Find a sinusoidal equivalent to 7.21 sin(wt) + 11.2 cos(wt)

Write each of the following sinusoidal expressions as a single, rectangular form, complex phasor. Round all answers to two decimal places. 10 cos(wt + 45°) +j 8 sin(wt - 45°)+3 cos(wt + 60°) +j

Find the sinusoidal and the rms phaser expression Vs = 120 sin (377t+0 degrees)

Problem # 5 Consider the sinusoidal voltage and current shown below: v(t) = 170 cos(120zt - 60°) V and i(t) = 60 sin(120xt - 30°) A. Plot v(t) and i(t) and determine if the current is leading or lagging the voltage. Find the Phasor representations of both voltage and current. Determine the rms values of both voltage and current. Determine the apparent power, S, P, Q, pf, and r.f. a) b) c) d)

Find the period of repetition of the following sinusoidal waveforms and express them in phasor repre- sentation: vi(t) = 12 cos(314t + 10°) V v2(t) = 4 sin(2765t – 75°) V i1(t) = -0.2 sin(600rt – 100°) A i2(t) = -2.5 cos(377nt + 120°) A