383wro2014

38 A 1

4

\

.

1.

,

1.

:

.

2.

3.

4.

.5

2.

97,1MHz

LOVE-FM

90,8 MHz.

ZOO-RADIO

LC

:

1.

2.

3.

4.

3.

.5

.

L

R

,

p

: 1. L=p

2. L= 路p路R

3. P=L路R

4. L=p路R.

.5

4.

U

.

: 1. 0,2Hz

2. 0,4Hz

3. 2,5Hz

4. 5Hz

5.

1

.5 5

.

1.

,

,

.

2.

.

3. (pulsar).

.

4. .

5.

1.

.5

.

( )

m1=m=0,1Kg.

mx ( ),

,

m2=14m.

1

2

m1

= , ,

:

m2

mx.

2.

.7

. , : n=2,

.

3.

1=60º

2=30º.

.6

V=10m/s

,

y=0,2

(170t - x/2).

S,

V

(AS), :

1. y=0,2

(170t - x/2).

3. y=0,2

(170t - x/4).

2. y=0,1

(170t + x/2).

4. y=0,2

(165t - x/2).

:

S.

.2

.

.6

.

4.

: 1.

+kx+bu=0.

.2

2.

.3

.

t=0

, : y= x.

t, t1: 9 4

. .

(

)

m/s. d=10m t=0,25s.

1.

2.

3.

4.

u,

f

.6 .5 .7

.

.

t=0,325s. : x =10m, .

‘

milimetre

.

.7

m=1Kg K=100N/m

M=3Kg

.

L=2m

,

.

=600 (t=0),

.

.

t=1s,

300,

,

D

1.

:

.5

.

2.

.7

.

m,

3.

(

t=0).

.6

4.

.7

; :

= , ,

,

= ,

,

=

2

=10, :I=

(

,

=

)

1.

( ).

nv

,

.

2. .

. .

3.

4.

. . ,

5.

6.

. .

:

(3) : 1 0 :3 0

. .