Электровоз движется с постоянной скоростью и ведёт состав массой 1800 т.
Сила тока, потребляемая электровозом из сети напряжением 3000 В, равна
750 А. Коэффициент трения равен 0,005. КПД двигателя электровоза 80%.
Определите скорость движения электровоза.

Решить неравенство sinx>0

Помогите сделать задание по английскому перевод и вставить слова, за ранее большое огромное спасибо, в переводчике переводит,но не понятно((

Piet is phoning Bob. Complete the conversation. Use the phrases in the box. a) thursday suits me fine

b)Thanks for calling back.

с)what about later in the week?

d)let's make it first thing on Thursday morning.

e)I'm tied up

f)I can be with you at 9 a.m

Pier) Hello, Bob? Bob ) Piet! Good to hear you. I guess you got the message. ______________________________ Pier) No problem. You wanted a meeting, you said. Bob) Yes. That's right. I have to go to Frankfurt, so could I see you at the start of next week? Pier) No, Im afraid ________ all day on Monday. So _______ Is Thursday any good? Bob) Thursday? OK. Yes. _________ I'll be finishing in Frankfurt the day before. Pier) All righr, and I expect you'll want to catch an carly flight home,so ____________ Bob) Right. I'll fly in from Frankfurt the evening before. Piet) Fine. Can we just quickly talk about the points we'll need to cover, and how much time we'll need...