Vật lý: những câu hỏi, đáp lý thú


 
!"#"$%&!#" '
()*+*",-!./0123&!#"
 (4#5!!.1
647089:,$; "
 !<(:=9*->-+("?!./
0@-+(*"?A/0$
B!&:@C#>B#&!.A!@ D!/,
**-!./009#&!  *
(@ -,5#A/0$
E# A9&#$6#F5#!"
@G(H?IA0$;D!//J.4#
0/,4!4K(#&*+$%!.A
@7=LD!J&0.!.D4A
AM8.*N@*@8$;&!O*P=,
/@D='*&( /@/,*
78QARK/S(-@/K**!P= 
!.#&!.*CP-74=IT(N/@#&!.D
4O,@ /UV(4=IT(N/IVW$*((XA/
DAK*P/,*8@#&,!.**+!$
%#&@9#YY! $%
,.A! -4=8/0@YQA3Z
8W.*"($B&=*Y#&M9#&[
(\M&&=RANAN "$]^
(N0&[8&@"#PA
.!<!,"[@
!@C#$%*!."0P/,4
"[ 8!.$
 !"#$% &"
B!=_`#(@aA0X_Kb.c[L*#-

O5-,d*5-LP=@YK
Y30e(^f.# (*OY4=$%0F#
=* ((*@L@a*@f.#$
6C#(&+ePY*!.=1
Agf8/8&(:F#=Ag@.@G*Y 
3!F! F#=#eO
=8=="M@D+@C(XK5$
;(YKL(.@YKf.#4=
#.A<"5#+C+(
*KAg@.*@L$%P(YA<"5
#++(*Kf.#$h&= 
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(!^/)J#$23!!4=AG#&Y(j/)* <
!40yFD$
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@ A.$
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/*(3Qp=WO/(0$
EN!.@CZ[0/@$iYd*
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!v+!.@C+0/RP,:@(
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j @3A5#>
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(PK=NO.!.KMWy(.@. .
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