Answer:
Hello your question lacks some vital parts here is the complete question
Determine Er(10) for this material (in Mpa) If the initial stress level was 2.76 Mpa (400psi) which dropped to 1.72 Mpa(250psi) after 60s
Answer: Er(10) for the material = 2.55 / 0.69 = 3.695 ≈ 3.70 Mpa
Explanation:
The equation of stress decay for viscoelastic polymers
equation 1
t = elapsed time = 60s
T = relaxation time
input the given values into the equation
1.72 = 2.76 exp ( -
exp ( - 60/T ) = 1.72/2.76 therefore T = 126.87S
Considering 10s for t
taking Ln of both sides of the equation
Ln
therefore = 370 psi
To determine the Er(10) for the material in (Mpa) we apply the relaxation modulus equation
Er(t) =
where Eo = strain level = 0.69
Er(t) = E(10)
= 2.55 Mpa
input this variables into equation
Er(10) for the material = 2.55 / 0.69 = 3.695 ≈ 3.70 Mpa
Answer:
Option B
Select the Marketing User checkbox in the user record
Explanation:
The user settings may limit users who can view and set up advanced campaigns. In case there's no keyboard shortcut already programmed to create a new campaign and also the button for creating new campaign isn't visible, the best way to go about it is by selecting the marketing user checkbox in the user record and create a new campaign,
Answer:
0.75 kg
Explanation:
c = Damping coefficient = 3 kg/s
x = Displacement of spring = 0.5 m
F = Force = 1.5 N
From Hooke's law we get
In the case of critical damping we have the relation
Mass that would produce critical damping is 0.75 kg.
Answer:
Check the explanation
Explanation:
For ideal regeneration heat loss in cooling aqual to heat gain in compression so temperature Tb=Td as can be seen in the step by step solution in the attached images below.
Answer:
I believe that it is E. Write Verilog HDL models for the machine based on the state diagram in (a) and the D flip-flop sequential circuit that you implement in (b).