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kozerog [31]
3 years ago
11

certain part of an aircraft engine has a volume of 2.2 ft3. (a) Find the weight of the piece when it is made of copper. (b) If t

he same piece is made of aluminum, what is its weight

Physics
2 answers:
Liono4ka [1.6K]3 years ago
6 0

Answer:

(a) 54669.26 N

(b) 16473.996 N

Explanation:

(a)

From the question,

D = m/v................ Equation 1

Where m = mass of copper, D = density of copper, v =  volume of copper.

make m the subject of the equation

m = D×v...............Equation 2

Given: v = 2.2 ft³ = (2.2×0.0283) m³ = 0.6226 m³

Constant: D = 8960 kg/m³

substitute into equation 2 above

m = 8960×0.6226

m = 5578.496 kg

W = mg

W = 5578.496×9.8

W = 54669.26 N

(b)

Also

Density= mass/volume.

D = m/v ............. Equation 3

Where D = density of aluminum, m = mass of aluminum, v = volume

make m the subject of the equation

m = D×v............. Equation 4

Given: v = 2.2 ft³ = 2.2×0.0283 = 0.6226 m³

Constant: D = 2700 kg/m³

Substitute into equation 4

m = 2700×0.6226

m = 1681.02 kg

But

W = mg

where W = weight, g = acceleration due to gravity

W = 1681.02×9.8

W = 16473.996 N

Blababa [14]3 years ago
4 0

Explanation:

Below is an attachment containing the solution

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