6 2 2 .* T om izgM chdan d astlab sovuq suv, s o ‘n gra s h u n c h a
m assali issiq suv to m iz ild i. A gar b irin ch i h o ld a 40 to m c h i,
ikkinchi h o ld a esa 48 to m c h i to m iz ilg a n boMsa, suvn in g sirt
ta ra n g lik k o effitsiy e n ti q a n d a y o ‘zgarg an va n e c h a m a rta
o ‘zgargan? S uvning zichligi ikkala h o ld a b ir xil d eb hisoblang.
62 3 . Z k o ‘rsatk ich li A p ru jin ag a osilgan d iam etri 34 m m
boMgan in g ich k a К sim h alq a suvli В idishga b o tirila d i (91-
rasm ). K o ‘rsa tk ic h n in g v aziy atin i S sh k alad a belgilab olib,
91
idish a sta-sek in pastga tu sh irila d i. B unda p ru jin a c h o ‘ziladi.
H a lq a n in g suyuq lik d an ajralish p ay tid a y an a k o ‘rsa tk ich n in g
vaziyati sh k alad a b elgilanadi. A gar b u n d a p ru jin a 31 m m ga
c h o lzilgan b o ‘lsa, suvning sirt tara n g lik koeffitsiyenti u c h u n
q an d a y q iy m at o lin ad i? P ru jin a n in g bikrligi 0,5 N /m . A gar
idishga suv o ‘rniga kerosin quyilgan boN sa, p ru jin a q a n c h ag a
c h o ‘zilgan b o ‘la r edi?
62 4 . N im a u c h u n b a 'z i o ‘sim lik barglaridagi m ayda s h u d
ring to m c h ila ri sh a rc h a sh ak lid a b o ‘la d i-y u , b o sh q a b a ’zi
o ‘zim lik la rn in g b arglarini esa sh u d rin g y u p q a q a tla m tarz id a
q o p lay d i?
625. G ‘o z nega suvdan «quruq» ch iq a d i?
626. N im a u c h u n m oyli b o ‘yoq b ilan b o ‘y ash d an a w a l
a lif surtiladi?
627. P sixrom etrdagi ikkita te rm o m e trd a n b irin in g rezer-
vuari m a to bilan o ‘ralgan boMib, u ch i suvli idishga b o tiril-
gan . N im a u c h u n suv uzluksiz bugN anib tu rish ig a q aram ay ,
m a to d o im o n a m boMadi?
628. T e m p e ra tu ra ortish i bilan tu p ro q d a suvning k ap illar
k o ‘tarilish balandligi q a n d a y o ‘zgaradi?
629. R adiusi 0,5 m m boMgan k ap illar n a y c h a d a suyuqlik
11 m m koMarildi. A gar bu su y u q lik n in g sirt taran g lik k o ef
fitsiyenti 22 m N /m boMsa, u n in g zichligi q a n c h a boMishini
top in g .
630. Sim obli b a ro m e tr naych asin in g d iam etri 3 m m . A gar
sim o b n in g k ap illar pasayishini hisobga olsak , b a ro m e trn in g
k o ‘rsatishiga q an d a y tu zatish kiritish lozim ?
631. T u rli d iam etrli tu ta sh k ap illar n a y c h a la r suv bilan
toM dirildi. N a y c h a la rd a g i suv isitilg an d a suv sath lari farqi
q an d a y o ‘zgaradi?
632. D iam etrla ri tu rlic h a boMgan suvga tu sh irlg an ikkita
k ap illar n ay ch ad ag i sa th la r farqi 2,6 sm boMdi. S h u n a y
c h a la r spirtga tu sh irilg a n d a sa th la r farqi 1 sm boMdi. S uvning
sirt taranglik koeffitsiyentini bilgan holda spirtning sirt taranglik
k o effitsiyentini toping.
633. D ia m e tri 0,5 m m boMgan k ap illar n a y c h a d a k o ‘ta -
rilgan suvn in g m assasini toping.
6 3 4 . B ir- b ir id a n 0 ,2 m m m a s o fa d a p a r a lle l tu rg a n
p la stin k a la r o ra sid a suv q a n d a y b alan d lik k a koM ariladi?
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