 #1
 76
 0
Homework Statement
1. A signal of the form x(t) = A cos(ω0t + φ) is plotted below. From the plot, deduce the following:
(a) the amplitude A, (b) the period T0, (c) the radian frequency ω0, and (d) the phase φ in radians. For part (e), find f0 in Hz by converting the radian frequency from part (c). For part (f), convert the phase from part (d) to degrees.
Homework Equations
The Attempt at a Solution
a) Amplitude = 6 (inspection)
b) Period = (218.75ms + (31.25ms)) = 250ms
c) ω=2π/T = 2π / 0.250s = 8π rad/sec
d) dφ=2π/dt = 8π/125
e) frequency = ω/2π = 8π/2π = 4Hz
f) deg = 180 φ/2π = 5.76 deg
y(t) = 6cos(8πt  8π/125)
So i am not sure on my calculation for the phase shift.
Homework Statement
Homework Equations
The Attempt at a Solution
Attachments

5.8 KB Views: 376