Choose the correct words
1 did you get / were you getting upset while you read / were reading my poem?
2 when i walked into the room, sam
read / was reading a book and jim
solved / was solving a crossword puzzle.
3 my bike broke down / was breaking
down so i got / were getting the bus to work
4 i saw / was seeing pippa while i
walked / was walking home.
5 we drove / were driving through the desert when our car broke down /
was breaking down.
6 what did you do / were you doing after i called / was calling you last night?
7 the last time i looked / was looking out of the window, i saw / was seeing some clouds.
8 did you see / were you seeing me while i danced / was dancing with аlex?
0,84 кВт другий чайник
Объяснение:
Процес нагріву води в чайниках можна допустити як виконану роботу першим і другим чайниками. Робота у нас виконана , чайники оба нагріли воду , але перший за 6 хв , другий за 10 хв. Перший скоріше , бо його потужність є більшою , ніж другого(це ми допускаємо як фізичне явище), хто сильніший , той і прудкіший. Знаючи потужність 1 чайника, знайдемо його роботу, А1=Р*т=1,4 кВт*6=8,4кВт*год , А1=А2 , А2=х*10=8,4 х=8,4/10=0,84кВт Відповідь: другий чайник має потужність 0,84 кВт
Вода в бак водонапорной башни подается насосами