Английский язык, опубликовано 12.02.2019 16:00
Ii. choose the word which best completes the sentence. example: i'm sure that one day the scientists will … most of medical problems. a) take b) solve c) explore i'm sure that one day the scientists will solve most of medical problems. 1. by exploring space we may find another … we can live on. a)
distance b) planet c) star 2. natural disasters … cities and towns, they injure and kill people and animals. a) break b) damage c) destroy 3. but people hope they will travel through … in huge spaceships far from the earth. a) space b) galaxies c) satellites 4. scientists can now predict most weather …
and warn people of possible danger in advance.
Ответ оставил: Гость
M=1 кг, ек=2 дж. h=? в момент прохождения положения равновесия полная механическая энергия равна кинетической энергии eк,так как в этой точке скорость максимальна, а потенциальная энергия на этом уровне равна 0. в крайнем положении кинетическая энергия равна 0 и полная энергия равна потенциальной mgh. имеем: mgh=ек h=ек/(mg); h=2/(1*10)=0.2 м.
Ответ оставил: Гость
1. by exploring space we may find another … we can live on. b) planet2. natural disasters … cities and towns, they injure and kill people and animals. c) destroy 3. but people hope they will travel through … in huge spaceships far from the earth. a) space 4. scientists can now predict most weather … and warn people of possible danger in advance.
Ответ оставил: Гость
1 by that time all the phone talks had been finished 2 a press- conference for us has just been held by Richard Bronson in California 3 the work of the new-comers is being assessed by the head of the department 4 the whole contrac was translated into German 5 the price for this shipment will be quoted soon
Английский язык, опубликовано 09.01.2019 16:01
Английский язык, опубликовано 09.01.2019 16:01
Английский язык, опубликовано 09.01.2019 16:01
Английский язык, опубликовано 09.01.2019 16:01