Капля воды обладает зарядом q=−6,224⋅10−16 Кл. Избыток или недостаток электронов наблюдается у заряженного тела? Чему равно количество избыточных электронов (электронов, которых не хватает)?
I live in a house. I really like my house. It's small, but I'm not small either. When you enter the house, you can see a small kitchen. In the kitchen, we cook and eat. I spend a lot of time in the kitchen Because I like to eat. the next room is the hallway. in the hallway there is a large closet on the entire wall. there are no Windows. we go through the hall to the other rooms. our hall is very large. there is a large sofa. the hall is very bright because there are many Windows. there are many different colors in the hall. my parents ' and sister's room is very large. They have one room. There is a large TV hanging there, it is located above the bed and there is a bedside table to the right of the bed. In the second half of the room is my sister's sofa. my room is the smallest. I even like it. my room has a pull-out sofa, a table, and a TV. there is a courtyard around the house. "My mother likes to grow flowers. we have a sauna in our yard. and we also have a dog that lives in a booth that dad built. We have a garage for my father's car and tools. We also store our things there.
Объяснение:
m = 8,05 кг = 8050г.
V = 1000 см^3
ρр = 13,6 г/см^3
ρс = 2,5 г/см^3
Объем ртути - vr
Объем стекла - vc = V - vr (из общего объема вычитаем объем ртути)
масса ртути
mr = vr*pp
масса стекла
mc=vc*pc = (V - vr)*pc
уравнение для общей массы
m = mc+mp
m = (V - vr)*pc + vr*pp
подставим известные значения
8050 = (1000 - vr)*2.5 +vr*13.6
8050 = 2500 - vr*2.5 +vr*13.6
5550 = 11.1*vr
Отсюда объем ртути
vr=5550/11.1= 500 cм^3
тогда масса ртути
mr=pp*vr=13.6*500= 6800г.
масса пустой стеклянной колбы
mc= (V - vr)*pc = (1000-500)*2,5= 1250 г.
Найдем во сколько раз масса ртути больше массы пустой колбы
mr/mc = 6800 / 1250 = 5.44 Раза
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I live in a house. I really like my house. It's small, but I'm not small either. When you enter the house, you can see a small kitchen. In the kitchen, we cook and eat. I spend a lot of time in the kitchen Because I like to eat. the next room is the hallway. in the hallway there is a large closet on the entire wall. there are no Windows. we go through the hall to the other rooms. our hall is very large. there is a large sofa. the hall is very bright because there are many Windows. there are many different colors in the hall. my parents ' and sister's room is very large. They have one room. There is a large TV hanging there, it is located above the bed and there is a bedside table to the right of the bed. In the second half of the room is my sister's sofa. my room is the smallest. I even like it. my room has a pull-out sofa, a table, and a TV. there is a courtyard around the house. "My mother likes to grow flowers. we have a sauna in our yard. and we also have a dog that lives in a booth that dad built. We have a garage for my father's car and tools. We also store our things there.