Предмет: Физика, автор: zajcenkonasta439

яка довжина хвилі у повітрі обчислена у метрах, якщо її частота 680 Гц​

Ответы

Автор ответа: shtifrudolf
1

Ответ:

L = 330 / 680 = 33 / 68 = 0,5 метров (результат был округлен до одной десятой). Ответ: длина звуковой волны равна 0,5 метра (50 сантиметров).

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Математика, автор: huhlenkoakim
Знайди градусну міру кута ∠CAN, якщо ∠BAN = 100°, ∠CAM = 102° і ∠BAM = 153°.


Відповідь: ∠CAN =
1 год назад
Предмет: Английский язык, автор: pina57375
даю 50 баллов
Jack _________ to school because he felt ill yesterday.
didn’t go
won’t go
hasn’t been
Nadine’s phone rang while she _____ some chocolate in the shop.
was buying
bought
has bought

Oh no! The weather forecast says it _______ tomorrow.
is raining
rains
will rain

_________ your breakfast yet?
Did you have
Have you had
Were you having
The school term _______ in June, so it’ll soon be the summer holidays!
finished
finishes
has finished

___________ my dentist tomorrow. I’ve got an appointment in the afternoon.
I’m seeing
I see
I’ll see

Teri ________ shopping on Saturdays if her friends are free.
often goes
is often going
often went

Who _________ at the party last night? All your friends?
did you see
were you seeing
have you seen


2 Complete the sentences with the correct form of the verbs in brackets.

How long _______________ (you / live) in this city?

*

Tom _______________ (not / like) going into town on Saturdays. It’s too crowded.
*

When _______________ (you / last / visit) your grandma?
*

_______________ (Jamie / wash) the dishes when he broke the plate?
*

_______________ (I / stay) with my sister’s family at the moment.

*

Are you hungry? I _______________ (make) you a sandwich.

*

Jack _______________ (never / visit) the US before –he’s going for the first time next week
1 год назад
Предмет: Алгебра, автор: smakuladishsnma1
Выручайте срочно, заранее сасибо)​
1 год назад
Предмет: История, автор: Аноним
Якою була мета створення цеху?
7 лет назад
Предмет: География, автор: Liza8018
Найбільша висота снігової лінії спостерігається у
Уралі
Тянь-Шань
Кіліманджаро
Карпатах
7 лет назад