In the study of alternating electric current, instantaneous voltage is modeled by the equation e=Emax sin2πft, where f is the number of cycles per second,Emax is the maximum voltage, and t is the time in seconds. Find the smallest positive value of t if Emax=15, e=6, and f=120.

Determine the smallest positive value of t.

t≈___

(Round to 5 decimal places.)

ughh.abby May 12, 2021

#1**+2 **

Sub into the equation

6 = 15 sin (2pi 120 t)

6/15 = sin(240 pi t)

.4115 R = 240 pi t

.4115 R = pi t

t = .131 sec

ElectricPavlov May 12, 2021