Предмет: Физика, автор: yana24111997

Груз массой 50г совершает колебания на пружине жесткостью 2,0 кН/м. Определите наибольшую скорость груза, если амплитуда колебаний равна 30 мм

Ответы

Автор ответа: tatoodik

0

отклонения равно Δх=0.03м
по закону сохранения энергии потенциальная энергия на максимальном отклонении равна кинетической когда пружина вернулась в норм состояние т.е. kΔx²/2=mV²/2
V=√2kΔx²/m

Автор ответа: dnepr1

0

Частота колебаний ω = √(k/m) = √(2000/0,05) = √40000 = 200 радиан/с.
Максимальная скоростьVмакс = Аω = 0,03*200 = 6 м/с.

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Литература, автор: fdashka0906

Объясните пожалуйста значение слов: пойманный как зверь, усердно, строгий нрав,каморка,захолустье
Пжпжпжпж

6 лет назад

Предмет: Английский язык, автор: bmovlat

60 БАЛЛОВ. ХАЛЯВЧИКАМ БАН

4. Supply the correct tense-forms.
1. Voronin seldom (to watch) TV. In the evenings he usually (to do) his homework.
Sometimes he (to write) letters to his friends. Now he (to read) an English book. He (to
like) the English language and he (to want) to speak this language well.
2. – (to be) Mrs. Bell in the garden?
– Yes, she (to show) it to her friend. Her garden (to be) very nice and she always (to show) it
to her friends.
3. – You (to be) ever to Paris?
 Yes, I (to be) there in April.
 You (to see) the Eiffel Tower?
– No, I (to see).
4. – We just (to start) producing this model and we already (to receive) a lot of orders for it.
How many machines would you like to buy?
– I (to think) 15 or 20.
5. – When you (to look through) the catalogues?
– I (to think) I (to do) it tomorrow. Let’s meet on Friday if it (to be) convenient to you.
6. Vanessa, you (to invite) people from BAC to our today’s conference?
7. I (to know) the results in a week.
8. What you (to do) when you (to leave) the University?
9. Tom (to sit) in the corner with a book. I told him that he (to read) in very bad light.
10. She’s flying to Rome tomorrow. She (to send) her family a telegram as soon as she (to
arrive).
5. Change the following sentences in Direct Speech into Reported Speech.
1. Mr. Blake said, “We usually sell goods on CIF terms.”
2. Mr. Smith said, “I flew to Moscow by an Aeroflot plane last month.”
3. Mr. Bell said to Jack, “Please give me your dictionary.”
4. Henry said to me, “I didn’t throw stones at your dog.”
5. The teacher said to the pupils, “Learn the poem by heart.”
6. Jack asked, “Who has taken my pen?”
7. Mary’s mother asked her, “Who did you see yesterday?”
8. Mary’s mother asks her, “Are you hungry or thirsty?”
9. Barry said, “Our plane will take off on time.”
10. Betsy says, “I’m leaving for London next week.”

6 лет назад

Предмет: Физика, автор: no9057170

Вычислить силу трения скольжения действующего движущегося по горизонтальной поверхности предмета, если его масса m = 1,5кг, а коэффициент трения μ = 0,1.

6 лет назад

Предмет: География, автор: 2001viola

помогите найти на физической карте россии десять названий городов с западной долготой

9 лет назад

Предмет: История, автор: 98Belka

В чем было значение эпохи Мэйдзи?

9 лет назад