеёҰеҒҡеҠҹ=ж‘©ж“ҰеҠӣеҜ№дјйҖҒеёҰеҒҡеҠҹ=дјйҖҒеёҰеҜ№зү©дҪ“еҒҡеҠҹ=0.5mпјҲv1+v2пјү^2ж‘©ж“ҰеҠӣдә§з”ҹзҡ„зғӯйҮҸ=ж‘©ж“ҰеҠӣеҒҡеҠҹ=дјеҠЁеёҰеҜ№зү©дҪ“еҒҡеҠҹ-зү©дҪ“еҠЁиғҪеҸҳеҢ–йҮҸ=0.5mпјҲv1+v2пјү^2
3、(2)ж»‘еқ—е’ҢдјйҖҒеёҰз»„жҲҗзҡ„зі»з»ҹеӣж‘©ж“Ұдә§з”ҹзҡ„зғӯйҮҸдёә14J.еҲҶжһҗжҖ»з»“гҖӮеңЁдјйҖҒеёҰзҡ„aз«Ҝж—еҲқйҖҹйҮҠж”ҫдёҖдёӘиҙЁйҮҸдёәm1kgзҡ„ж»‘еқ—еҸҜи§ҶдёәиҙЁзӮ№еңЁе°Ҷж»‘еқ—ж”ҫеҲ°дјйҖҒеёҰзҡ„еҗҢж—¶еҜ№ж»‘еқ—ж–ҪеҠдёҖдёӘеӨ§е°Ҹдёәf5nж–№
4、еёҰдёҠ,жҜҸж¬Ўж”ҫдёҖдёӘ,g=10m/s(1)иҫҫеҲ°зӣёеҜ№йқҷжӯўеҗҺзҡ„зӣёйӮ»дёӨдёӘе·Ҙ件зҡ„й—ҙи·қО”s(2)й•ҝж—¶й—ҙе·ҘдҪң,дјйҖҒеёҰдёҠе·Ҙ件зҡ„дёӘж•°(3)жҜҸдёҖдёӘе·Ҙ件еңЁзӣёеҜ№ж»‘еҠЁж—¶дә§з”ҹзҡ„зғӯйҮҸQ(4)дёҚи®ЎиҪ®иҪҙеӨ„зҡ„ж‘©
5、з„ҠжқЎз”өеј§з„ҠдёҺж°”з„ҠзӣёжҜ”жңүеҰӮдёӢзү№зӮ№:йҰ–е…Ҳ,з”ұдәҺзғӯжәҗ(з”өеј§)жё©еәҰй«ҳ,зғӯйҮҸйӣҶдёӯ,еӣжӯӨз„ҠжҺҘйҖҹеәҰеҝ«,з”ҹдә§зҺҮй«ҳ,зғӯеҪұе“ҚеҢәе°Ҹ,з„ҠжҺҘеҸҳеҪўе°Ҹ;е…¶ж¬Ў,з„ҠжқЎиҚҜзҡ®зҶ”еҢ–еҗҺдә§з”ҹж°”дҪ“е’ҢзҶ”жёЈ
6、дёҖеҢ…ж–№дҫҝйқў(80.0е…Ӣ)еҗ«жңүзғӯйҮҸ378еӨ§еҚЎ,йңҖиҰҒж…ўи·‘56.4еҲҶй’ҹж¶ҲиҖ—е®ҢгҖӮж–№дҫҝйқўжҳҜжҖҺд№ҲеҒҡеҮәжқҘзҡ„йҰ–е…Ҳ,еңЁйқўзІүдёӯеҠе…Ҙ33%зҡ„ж°ҙ,йҮҮз”Ёе’Ңйқўжңәе°Ҷйқўе’ҢеҘҪ,然еҗҺе°Ҷйқўж”ҫе…ҘеҺӢ延жңәдёӯеҺӢжҲҗ
еҫҲеӨҡйӨҗйҰҶзҡ„дёҠиҸңд№жғҜжҳҜ,зӯүеҲ°жңҖеҗҺдәҶжүҚдёҠжұӨ,并且еҫҖеҫҖжҳҜе’ёе‘іжұӨгҖӮеӨ§йҮҸиҸңиӮҙе·Із»ҸжҸҗдҫӣдәҶжһҒеӨҡзҡ„зӣҗеҲҶе’ҢжІ№и„Ӯ,еҰӮжһңеҶҚе–қе’ёе‘іжө“жұӨ,еҝ…然дјҡеўһеҠзӣҗеҲҶе’ҢзғӯйҮҸгҖӮжӯЈзЎ®зҡ„еҒҡжі•жҳҜ,йӨҗBOB体育彩票:传送带系统产生热量怎么算(дј йҖҒеёҰдёӯзҡ„иғҪйҮҸй—®йўҳжҖ»з»“)еҪ“жҲBOB体育彩票‘们еҗғдёңиҘҝж—¶,зўіж°ҙеҢ–еҗҲзү©дёӯдә§з”ҹзҡ„и‘Ўиҗ„зі–е’Ңзі–еҲҶжҲҗдёә第дёҖиғҪйҮҸжқҘжәҗгҖӮиӮқи„Ҹе°Ҷи‘Ўиҗ„зі–д»Ҙзі–еҺҹзҡ„еҪўејҸиҝӣиЎҢеӮЁеӯҳ,并е°Ҷд№ӢйҮҠж”ҫеҲ°иЎҖж¶Ідёӯ,д»ҘдҝқиҜҒиә«дҪ“зҡ„иҝҗдҪңгҖӮеҸҜд»Ҙе°ҶжӮЁзҡ„иЎҖз®ЎжғіиұЎжҲҗдёҖдёӘеӣӣйҖҡе…«иҫҫзҡ„