The door knob shown is made of a 5200 kg/m3 density material. De- termine a. the surface area, b. the weight of the door knob. R40 mm R10 mm

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
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Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
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Hi, may I ask how to solve Exercise 13.15, Exercise 13.28 and Exercise 13.32? Thank you for helping me.

Exercise 13.32
The door knob shown is made of a
5200 kg/m density material. De-
termine
X.
a. the surface area,
b. the weight of the door knob.
R40 mm
R10 mm .
Transcribed Image Text:Exercise 13.32 The door knob shown is made of a 5200 kg/m density material. De- termine X. a. the surface area, b. the weight of the door knob. R40 mm R10 mm .
Exercise 13.28
Determine the amount of paint required (in litres) to paint 10,000 components if a
litre of paint can cover an area of 10 m².
56 mm
6 mm
14 mm
36 mm
72 mm
Exercise 13.15
R40 mm
Determine surface area of the
R30 mm
component shown using The-
orem of Pappus. Dimension
shown in mm.
10 mm
20 mm
quarter circle
R30 mm
R10 mm
Transcribed Image Text:Exercise 13.28 Determine the amount of paint required (in litres) to paint 10,000 components if a litre of paint can cover an area of 10 m². 56 mm 6 mm 14 mm 36 mm 72 mm Exercise 13.15 R40 mm Determine surface area of the R30 mm component shown using The- orem of Pappus. Dimension shown in mm. 10 mm 20 mm quarter circle R30 mm R10 mm
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