A=E2-E1
mgh=(mV2^2)/2-(mV1^2)/2
mgh=mV2^2/2
gh=V2^2/2
V2^2=2gh
V2=√gh
m1=1 кг m2=0.2 кг
Из закона сохранения импульса
0=mV(raketu)-m2V(gazov)
V(gazov) =m/m2 *V(racetu)= (m/m2)*√2gh
V(gazov)=(m1-m2)/m2 *√2gh
V(gazov=(1-0.2)/0.2 *√2*10*500=400 м/с
Ответ 400 м/c
Автор:
lily48Добавить свой ответ
x-4y=-6
3x-y=8
Срочно до завтра!!!!!!!!!
Answer the questions.
1. What would you have to do if you worked as a dishwasher?
2. What would you have to do if you worked as a costumed character?
3. What would you have to do if you worked as a ranger?
4. What would you have to do if you worked as a cook?
5. What extra opportunities would each job give you?
6. Which of these jobs do you find the most / the least exciting? Why?
7. Which of these jobs do you find the easiest / the most difficult? Why?
8. Which of these jobs would you like to try? Why?
Предмет:
Английский языкАвтор:
casioОтветов:
Смотреть
Разобрать предложение по членам+ падежи у дополнений -олег ехал верхом на лошади
Предмет:
Русский языкАвтор:
carrilloОтветов:
Смотреть