Câu 1Ta có Wt= W- Wđ=> Wđ/ Wt = Wđ / W-Wt = 1/2 mv^2 / (1/2. k.A^2-1/2 m.v.^2 ) = (m.A^2.$\Omega$^2/ 25)/ (k.A^2 - mv^2)= A^2. $\Omega$ ^2 /25 : ($\Omega $^2 . A^2 - v^2)= A^2. $\Omega$ ^2 /25 : $\Omega$ ^2 . A^2 - A^2 . $\Omega$ ^2 /25)= 1/24Câu 2 Tương tự
Câu 1Ta có Wt= W- Wđ=> Wđ/ Wt = Wđ / W-Wt = 1/2 mv^2/(1/2kA^2-1/2 mv^2 ) = (m.A^2.\Omega ^2/ 25)/ (k.A^2 - mv^2)= A^2. \Omega ^2 /25 : (\Omega ^2 . A^2 - v^2)= A^2. \Omega ^2 /25 : (\Omega ^2 . A^2 - A^2.\Omega ^2/25)= 1/24
Câu 1Ta có Wt= W- Wđ=> Wđ/ Wt = Wđ / W-Wt = 1/2 mv^2
/
(1/2
. k
.A^2-1/2 m
.v
.^2 ) = (m.A^2.
$\Omega
$^2/ 25)/ (k.A^2 - mv^2)= A^2.
$\Omega
$ ^2 /25 : (
$\Omega
$^2 . A^2 - v^2)= A^2.
$\Omega
$ ^2 /25 :
$\Omega
$ ^2 . A^2 - A^2
.
$\Omega
$ ^2
/25)= 1/24
Câu 2 Tương tự