Question

1. the melting point of copper is 1981°f, what is the melting point in degrees celsius?

Explanation:

Step1: Recall the formula to convert Fahrenheit to Celsius

The formula to convert temperature from Fahrenheit (\(F\)) to Celsius (\(C\)) is \(C=\frac{5}{9}(F - 32)\).

Step2: Substitute the given Fahrenheit value into the formula

We are given \(F = 1981\). Substitute \(F = 1981\) into the formula:
\(C=\frac{5}{9}(1981 - 32)\)
First, calculate the value inside the parentheses: \(1981-32 = 1949\).
Then, calculate \(\frac{5}{9}\times1949\). \(\frac{5\times1949}{9}=\frac{9745}{9}\approx1082.78\) (rounded to two decimal places).

Answer:

The melting point of copper in degrees Celsius is approximately \(1082.78^{\circ}C\) (or exactly \(\frac{9745}{9}^{\circ}C\)).