A bank offers a credit plan that lists 2% interest for the first year of a loan. If a customer takes the loan and 16 years later
1 answer:
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Answer:
Intensity
Explanation:
The intensity of a sound wave is equal to the ratio between to the power emitted by the source divided by the area of the spherical surface through which the wave propagates:
where
P is the power
is the area of the spherical surface
r is the distance from the source
As we see from the formula, the intensity is inversely proportional to the square of the distance from the source:
so, intensity is the correct answer.
Answer:
the required value is
Explanation:
Given that,
mass, m = 1kg
spring constant k = 21N/M
damping force =
By Newtons second law ,
The diffrential equation of motion with damping is given by
substitute the value of m =1kg, k = 21N/M, and
suppose the equation of the form ,
and the auxilliary equation is given by
The general solution for the above differential equation is
Derivate with respect to t
(a)
since time is 0 then mass is one meter below
so x(0) = 1
Also it start from rest , that implies , velocity is 0 and time is 0
substitute the initial condition
Solve the above equation to get C₁ and C₂
substitute for C₁ and C₂ in general solution
Thus the required value is