Homework Answers
a)
A = 8
======
b)
time period of wave,
T = 0.2 seconds
=======
c)
f = 1/ T = 1/ 0.2 = 5 Hz
========
d)
x = A sin ( pi/2 + 2 pi f t)
x = 8 cos ( 2* 3.14* 5* t)
x = 8 cos ( 31.4 t)
========
do comment in case any doubt, will reply for sure.. Goodluck
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