الذهبيه - فيزياء
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L =L<br />
o<br />
υ<br />
1 -<br />
c<br />
υ<br />
0.36 = 1 -<br />
c<br />
2<br />
2<br />
2<br />
2<br />
⇒<br />
⇒ 1 = 2<br />
υ<br />
c<br />
2<br />
2<br />
υ<br />
1 -<br />
c<br />
1<br />
2<br />
= 1 - 0.36 = 0.64 ⇒<br />
2<br />
2<br />
⇒<br />
=<br />
υ<br />
c<br />
υ<br />
1 -<br />
c<br />
2<br />
2<br />
⇒ 0.6 =<br />
= 0.8 ⇒ υ = 0.8c<br />
1 -<br />
υ<br />
c<br />
2<br />
2<br />
/<br />
՚ 冐 ɖ̸<br />
맨ᕩ<br />
. 0.8c o ɖ 冐 Ϝ Α R 횠맨맨 맨Ϙo 30m R 횠맨맨 ṦΎ RṦ൴똨 /<br />
2<br />
L υ<br />
0.8<br />
=Lo<br />
1 -<br />
2<br />
= 30 1 -<br />
C<br />
C<br />
2<br />
2<br />
= 30 1 - 0.64 = 30 0.36 ⇒ L = 30 × 0.6 = 18m<br />
/<br />
R R R 㤷 R<br />
맨ᕩ<br />
0.ᕪ<br />
맨 ΎϜ o 맨 ɖ 冐 o Α R 맨 똨 䁀 Ṧmo Ϩ맨 맨맨 o 맨 똨 맨 o m 맨맨 o /<br />
2<br />
. 0.ᕪc ൴맨 맨 맨 똨 Α<br />
υ 0.ᕪ<br />
=Lo 1 -<br />
2<br />
= 1 - = 0.1 ⇒ L = × 0.ᕪ14 = 3.ᕪ m<br />
/<br />
C<br />
C<br />
L 2<br />
2<br />
՚ Ϡ 㤷 R Ϡ 㤷 R R R R 㤷 R 맨ᕩ<br />
. Ṧ맨 R맨 o맨ɖ 冐 맨 맨RṦ맨 ᦙ o맨ɖϜ Ṧo ൴맨 Α /<br />
1<br />
. m 맨 Αᕩ맨 맨 R 冐 맨 맨 맨 맨 mΑ o ṦmᕩϜ γ =<br />
2<br />
m 맨 맨o 똨 똨 ൴맨 /<br />
υ<br />
1 -<br />
2<br />
C<br />
. 맨 맨 똨 Α 0.6 Ϝ o 맨 ɖϜ o 2 % Ϝ o R 冐 맨 o맨 맨 맨 oᕩ맨 o o /<br />
m 1 m<br />
= ⇒ =<br />
m<br />
2<br />
o υ mo<br />
1 -<br />
2<br />
C<br />
m 1 m<br />
= ⇒ = 1.2 ,<br />
mo<br />
0.8 mo<br />
1.2<br />
%Δm = %100 ,<br />
1<br />
1 -<br />
1<br />
0.6c<br />
C<br />
2<br />
2<br />
m = 1.2m<br />
o<br />
⇒<br />
%Δm = 2%<br />
m<br />
m<br />
o<br />
=<br />
1<br />
1 - 0.36<br />
=<br />
1<br />
0.64