Предмет: Физика, автор: ArtEfanM

До кінців важеля прикладено вертикально вниз сили 15 Н і 25 Н. Коротке плече важеля дорівнює 15 см. Якою є довжина довгого плеча? Важіль перебуває в рівновазі (ДАЮ 30 БАЛОВ!!!!!!!!)

Ответы

Автор ответа: yuliya250588gogina
11

Ответ:

Дано

F1=15H

F2=25H

d2=15см=0.15м

d1-?

F1/F2=d2/d1

d1=F2*d2/F1

d1= 25*0,15/15 =0,25 м

ответ 0,25 м= 25 см

Похожие вопросы
Предмет: Английский язык, автор: игорь657
Введите свой Упражнение 5Раскройте скобки, употребляя глаголы в Present Continuous, Present Simple или Future Simple.1. It (to be) cold in autumn. It often (to rain). A cold wind often (to blow). 2. The weather (to be) fine today. It (to be) warm, the sun (to shine) brightly. A soft wind (to blow) Small white clouds (to sail) in the sky. 3. Don't go out: it (to rain) heavily. 4. Take your raincoat with you. I am afraid it (to rain) in the evening and you (to get) wet through if you (not to put) on your raincoat. 5. Every spring birds (to come) to our garden and (to sing) in the trees. 6. Listen! Somebody (to sing) in the next room. 7. It usually (not to snow) at this time of the year. 8. What the weather (to be) like now? It (to snow)? - No, it ... . 9. We (to go) out of town to ski on Sunday? - Yes, we ... if it (to snow) this week and if there (to be) a lot of snow everywhere. 10. What you (to do) tomorrow? - We (to go) out of town if the weather (not to change) for the worse. You (to come) with us? - With pleasure, if only I (not to have) too much work to do at home. 11. If we (to have) televisions at our supermarket, they (to inform) customers about things in the store. 12. If we (to play) music, it (to produce) the right atmosphere. 13. If we (to put) in cameras, they (to stop) people stealing things. 14. If we (to employ) more assistants, they (to help) our customers.вопрос сюдаУ этого сайта нет рейтинга
Предмет: Математика, автор: diankamamedova1