Предмет: Физика, автор: KbVlad

Материальная точка массой 1кг равномерно движется по окружности со скоростью 10 м/с. Найдите модуль изменения ее импульса за 4,5 оборота

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Автор ответа: firsov1959ot9mis

Через 4,5 об вектор скорости направлен противоположно начальной скорости.|ΔP|=2mV=2*1*10=20 кг*м/с

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1. Mary ________ a test. (fail)

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2. My sister ______ her tasks. (do)

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3. Cathy ________ the vase. (break)

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2. Jack and Mike have seen a new manager.

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3. She has sold her car.

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Write general questions. Don't use question marks (they are given):

1. She has turned off the printer.

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3. Mike has returned from the shops.

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Write these words in the correct order. Use punctuation marks:

1. ocean/sailed/across/I/an/ever/have?

2. it/ever/snowed/has/July/in?

3. ever/have/had/you/at 8 am/ice cream?

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1. I
Thai food. (try)

2. My sister
me her CD player yesterday. (give)

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my friends today. (not phone)

Change the third form into the first form:

Example 0.

flown
Answer 0.

fly
1. grown
2. understood
3. fought

Write the third form of the verb.

Example 0.

rise
Answer 0.

risen
1. swim
2. take
3. grow

Choose the third form:

1.
given
givens
gave

2.
hear
hears
heard

3.
chose
choses
chosen

Choose the third form:

1.
driven
drove
drives

2.
known
knows
knew

3.
sell
sold
selling

Here are the words but the letters are mixed up. Write the correct variant.

Example 0.

fectper
Answer 0.

perfect
1. eenb
2. ntlyrece
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1. They have logged on to the computer.

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my friends today. (not phone)

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