August 2018 1 23 Report
Proszę o pomoc ;* Daje naj
Aby napiąc kuszę, Maciej wykonał pracę mechaniczną równą 500J. Wyznacz, jaką energię kinetyczną będzie miał bełt wypuszczony z tej kuszy.



Oblicz, jaką pracę trzeba wykonac, aby sprężynę o współczynniku sprężystosci 100N/m rozciągnąc o 5cm.
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Match the sentence halves.1. If there was a flood in this city,2. She wouldn't sing with the band3. People wouldn't drop litter on the pavement4. If the tickets were cheaper, 5. If my school football team played Chelsea,6. We wouldn't use our car so mucha. if there were more rubbish bins in townb. we'd all have to leave our homesc. they'd lose d. if the guitarst wasn't her husbande. if we lived in townf. I'd go to more rock concersComplete the second conditional sentences with the verbs in brackets.1. It______(not be) fair if I_______(eat) both pizzas.2. If houses_________ (be) stronger, earthquakes________ (not kill) so many people.3. If I _______(have) more money, I_______(lend) you some.4. What_______(you/do) if I________ (forget) your birthday? 5. I________(go) to nightclubs more often if I _________(can) dance better.6. ________(you/be) angry if I_______(break) your tennis racket?7. If we ________(not live) in the country, it_______(be) easier to get a taxi.8. I_________(not be) surpsised if she_________(go) to Harvard University.Complete the summary with the words in the box.bags, compost, diffrence, harm, left- overs, packaging, sea, wasteThe S trauss family became serious about reducing __________ after they read an article about plastic bags and how much_______ the cause. If the bags end up in the ocean, they can harm________ creatures. Now, the Strauss family recycle__________ and re-use __________ when they go shopping. They don't throw and food in the rubbish bin: they eat their________ or use them to make__________. They think people could make a big_________ by following their example.Write wishes. Then match them with the reasons below.1. (can/play the guitar)2. (live/in Los Angeles)3. (know/ some famous people)4. (have/ a job)5. (be/fitter)a. I'd go to the beach every weekend.b. I'd have more money to spend.d. I'd invite them to my parties.e. I'd beat my brother at tennis.f. I'd join my friend's band.Complete these slogans with the words in the box.difference, future, gift, help, make, planet1. Our children are our______2. T ogether we can make a _________3. Take care of our______4. G ive them the_______ of hope.5. Let's______this world a better place.6. With your help they can________ themselves.
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Write sentences with I think you or I don't think you and the verbs in brackets.1. _________ walk to the castle. It isn't very far. (should)2. _________ visit the museum. It's very interesting. (ought to)3. _________ stay in the city centre. It's very noisy. (should)4. _________ eat in that restaurant. It's extremely expensive (ought to)5. _________ take a bus tour. You'll see everything (ought to)6. _________ go to the shopping district. There are some fantastic shops. (should)Complete the questions (1-6) and answers (a-f). Use one word only in each gap.1. What do you r_________ we see?2. Are there any festivals or carnivals o_______ at the moment?3. How much does it c______ to get in?4. Can you s__________ me where that is on the map?5. Is t_________ a taxi rank nearby?6. Is the Old Town near h_________?a) It's Ł10 for a_______ and Ł8 for children under 16b) Yes, there's o_____ near the bus station.c) You should go to the museum. It;s very i_________d) No, you'll need to take a tram to g_________ there.e) No, not u_______ March.f) Yes, it;s here, n_____ to the museum.Complete the sentences with the colloquial expressions in the box.ages, awesome, chill out, fab, get in, guys, make it, place, messed up, stuff1. We're gonna_________ and watch some DVDs at my ________2. Pete's going to________ pizzas, crips, and_______3. The party's going to be ________. I'm really looking forward to it.4. Thanks for the invite to your party. It's gonna be _______5. Sorry I can't come - I________ and arranged to go out with my sister.6. Can you________ to my party? I haven't seen you ______ for_________ Write three sentences about you. Use must, mustn't and needen't.1._________________________________2.__________________________________3.__________________________
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