September 2018 1 41 Report

Daje najjj

Po powierzchni pochyłej zsuwa się drewniany klocek o masie 2kg.Jaką wartość ma siła nacisku klocka na pochyłą powierzchnię? (kąt tej powierzchni rowny jest 30stopni) moze ktos to zrobic ale z lekkim wytlumaczeniem co skad sie bierze


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prosze o rozwiazanie a jesli jet poprawne uzycie jednego z 2 czasow zdaniu to tze prosez napsic te 2:P1. John ................... reading. (not, like)2. ................... any of you ................... sports regularly? (play)3. I rarely ................... newspapers. (read)4. Yesterday I ................... you talking to a stranger. (see)5. Tonight we ................... to the opera. (go)6. Right now he ................... on the phone. (talk).7. You are late, the lesson ................... fifteen minutes ago. (start)8. When ................... the Beatles ................... their first album? (record)9. On Friday I ................... to the boss about a rise. (talk)10. These days we ................... a lot. (work)11. My father ................... maths at a secondary school. (teach)12. I ................... any book now. (not, read)13. ................... you ................... anything yesterday? (buy)14. When I ................... (go) home, I ................... (meet) John.15. At this moment he should ................... his final exam. (write)16. Jane ................... to Washington tomorrow. (fly)17. Don't disturb me while I ................... (work).18. Holidays ................... last Friday. (begin)19. At midnight I ................... still ................... home. (drive)20. Every Sunday we ................... to church. (go)21. When I ................... (wake up), the sun ................... (shine) and the birds ................... (sing).22. Look, the sun ................... (set)23. In summer the sun ................... about nine o'clock PM. (set)24. While I ................... (sleep), he ................... (clean) the house and ................... (prepare) dinner.25. What ................... you ................... yesterday at 11 AM? (do)26. I ................... never ................... to Australia. (be)27. ................... you already ................... your car? (wash)28. He ................... just ................... back. (come)
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