1. ω: ) ; ) ; ) ; ) , =88 . υ , , h = 200 ? (: ) ω = 72,710-6/; ) ω = 145,410-6/; ) ω = 1,7410-6/; ) ω = 1,1910-3/, υ = 7,83/.
2. , R, 
. , 153 /2. . (: R =0,15 )
3. J L .(: J = 97,310362; L = 7,071033/2)
4. 10 , 2 . , . . (: = 2,8 /2)
5. D = 60 m = 1 , ν = 20 /. , ? (: =355 )
6. ν = 900 /. , , N = 75 . =44,4 . J . (: J = 0,016 2; =9410-3ͷ).
7. , υ = 10 /, . , 0,6 , , u 1 = 25 /. u 2 . (: u2 = -12,5 /).
8. , υ = 9 /. m = 78 , m 1 = 3 . .(: =253 )
9. , h = 20.(:1,63 /)
10. m = 100 , , ν1 = 10 /. m0 = 60 . ν2 , ? , .(: ν2 = 22 /)
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