An inductor is connected to an AC source. If the inductance of the inductor is 0.528 H and the output voltage of the source is given by Δv = (120 V)sin[(21.0 s−1)t], determine the following.
(a) the frequency of the source (in Hz)
(b) the rms voltage across the inductor (in V)
(c) the inductive reactance of the circuit (in Ω)
(d) the rms current in the inductor (in A)
(e) the maximum current in the inductor (in A)

An object thrown vertically upward from the surface of a celestial body at a velocity of 36 m/s reaches a height of sequalsminus0.9tsquaredplus36t meters in t seconds. a. determine the velocity v of the object after t seconds. b. when does the object reach its highest point? c. what is the height of the object at the highest point? d. when does the object strike the ground? e. with what velocity does the object strike the ground? f. on what intervals is the speed increasing?

Afigure skater is rotating at a rate of 200 revolutions per minute. what is the angular speed, in units of rad/s? 20.9 12000 200 3.33

What is a carrier wave and how does it affect what you hear on the radio