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vipsmile666
@vipsmile666
August 2022
1
10
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2 задачи по физике. Нужно нормально расписать и каждой задаче график или рисунок, в зависимости от условия
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Verified answer
3.7
Q=n*m1*g*h*ню/100%=m2*c*t
n=m2*c*t / (m1*g*h*ню/100%) = 220*460*50 / (5000*10*2*50/100) =
101,2
~ 101
3.10
Q1=Q2+A=600+1000 Дж = 1,6 кДж
кпд=100%*А/Q1=100*600/1600% =
37,5
%
кпд/100%=(t1-t2)/t1=1-t2/t1
t2/t1=1-кпд/100%
t2=t1*(1-кпд/100%)=(127+273)*(1-37,5/100) К =
250
К =
(250
- 273) С =
-23
С
3 votes
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Answers & Comments
Verified answer
3.7Q=n*m1*g*h*ню/100%=m2*c*t
n=m2*c*t / (m1*g*h*ню/100%) = 220*460*50 / (5000*10*2*50/100) = 101,2~ 101
3.10
Q1=Q2+A=600+1000 Дж = 1,6 кДж
кпд=100%*А/Q1=100*600/1600% = 37,5%
кпд/100%=(t1-t2)/t1=1-t2/t1
t2/t1=1-кпд/100%
t2=t1*(1-кпд/100%)=(127+273)*(1-37,5/100) К =250К = (250- 273) С = -23С