1.Jakie promieniowania emituje zwykła żarówka , a jakie żarówka energooszczędna ?
2.Co to jest wiązka światła i jakie są jej rodzaje ?
3.Jak rozchodzi się światło w ośrodkach optycznych jednorodnych , a jak w niejednorodnych ?
4.Jak powstaje miraż dolny i górny i gdzie można go zobaczyć ?
5. Czy prędkość światła jest niezmienna – krótko uzasadnij odp

What must be the same for any two resistors that are connected in series ? a. the potntial diffrence across each b. the rate at which charge moves through each c. the rate at which energy is used by each d. the resistance to the flow of charge of each

Which type of reaction is shown in this energy diagram? energy products activation energy reactants time o a. endothermic, because energy is released to the surroundings o b. exothermic, because energy is absorbed from the surroundings o c. exothermic, because energy is released to the surroundings o d. endothermic, because energy is absorbed from the surroundings

2) the sun is wonderful source of energy. it is renewable and natural with few dangers. solar cells rely on the sun for energy. these cells would be more practical to use if they were