Answer:
Logarithmic decrement is equal to 0.182
Explanation:
given,
amplitude decay = 9 dB
number of cycles = 12 cycles
mass of the system = 7 kg
spring stiffness = 3000 N/m
logarithmic decrement = ?
now,
logarithmic decreament = 
= 
=ln (1.2)
= 0.182
Hence, Logarithmic decrement is equal to 0.182
Answer:
a. 0.9263
b. 0.4872
c. 13.83kN/m
Explanation:
moisture content (ω) = 0.32
void ratio (e) = 0.95
specific gravity (
) = 2.75
the degree of satruation (S) =
=0.32×2.75/0.95 = 0.9263
b. porosity (n) =
= 0.95/(0.95 + 1)= 0.4872
c. dry unit weight (γ
) = 
taking specific unit weight of water (V
)= 9.81kN/m
γ
= 2.75 × 1000/(1 + 0.95) = 13.83kN/m
Answer: Incoherent question
Explanation: This is an act of plagiarism at subjecting the tutor to unnecessary stress at answering the purported question.
Answer:
Plain Sawn. At least 95 percent of all hardwood lumber commercially produced in the U.S. is flat or plain sawn. ...
Quarter Sawn. In this method, the log actually is cut into quarters, then sawn quarter by quarter. ...
Explanation: