13.33 is the answer just divide 4/30 and there ya go! :D Hope this helps!
Answer:
the correct answer is a
Step-by-step explanation:
Answer:
C=0.46 s⁻¹
Step-by-step explanation:
The general equation for the damped harmonic system given as

Where
A= Amplitude

C=Damping constant
Lets take at time t= t₁, A= K
And at time t= t₁+3 s ,A= K/4

-----------1
-------------2
From equation 1 and 2



C=0.46 s⁻¹