снаряд массой 20 кг летевший горизонтально попадает в платформу с песком массой 10т и застревает в песке. с какой скоростью летел снаряд если платформа начала двигаться со скоростью 1 м/с

Поширені речення зі словосполученнями:
пароплав "Тарас Шевченко"
Шевченкові слова
читати "Кобзар"

РЕБЯТ СРОЧНО!!передайте следующие предложения в косвенной речи 1 "Have you got a Russian-English dictionary?" he asked me. "Can you let me have it for this evening? I must do some very difficult transla­tion." "All right," said I. "I won't need it tonight." 2. "I thought about you last night, Lydia," said Nellie. "Have you decided to go to Omsk with your parents or will you remain here with your aunt until you finish school?" 3. "Have you done your homework or did you leave it till the evening, Bob?" asked Mike. "I thought of inviting you to go to the theatre with me, but I remembered that you near­ly always do your homework in the evening." 4. "I am fond of Dickens," said Jack. "I have been read­ing 'The Old Curiosity Shop' the whole week. I like the novel very much. 1 arn reading it for the sec­ond time." 5. "I think my friend has finished read­ing 'Jane Eyre', said Tanya. "I hope she will give it to me soon: I am eager to read it."

Укажите все отрицательные значения параметра k, при которых графики функции y=x^2-3x+1 и y=x+1-k^2 не имеют общих точек.

Вибрати вираз тотожно рівний виразу -2ab(4a+5b)
A -2a^2b-2ab^2
Б -8a^2b+10ab^2
B 8a^2b-10ab^2
Г 8a^2b-10ab/^2x4