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Ответ

Ответ дан
woooollllffff

Ответ:

6. Дано: m=450 г = 0,45 кг.

V=22 м/с.

Найти: Eк.

Формула: Eк=mV²/2.

Решение.

Eк=0,45×22²/2=108,9 Дж.

Ответ: Eк=108,9 Дж.

7.

Eп=mgh

g=9,8

Eп=2×9,8×40=784дж.

8. 2

9. 4

10. 4

Ответ

Ответ дан
ЮрВас

6) 108,9 Дж

7) 800 Дж

8) 1

9) 1

10) 4

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