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BlackZzzverrR [31]
3 years ago
11

A concrete column has a diameter of 370 mmmm and a length of 3 mm . If the density (mass//volume) of concrete is 2.45 Mg/m 3 Mg/

m3, determine the weight of the column in pounds. Express your answer using three significant figures.
Mathematics
1 answer:
erastovalidia [21]3 years ago
4 0
<h2>Weight of column is 1750.03 pounds</h2>

Step-by-step explanation:

Diameter of column,d = 370 mm = 0.37 m

Length of column, l = 3 m

Volume of column,V = Base area x Length

\texttt{Base area = }\frac{\pi d^2}{4}\\\\\texttt{Base area = }\frac{\pi \times 0.37^2}{4}=0.108m^2

Volume of column,V = Base area x Length = 0.108 x 3 = 0.324 m³

Density of concrete, d = 2.45 Mg/m³ = 2450 kg/m³

Mass of concrete, m = Volume of column x Density of concrete

Mass of concrete, m = 0.324 x 2450 = 793.8 kg = 1750.03 pounds

Weight of column is 1750.03 pounds

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7-(5-3(2+6(2^2)))

When a question has multiple signs, the rule of BODMAS is used. That is, Bracket Of Division Multiplication Addition and Subtraction. The question above will therefore be solved in that order.

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Rewriting the question will give

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