Primitive transportation and storage systems that make local distribution ineffective if not impossible, and the lack of clean water and the lack of effective sewer systems are all examples of the barrier called physical & environmental barriers.
<h3>
What are the problems with having physical & environmental barriers?</h3>
Time, Place, Space, Climate, and Noise are the key environmental/physical constraints. Some are simple to change, while others may prove to be difficult.
Physical barriers are essentially defined by three primary factors: environment, distance, and medium unawareness. Environmental barriers, on the other hand, are connected to variables that occur in the current environment.
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Answer:
The major and minor stresses are as 2060.59 psf, -310.59 psf and 1185.59 psf.
Explanation:
The major and minor principal stresses are given as follows:


Here
is the normal stress which is 1750 psf
is 0
is the shear stress which is 800 psf
So the formula becomes

Similarly, the minimum normal stress is given as

The maximum shear stress is given as

Answer:
24 hours
Explanation:
you must exchange insurance details after a collision if someone is injured. Otherwise you must report the collision to us as soon as possible (and no later than 24 hours). Although you must report such a collision straight away you should always seek medical help in the first instance.
Serviceable wheel bearings can be repacked by removing the dust cap and the cotter pin must be replaced with a new one every time it is removed. Therefore, both Tech A and B are correct.
Sealed bearing assemblies are typically prefilled with lubricant. They also make a more reliable and consistent installation process due to the fact that every into comes preset at the proper clearance.
Furthermore, the serviceable wheel bearings can be repacked by removing the dust cap, filling it with grease, and reinstalling it. Also, cotter pin must be replaced with a new one every time it is removed.
Therefore, both tech A and B are correct.
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Work done = -19.7 KJ
Heat transferred = 17.4 KJ
Explanation:
Given-
Temperature, T = 27°C
Volume, V = 0.2 m³
Pressure,
= 1 bar
= 4 bar
pV¹°¹ = constant
From superheated propane table, at
= 1 bar and
= 27⁰C
= 0.557 m³/kg
= 473.73 KJ/kg
(a) Work = ?
We know,
V1¹°¹ = p2V2¹°¹

At = 4 bar and v = 0.158 m³/kg
u2 = 548.45K J/kg
To find work done in the process:

(b) Heat transfer = ?
