什么叫水的密度和质量

芒果体育app下载(ж–Үжң«йҷ„зӯ”жЎҲ)2022еұҠеҲқдёӯзү©зҗҶиҙЁйҮҸдёҺеҜҶеәҰзҹҘиҜҶзӮ№жҖ»з»“е…Ёйқўж•ҙзҗҶ.pdfжҜҸж—ҘдёҖз»ғж–Үжң«йҷ„зӯ”жЎҲ)2022еұҠеҲқдёӯзү©зҗҶиҙЁйҮҸдёҺеҜҶеәҰзҹҘиҜҶзӮ№жҖ»з»“е…Ёйқўж•ҙзҗҶеҚ•йҖүйўҳ1гҖҒеҜҶеәҰзҹҘиҜҶдёҺз”ҹжҙ»芒果体育app下载:什么叫水的密度和质量(иҙЁйҮҸеҜҶеәҰзҡ„е®ҡд№ү)дёӨдёӘе®Ңе…ЁзӣёеҗҢзҡ„еңҶжҹұеҪўе®№еҷЁеҲҶеҲ«зӣӣиҙЁйҮҸзӣёзӯүзҡ„ж°ҙе’Ңй…’зІҫ,ж°ҙе’Ңй…’зІҫеҜ№е®№еҷЁеә•йғЁзҡ„еҺӢејәе“ӘдёӘеӨ§дёӨдёӘе®Ңе…ЁзӣёеҗҢзҡ„еңҶжҹұеҪўе®№еҷЁ(з”ІгҖҒд№ҷ)еҲҶеҲ«зӣӣиҙЁйҮҸзӣёзӯүзҡ„ж°ҙе’Ңй…’зІҫ(ж°ҙзҡ„еҜҶеәҰжҜ”й…’зІҫеӨ§1)ж°ҙе’Ңй…’

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ж№жҚ®芒果体育app下载д»ҘдёҠд»Ӣз»Қ,жҲ‘们еҸҜд»ҘдёҖдёӘз®ҖеҚ•зҡ„з”өеӯҗз§Өе°ұеҸҜд»ҘйүҙеҲ«дәҶ:иҝҷз§Қж–№жі•еҸҜд»ҘйүҙеҲ«д»»дҪ•зҺүеҷЁзҡ„еҜҶеәҰгҖӮиҝҷйҮҢжҲ‘们йҡҸдҫҝжүҫдёҖдёӘзҺүеҷЁжқҘиҜ•иҜ•гҖӮ第дёҖгҖҒйҰ–е…ҲжҲ‘们еә”иҜҘеҮҶеӨҮд»ҘдёӢиҝҷеҮж·дёңиҘҝ:з”өеӯҗз§ӨгҖҒдёҖ件зҺүеҷЁ

иҙЁйҮҸеҜҶеәҰзҡ„е®ҡд№ү

ж•ҙдҪ“иҙЁйҮҸеҪ“然е°ұдјҡеҸҳе°Ҹ.8;иҖҢй…’зІҫжҢҘеҸ‘еҗҺ,ж°ҙзҡ„еҜҶеәҰжҳҜ1,й…’зІҫдјҡеҸ‘еҮәеҺ»еҗҺ,ж··еҗҲзү©дёӯж°ҙзҡ„жҜ”дҫӢе°ұдјҡеҒҸеӨ§,жүҖд»Ҙй…’зҡ„еҜҶеәҰдјҡеҸҳеӨ§й…’жҳҜй…’зІҫе’Ңж°ҙзҡ„ж··еҗҲзү©,й…’зІҫзҡ„еҜҶеәҰжҳҜ0д»»еҠЎеҚеқ‘2,и°ҒзҹҘйҒ“ж°ҙе’Ңй…’жңүд»Җ

гҖҗйўҳзӣ®гҖ‘еҰӮеӣҫжүҖзӨә,ж°ҙе№іжЎҢйқўдёҠз”ІгҖҒд№ҷдёӨдёӘиҙЁйҮҸзӣёеҗҢзҡ„еңҶжҹұеҪўи–„еЈҒе®№еҷЁеҲҶеҲ«иЈ…жңүиҙЁйҮҸзӣёзӯүзҡ„ж°ҙе’Ңзӣҗж°ҙ,е°ҶдёӨдёӘе®Ңе…ЁзӣёеҗҢзҡ„е®һеҝғе°ҸзҗғAе’ҢBеҲҶеҲ«ж”ҫе…ҘдёӨдёӘе®№еҷЁдёӯ,е°Ҹзҗғйқҷжӯўж—¶ж¶ІдҪ“еқҮжңӘжәўеҮәгҖӮе·І

1гҖҒжҜ«еҚҮе’Ңе…Ӣзҡ„жҚўз®—е…¬ејҸжҳҜ:иҙЁйҮҸ=еҜҶеәҰ*дҪ“з§ҜгҖӮиҝҷжҳҜдёӨдёӘдёҚеҗҢзҡ„еҚ•дҪҚ,иҰҒзҹҘйҒ“еҜҶеәҰжүҚиғҪжҚўз®—гҖӮ2гҖҒиҙЁйҮҸ(дёҖиҲ¬жҳҜе…ӢгҖҒеҚғе…ӢдёәеҚ•дҪҚ)=еҜҶеәҰ*дҪ“з§Ҝ(дёҖиҲ¬жҳҜжҜ«еҚҮгҖҒеҚҮгҖҒз«Ӣж–№зұідёәеҚ•дҪҚ

12гҖҒиҙЁйҮҸдёә54g,дҪ“з§Ҝдёә20cm3зҡ„йҮ‘еұһеҜҶеәҰжҳҜе°Ҷиҝҷеқ—йҮ‘еұһеҲҮжҺүдёҖеҚҠ,еү©дёӢзҡ„еҜҶеәҰжҳҜkg/m313гҖҒдёӨдёӘзӣёеҗҢзҡ„жқҜдёӯеҲҶеҲ«иЈ…жңүиҙЁйҮҸзӣёеҗҢзҡ„ж°ҙе’Ңй…’зІҫ,ж¶Ійқўй«ҳзҡ„жҳҜдҪ“з§ҜзӣёеҗҢзҡ„е®һеҝғй“Ғзҗғе’Ң芒果体育app下载:什么叫水的密度和质量(иҙЁйҮҸеҜҶеәҰзҡ„е®ҡд№ү)д»Ҙ1г芒果体育app下载ҺҸй…’и®ЎйҮҸеҚ•дҪҚзҡ„иҜқ,е…¶дёӯй…’зІҫеҗ«55%,д№ҹе°ұжҳҜж°ҙеҗ«45%гҖӮеҚі550gй…’зІҫ,450gж°ҙ,еҸҜд»ҘжҹҘеҲ°й…’зІҫзҡ„еҜҶеәҰжҳҜ0.8g/cm3,жүҖд»Ҙй…’зҡ„дҪ“з§ҜжҳҜ550/0.8=687.5cm3,иҖҢж°ҙзҡ„дҪ“з§ҜжҳҜ450/1=450cm3,жүҖд»Ҙ55еәҰй…’зҡ„еҜҶ