Answer:
A
Explanation:
A because you are continuing to keep moving and thinking.
Answer:
Plain Bearings and Rolling Element Bearings -
Explanation:
two different type of bearing are:
1) Plain Bearings - Plain bearings are the easiest form of bearings and consist of only the layer of the bearings without rolling components.
2)Rolling Element Bearings - Rolling element bearings use balls or rollers between two rings – allowing movement with little rotating and sliding friction. These type of bearings include bearings for balls and rollers.
Answer:
a
The poles and corresponds to the short period mode
b
The poles and corresponds to the phugoid mode
Explanation:
The explanation is shown on the first and second uploaded image
Answer:
a) The proportional limit is 2.99MPa.
b) The modulus of elasticity is 0.427GPa.
C) The poisson´s ratio is 0.021
Explanation:
a) The proportional limit is the maximum stress for wich a tension bar stops acting as a linear material in a stress-strain curve. So this stress can be obtained as:
b) The modulus of elasticity E is the proportion between the strain and the stress in the linear section of the stress-strain curve.
The strain in for the proportional limit is:
Therefore:
c) The Poisson´s ratio is the negative proportion between the transverse strain and axial strain.
In this case, the transverse strain is:
So the poisson´s ratio is: