maestro6838
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Добрые люди , : ) льдина, имеющая форму прямоугольного параллелепипеда толщиной h=1 м, плавает в пресной воде. какова высота h надводной части льдины? плотность льда ρл=900 кг/м3, плотность воды ρв=1000 кг/м3, g=10 м/с2. ответ выразить в сантиметрах, округлив до целых/

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Ответы

ganul
Дано H=1 м    pл=900 кг/м3    pв=1000 кг/м3    h- ?

условие плавания

m*g=pв*g* Vв
V*pл=pв*(H-h)*S
H*S*pл=pв*(H-h)*S
pв*h=H*(pв-pл)

h=H*(pв-pл)/pв=1*100/1000=0,1 м=10 cм
Stepanovich_Makarov

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.

Михаил736

Привет очень сложно бяло моему перекладачу но справился )))хахаха

I live at home. I really like my house. it is small, but I am not small either. When you enter the house, you 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 entrance hall. in the hallway there is a large closet over the entire wall. there are no windows. through the hallway we go into other rooms. our room 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 room. The room of my parents and sister is also large. a large TV hangs to the room, it hangs above a large soft bed and there is a bedside table to the right of the bed. and in the second half of the room is my sister’s sofa. my room is the smallest. I even like it. To my room there is an extendable sofa, a table and a TV. there is a yard around the house. My mother loves to grow flowers. we have a bathhouse 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.

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Добрые люди , : ) льдина, имеющая форму прямоугольного параллелепипеда толщиной h=1 м, плавает в пресной воде. какова высота h надводной части льдины? плотность льда ρл=900 кг/м3, плотность воды ρв=1000 кг/м3, g=10 м/с2. ответ выразить в сантиметрах, округлив до целых/
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