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nbezchitov
@nbezchitov
July 2022
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Масса медной катушки 890г. Какова длина проволоки,если ее диаметр равен 1 мм,а плотность меди 8,9 г/см3?
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hassosh05
Ρ=m/V
V=L*S
ρ=m/LS
L=m/ρS
подставляем числа S=1мм²=0,01см²
L= 890г/(8,9*0,01)=10000см=100м
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Answers & Comments
V=L*S
ρ=m/LS
L=m/ρS
подставляем числа S=1мм²=0,01см²
L= 890г/(8,9*0,01)=10000см=100м