Предмет: Физика, автор: radchenkob

Подскажите пожалуйста как находить среднюю скорость если известно t1.t2.v1.v2?

Ответы

Автор ответа: trollex2000
0
Предыдущ ответ неверный
(v1+v2):(t1+t2)
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Предмет: Английский язык, автор: kboltovsky
Grammar: Past simple
1. Complete the sentences with the words below.
danced didn't stay graduated was went were
1 I wasn't at the carnival. I .......................... to my sister's wedding.
2 I ..........................last year. My parents came to England for the ceremony.
3 People wore colourful costumes. I t ..........................an exciting day!
4 We watched the parade. We sang and..........................to the music.
5 I stayed with my friends. I .......................... in a hotel.
6 We didn't see the fireworks. W e ..........................tired and went to the hotel.

2. Put the verbs into the correct tense (Past Simple or Past
Progressive).
- While Tom _____________(read) Amely ______________(watch)
a documentary on TV.
- Marvin ________(come) home, ___________(switch) on the
computer and ______________ (check) his emails.
- The thief _____________(sneak) into the house,
___________(steal) the jewels and ______________ (leave)
without a trace.
- Nobody ______________(listen) while the teacher
______________(explain) the tenses.
- While we ___________(do) a sight-seeing tour our friends
___________(lie) on the beach.
- He ________(wake) up and __________(look) at his watch.

3. Put the verbs into the correct tense (Past Simple or Past Perfect).
- The removal van __________(arrive) before they
_____________(finish) packing.
- Before they ___________(move) to this town, they _________(live) in
Chicago.
- After the kids ___________(eat) their lunch, they __________(take) a
little nap.
- After school we always _________(meet) at the youth club.
- Soon after sunrise we __________(cycle) to an observation point that I
______ never ______(hear) of before.
- When I _________(come) home, my mother ______ already
_________(prepare) dinner.
- When Monica ___________(finish) her homework, she
____________(go) out to play with her friends.
- When we ____________(meet) Andrew, we ____________(tell) him
about our plans