$E _ { i } = E _ { \max } \sin \theta$

$E _ { i } = E _ { \max } \sin \theta$ What is the maximum peak value of a 60-hertz wave that has an instantaneous voltage of 22 volts 1.67 milliseconds before the end of one cycle? Round the answer to the nearer tenth. $\theta = 360 t _ { i } f$