Treść zadania

Konto usunięte

Samochód 1 połowę czasu podróży jechał z prędkością 70 km/h a drugą 90km/h. Oblicz jego szybkość średnią !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

POMÓŻCIE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Zadanie jest zamknięte. Autor zadania wybrał już najlepsze rozwiązanie lub straciło ono ważność.

Najlepsze rozwiązanie

Rozwiązania

Podobne materiały

Przydatność 100% Drugs

Drugs: · Can mean everything from cigarettes and alcohol to heroin, cannabis, amphetamines, LSD and cocaine · They are dangerous for many reasons: - they cause depression, unconsciousness (nieprzytomność) or even death - there is also danger of addiction (uzależnienie) after regular use - they cause confusion and frightening hallucinations, unbalanced (niezrównoważne) emotions,...

Przydatność 100% Drug addiction

Drug-addiction is a problem of the 20th century. Young people are particularly exposed to this threat. They try once or twice a cigarette with narcotic inside, then they change to injections, and day by day they become totally dependent on this deathly habit. The young look for some supernatural experiences, they hope to find a sense of life, pleasure and happiness in taking drugs, and they...

Przydatność 100% Legal drugs?

In the Netherlands, people can buy and carry a small amount of ‘soft’ drugs for their own personal use. Of course they cannot buy them in every cafeteria, shop or supermarket. They can buy them only in special cafs licensed by local authorities. Some people believe that it is a good way to control black market of drugs, in particular ‘hard’ drugs, such as heroin. Someone else claims...

Przydatność 100% Problem of drugs

Within the last twenty years drugs have become a very serious problem in Poland. Transformations connected with 'melting' the iron curtain brought to this country from the Western Europe and United States of America new trends and businesses. So did drugs. Prior to 1980, Poland had different problems and the most common was alcoholism and poverty. Nowadays we welcome the twenty first century...

Przydatność 100% Drugs should be legalize.

Drugs are one of the biggest problems in the world, because crime, addiction, or even death casesare related with them. Sometimes we ask ourselves what will happen when we legalize drugs. Maybe it will be better. In my opinion it is a good idea, beacuse at the moment, if we legalize drugs, the growing illegal industry will be stoped. I think that people who know that drugs are very...

0 odpowiada - 0 ogląda - 1 rozwiązań

Dodaj zadanie

Zobacz więcej opcji