ЯсноПонятно24

U = 3 Вт / (U / (ρ * 10 см / 0.01))

To simplify the expression, we can first multiply both sides by the denominator on the right side:

U * (U / (ρ * 10 см / 0.01)) = 3 Вт

Next, we can simplify the expression in the parentheses:

U * (U / (ρ * 10 см / 0.01)) = U * (U / (ρ * 1000))

Now, we can simplify further by dividing U by (ρ * 1000):

U * (U / (ρ * 1000)) = 3 Вт

Therefore, the simplified expression is:

U^2 / (ρ * 1000) = 3 Вт

This is the final simplified expression for U.