}ĿijУ СMǰƏSͬW˽ưȰѰl(f)͵ļZʳľƾľƾbҊDʾҪҪ¼ӟ偌Hһ]HcݔͨȻע냦ƹޣеİƵĶȔ(sh)ܸһ㲻ֱҪcmˮܳPИI(y)Ҏ(gu)£ƵȔ(sh)ָ
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𰸡10.461kg2880
}֪39ȡָ20z϶ȕr100mlƾĺ(sh)39mlt50039ȡоƾweVƾ539ml195ml195cm3ɦɵãƾ|(zh)飺mƾƾVƾ0.8g/cm3195cm3156gˮ|(zh)飺mˮˮVˮˮ(VVƾ)1g/cm3(500195)cm3305gtƵ|(zh)飺mmˮ+mƾ305g+156g461g0.461kg(2)}֪60ȡָ20z϶ȕr100mlƾĺ(sh)60mlt50060ȡоƾweVƾ2560ml300ml300cm3ɦ
ɵƾ|(zh)飺mƾ2ƾVƾ20.8g/cm3300cm3240gˮ|(zh)飺mˮ2ˮVˮ2ˮ(V2Vƾ2)1g/cm3(500300)cm3200gtƵ|(zh)飺m䣽mˮ2+mƾ2200g+240g440g0.44kgƵwe飺V䣽500ml500cm3ƵܶȞ飺ѡ
0.88g/cm30.88103kg/m3.
Ŀ Դ }ͣ
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}Ŀ҇F·̾һ˂иӷСtĸĸF܇300km/hٶ߅ƽF܉һͨ܇120km/hٶҲСtl(f)F(xin)Լ^ͨ܇õĕrg16sͨ܇酢Сt_____xϡСt酢ͨ܇_____xϡͨ܇LȞ_____m
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}ĿС֪u͵ܶСAƽͲ
1ƽˮƽ_δa ̎l(f)F(xin)ָָڷֶȱP҂ȣҪʹMƽƽĸ xҡ{(dio)
2ƽy՟|(zh)17gڟеmuyu͵Ŀ|(zh)DʾеuȫͲu͵weDʾtu͵|(zh) gu͵ܶȞ kg/m3
3С@Nyuܶȕ xƫƫС
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ڌһ ƽyˮĿ|(zh)m1
һͬbMuƽyu͵Ŀ|(zh)m2
܄tu͵ܶȱ_ʽ= ֪ˮܶȞˮ
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}Ŀ}ģСͬWڌWܶȕrһЩ_
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C. ͬN|(zh)MɵČwͬB(ti)r|(zh)cwe
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}Ŀij^ͧ䲿ּg(sh)±gȡ10N/kg
ƷQ | XX^ͧ |
ͧ|(zh) | 900kg |
l(f)әCݔ | 45kW |
d˔(sh) | 20 |
45km/h |
1ijΈF꠳^ͧ2Сr·Ƕ
2Oÿλ˿͵ƽ|(zh)60kg^ͧMd˿͕rܸǶ٣
3ԓͧلҰl(f)әC_ݔܵˮǶ
4ԓͧͣڵϕrc|e12m2 ͧĉǶ
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}ĿF(xin)֙Co˂SLrg֙CĻҕ½PڽҕۼCԭD_
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}ĿСyʳܶȲE£ƽ{(dio)(ji)ƽ⣻{(dio)ƽ{(dio)ú|(zh)20gĿן(ni)myß͵Ŀ|(zh)39g(ni)͵ͲxͲ(ni)͵we20mltyܶȞ顡________g/cm3 ˷yܶ________С//ڣ挍ܶȣ
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