Эти все карточки решить над(
Хелп плс

1. there is not sense in what you suggest. b) much     2. give him a goog mark to his self-respect. a) raise   3. would you like sweet ?   b) another           4. there is no place like .. c) home  5. the infotmatoin is top secret, so naturally, everybody is interested in c) it6. save your money but do not put in the bank. b) it   7. everyone has to answer for all this ?   d) do not they8. he has been unemployed he left college.  c) since  9. i cannot make up my what to do next. b) mind 10. there are not fruits at this time of the year. b) any  11. why have not you your bed yourself? b)made  12. of the two irons i have one is burnt, and is out of order too. d) the other

Дано:
m=0.5кг.
t₁=0°C
t₂=20°C
λ=34·10⁴Дж/кг
c=4200 Дж/кг·°С
Найти Q

Решение:
Q₁=λm
Q₁=34·10⁴Дж/кг · 0.5кг=170000 Дж.
Q₂=cm(t₂-t₁)
Q₂=4200 Дж/кг·°С · 0.5кг(20°C-0°C)=42000 Дж.
Q=Q₁+Q₂
Q=170000 Дж+42000 Дж=212000 Дж=212 кДж=0,212 кДж/К

18км/год:3.6=5м/с
Щоб перевести км/год в м/с потрібно число поділити на 3,6 або навпаки

Дано:       | СИ
F= 4 кН    | 4000H
Δl = 4 мм |  0.004 м
_________________
F=k*x
Жесткость проволки определяется по формуле k=F/x
k=4000/0.004 = 1000000 H/м