Определите, сколько колебаний на морской волне совершит за 20 с надувная резиновая лодка, если скорость распространения волны 4 м/с, а ее длина равна 4 м.
1/Was he short of money last month? 2/Were they short of cash in the morning? 3/Were they short of fresh air in the country? 4/Were they short of good tea before? 5/Were they short of fresh water a short while ago? 6/Were they short of petrol last week?
2/Were they short of cash in the morning?
3/Were they short of fresh air in the country?
4/Were they short of good tea before?
5/Were they short of fresh water a short while ago?
6/Were they short of petrol last week?