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CSu ll: Chqn c6u td l&i driqg: Khi dtng ruQt mfy nfn thqi'lgc, nguoi ta ndn l€n mQt pittong
cd trifur kinh 1Ocm .Ap pu6t Auqc truy6n sang rn$t pit6rg khry
"( bdn kinh 20cm d€ nang mQt
v4t co !rgng luqng 5000N .L.1rc.ndr: l6n pittdng rhrirnhSt ft ntr6t'Uang
p,5ooon prigogg* *.dzsooN -
rt250N
Csu 12: MOt binh kin cllua lihi 6 nhiet dQ 30CK, 6p su6t 1,5atm Bo qua sg ddn nS cria binh.
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CSu 13: EIa.i phdng kin chua ktri c6 the tich.beng ni1au, q6 cril rn&''rhdng nhau Nhigt dQ t!
phdng I can hcrir nhiQt d$ & pfidng II Fhcng nlo c6 sd ph6n tu khf it hon?
,Kfl.aiph0ng nhu nhau *{phtinel
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C6u 19: Qhqn c6u ir& ldi drlng .ei6t kh6i lugng ri6ng cria nudc bi6n ld'i0' kg/5n' vd 6p suAt
khi quyen ldr.'p": tOs N/m2 .Ldy'g: 10m/s2.Ap suAt *niy tinh d tlO sdri h =2kq dudi mup
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C6u 20: Xdt mQt khOi lugrle khix6c diqh, ki5t'luan nio dring? _ ,
$Tangnhiet dQ tuyQt aOi + mn, d$ng thbi tdng th6 tich 2 l6n thi ep srdl t6ng 4Hn
' ,-)MTdng nhi6t d0 tuyqt AOi f mn, OOng ttrOi giam th6 tich 3 tAn tfri 6p,su6t.tdng 9 l6n.
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dO tuy$t dQi 2 Hn, {6ng.thOi lene th6 tich.z$n *riap su6i tarig 4 ffin
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Cfiu 24: fhOi luS,'ag ri6ng cua nu6c s6ng li p , gia:t6c trgng truorrg ld g EC do vin i6q ddng
chdy cua mQt sdng, ngudt ta dung m6t ting thiry tinh \bh:j ffu t
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rOi Aat i5ng.trong ddng chlry'sao cho ml-eng ong.vuong g6g v6i.ddng chiy DQ eao cQt nu6c
, Cfiu 25: Cho.biet k}roi tuqrng q"rol cu? cdc chdt 6xtr, heli, cabbon ldn luqt ld 3}glmol, 4g/ntol,
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.{s6 nguy€n tu chua 24 g caqbon -il S6 nguy€n tt chfiatrong 32 g 6xy
Cfiu 26: Chqn dilp iytdune ve 6p sudt trong ldng ch6t iOng ,
,A/"ShOi lugng ch6t l6ng tr,gng binh chria cang lcm thi 6p srdt chArl6ngo d6y binh cang lirn
XO ctng mQt dQ s6u h ,6p sudt trong ldirg c6c cf,:5t tOng ti lQ thuan vdi kh6i lugng ri6ng cAac!6tlbng
1{T.rong.long mQt ch'5t 16ng,6p su6t o dQ sdu 2hl6ngAp hai l+r ap su6td d0 s6u h .
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