Преобразуйте предложения в косвенную речь.
1. “We live in a big city,’ they say.
2. “I am going to the market now,” Brian told her.
3. “I’ve found my passport,” Betty said
4. “I don’t like fish,” Ms Ford says.
5. Tom said: “I will help your sister.”
6. The dentist told me: “Don’t eat sweets anymore.”
7. The teacher said: “Keep the silence, please.”
8. John asked, “Have you seen the film?”
9. Tom asked, “Are you listening to music now?”
10. I asked, “Has she been working hard on this problem?”
11. She asked, “Was Nick in the library yesterday?”
12. He asked, “Does she work now?”
13. He asks, “Have you been reading this book since Friday?”
14. Jane asked, “Can anybody help me?”
15. He asked, “Will you be at Carol’s party tonight?”
16. “What have you bought me for Christmas?” the little boy asked his parents.
17. Helen said, “I cannot call you, I’ve lost your phone number”.
18. “Let’s go to a movie,” I said.
19. ‘’Why are you looking pale? What’s the matter?’’ asked Mother.
20. Ann asks Nina, “Where do you live?”
Объяснение:
Плохо, что не написан какой изотоп бора, будем считать, что это ₅¹¹В.
Вычислим массу ядра бора: mя = mиз - 5* me =
= 11,00931 - 5*0,00055 = 11, 00656 а.е.м.
Вычислим суммарную массу 5-и протонов и 6-и нейтронов входящих в состав ядра бора: ∑m = 5*mp + 6*mn = 5*1,00728 + 6*1,00866 =
= 5,03640 + 6,05196 = 11,08836 а.е.м.
Вычислим дефект массы ядра бора: Δm = ∑m = mя = 11,08836 - 11,00656 = 0,08180 а.е.м.
Переведем в килограммы: 1 а.е.м. = 1,6606*10⁻²⁷ кг => Δm = 1,6606*10⁻²⁷ кг * 0,08180 ≈ 1,35837*10⁻²⁸ кг ≈ 1,36*10⁻²⁸ кг
Вычислим энергию связи ядра бора: E = m*c² =
= 1,35837*10⁻²⁸ кг * (3*10⁸ м/с)² ≈ 1,22*10⁻¹¹ Дж.
