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Вопрос по физике:
Мяч массой m=0,18 кг летит вертикально вниз равноускоренно. Равнодействующая всех сил, приложенных к нему, равна F=1,8 Н и направлена вниз. Определите ускорение мяча.-
Автор:
giovanni
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За II законом Ньютона:
F = m × a
a = F / m = 1,8 / 0,18 = 10 м/с²
Ответ: a = 10 м/с².
Еще 4 ненужных тебе вопроса, но это важно для поиска
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Вопрос по математике:
в первый день катер проплыл 3,5 км, во второй на 4,31 км больше, а в третий-на 0,9 км меньше, чем во второй. Сколько всего км проплыл катер за 3 дня.-
Ответов: 4
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5 лет назад
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Вопрос по английскому языку:
GRAMMAR
3 Complete the sentences with the correct
preposition. Use each word once.
1 Complete the sentences with the verbs in the -ing
form or infinitive.
Example: She left without closing (close) the door.
1 I love _ (walk) in the rain.
2 Try not
(spend) too much money.
3 I need_ (buy) some new shoes.
4
(swim) is very good for you.
5 I sent Tom an e-mail because I wanted
(tell) him about the party.
6 It isn't easy
(learn) a language.
7 He's very good at
(talk) to new people.
8 I don't really like
(dance).
along in over through into of around
Example: He walked out of the house and never came
back.
1 Go the bridge and take the first turning on
the left.
2 She came the living room and sat down.
3 You can't drive the Channel Tunnel, you have
to take your car on the train.
4 They walked the street until they found a good
restaurant.
5 Come ! It's lovely to see you.
6 We went for a long walk the lake.
2 Underline the correct form.
Grammar total
20
VOCABULARY
4 Complete the sentences with the correct word.
Example: You must don't have to tidy your room.
It's a mess.
1 You don't have to / mustn't swim there.
It's dangerous.
2 I have to / don't have to do my homework.
It's Saturday.
3 She must / mustn't practise the piano tonight.
She's not very good.
4 They have to / don't have to be home early. They're
very young.
5 We mustn't/ don't have to buy tickets - entrance
is free.
Example: Do you enjoy reading?
enjoy want think
1 Mike's ___
in fishing
interested excited happy
2 She
a lot of time watching TV.
has spends does
3 I'd
to go out this evening.
mind think like
6 You can't / must go to the party. It's too late.
4 I've
driving.
talking to him.
done stopped dreamed
5 He doesn't
want mind good
6 I'm
of studying law.-
Ответов: 2
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5 лет назад
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Вопрос по физике:
Определить какая энергия выделяется или поглащается при реакцыях-
Ответов: 1
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5 лет назад
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Вопрос по математике:
Найдите площадь треугольника, вершины которого имеют координаты (0;0), (5;6), (9;4)
С Решением, оч надо-
Ответов: 1
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5 лет назад
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