Answer:
according to Miners method the new endurance limit S[tex]_e[/tex]" is 45 kpsi
Explanation:
Given the data in the question;
the amplitude stress σₐ = 35 kpsi
the mean stress for 12(10³) cycles σ[tex]_m[/tex] = 30 kpsi
the ultimate tensile stress S[tex]_{ut[/tex] = 85 kpsi
endurance limit of S[tex]_e[/tex] = 45 kpsi
so, we calculate the reversing stress for Gerber criteria
σ[tex]_{rev[/tex] = σₐ / [ 1 - ( σ[tex]_m[/tex]/S[tex]_{ut[/tex])²
we substitute
σ[tex]_{rev[/tex] = 35 / [ 1 - ( 30/85)²]
σ[tex]_{rev[/tex] = 35 / [ 1 - 0.124567]
σ[tex]_{rev[/tex] = 35 / 0.875433
σ[tex]_{rev[/tex] = 39.98 kpsi
Using Miners Method;
the reversing stress ( 39.98 kpsi ) is less than endurance limit ( 45 kpsi )
σ[tex]_{rev[/tex] < S[tex]_e[/tex]
According to Miners method, if reversing stress is less than endurance limit, then the endurance limit has not reduced and new endurance limit remains the same.
Hence, according to Miners method the new endurance limit S[tex]_e[/tex]" is 45 kpsi
Tech A says that a mechanical pressure regulator exhausts excess fluid back to the transmission pan. Tech B says that if the transmission pan is removed, the magnet must be replaced. Who is correct?
Answer:
A
Explanation:
Consider a layer of insulation installed around a steam pipe. The radius of the pipe is R1 and the thickness of the insulation is R3-R1.The stream is maintained at a temperature TW and the air surrounding the insulation is at a temperature To and flows cross wise over the pipe. The air is flowed over the steam pipe at high enough velocity so a thermal boundary layer develops over the surface described by a heat transfer coefficient h.
Required:
Beginning with the heat equation, calculate the total quantity of heat being conducted per unit time (heat flow) through the insulation, Q (units: energy/time).
Answer:
hmmmmmmmmmmmmmmmmmmmmmmmmmmm
Explanation:
........
2.3
What does NBT stand for?
Answer:
Named Binary Tag ( NBT)
Explanation:
The format is designed to store data in a tree structure made up of various tags
The meaning of the given word NBT is called; National Benchmark Test.
What is the meaning of NBT?The meaning of the given word NBT is called National Benchmark Test.
NBT ( national benchmark test ) is defined as a national test which must be written and passed by High school students that intend to go to the university ( i.e. passport to the university ).
Read more about NBT at; https://brainly.com/question/26887507
4.In a hydroelectric power plant, 100 m3/s of water flows from an elevation of 120 m to a turbine, where electric power is generated. The electric power you get out from the 80% efficiency turbine is known to be 50 MW, what is the rate of irreversible loss in the piping system (in MW unit)
Answer:
The rate of irreversible loss will be "55.22 MW".
Explanation:
The given values are:
Elevation,
h = 120 m
Flow of water,
Q = 100 m³/s
Efficiency,
= 80%
i.e,
= 0.8
Efficiency turbine,
= 50 MW
Now,
Without any loss,
The power generated by turbine will be:
⇒ [tex]P=\delta gQh[/tex]
On substituting the values, we get
⇒ [tex]=1000\times 9.8\times 100\times 120[/tex]
⇒ [tex]=117.72 \ MW[/tex]
Power generated in actual will be:
= [tex]\frac{50}{0.8}[/tex]
= [tex]62.5 \ MW[/tex]
Hence,
Throughout the piping system,
The rate of irreversible loss is:
= [tex]Power \ generated \ by \ turbine-Power \ generated \ in \ actual[/tex]
= [tex]117.72-62.5[/tex]
= [tex]55.22 \ MW[/tex]
Please I need help with this
Photosynthesis energy is stored in the cells of green plants through
process called ______?