Предмет: Физика, автор: vlambard

Физика.Движение двух автомобилей по шоссе задано уравнением х1=2t+0,2t^2; х2=80-4t.Написать уравнение для скорости каждого автомобиля.Построить график зависимости u от t для каждого автомобиля

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Автор ответа: larisaorlova65

0

1)Движение равноускоренное, V₀ =2,м/с, a=0,4 м/с², V=2+0,4t -уравнение 1
2)Движение равномерное с постоянной скоростью,
проекция которой равна -4 м/с, V=- 4 уравнение 2
см файл

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1ЕХ Переведите диалоги на русский.
1. Discussing the price and the way of payment
Borisov: Good morning! I’m Borisov. Here is my card.
Stanley: Glad to meet you, Mr. Borisov. Will you take a seat, please?
Borisov: Thank you.
Stanley: Did you have a good trip?
Borisov: Yes, it was quite nice, thank you.
Stanley: Have you seen any places of interest in London yet?
Borisov: Yes, but not many. I arrived in London only two days ago and it has been raining all the time.
Stanley: Oh, I hope the weather will change for the better and it’ll stop raining soon. You’ll enjoy sightseeing of London. … Well, Mr. Borisov, let’s discuss business now. What can I do for you?
Borisov: You’ve started producing a new model of pumps. The quality of the model meets our requirements and we’d like to place an order with you.
Stanley: Sure.
Borisov: But before signing a Contract I’d like to discuss some points with you. Let’s start with the price. I’m sorry to say that your price is not attractive to us. You have quoted very high price.
Stanley: The prices on the world market for this type of pumps are lower than ours. But we have improved the model, so the price is reasonable.
Borisov: Anyway, I think that the price is a bit high. I’d like to stress that it’s our trial order and if we are satisfied with our transaction, we can repeat orders in future.
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Borisov: Fine. That settles the price problem.
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Borisov: Yes, it will.
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Borisov: OK. Could we meet tomorrow at 10 a.m. to discuss the terms of delivery? Stanley: Fine. Good-bye, Mr. Borisov.
Borisov: Good-bye, Mr. Stanley.
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Borisov: OK. I think we could agree to that.
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