ChemNet
 

1. x = 51, x = 55.

2. 0.5 < x < 1.

3. x = p/8 + pk/4, x = pm, x = p/14 + pn/7, k, m, nI Z.

4.

5. .

6. 11.

7. 16/5.

8. , , , , .

9. 1.

10. x = , x = .

11. 3.

12. a = 2, b = 4, c = 64.

- :
. . . . .

1. v0 = (2mg(lh+(M/m)(0.5lh)))1/2 = 3.5 /.

2. = 7.

3. l = 2V2 / (gsina) = 3.8 .

4. p = (1/3)nmV2 = (2/3)n<Ek>. <Ek> .

5. I = e0ER2w/2.

6. U = 0.5aa2(2cb)/(a+b).

7. d = 9.6times.gif (63 bytes)108 .d = (l/4n)cosb, sinb = (n1/n)sina, n1 .

8. W = (hc/l)n(lj/d)2 = 0.027 .

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