, . , . , .
.
.
. ,
, , , .. . , , , .. , . , , , , ..
) . .
. , , . -, , ; -, .
:
:
, ; , , .. , . .
. , - , .. , , .
, . , . , .
, , . . , : ,
|
|
)
: t x. . S , , t . , . , , f. :
S = Asinwt
:
S = Asinw(t - t) t = X/u
:
S = Asinw(t X/u)
u - .
, S : t ,
.. S = f(X, t)
.
)
:
E = mA2w2
2
V. N , mo . :
E = NmoA2w2
2
:
r = m/V = Nmo/V
:
Nmo = rV
:
E = rVA2w2 = (rA2w2) V = eV
2 2
e - (/3)
S t: , V = Sl
E = rVA2w2 = rSlA2w2 = rA2w2 = eu
St 2St 2St 2
E = I (/2) : I = eu
St
. , .