o communications, one form of modulation (putting information such as a voice signal onto a carrier radio signal) is amplitude modulate or AM. A baseband voice signal f(t) modulated onto a radio carrier at angular frequency wc of amplitude A gives a modulated waveform of the form : g (t )equals A cos (omega subscript c t )open square brackets 1 plus f (t )close square brackets If the Fourier Transform of f(t) is F(w), find the Fourier Transform of g(t).

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.

During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?

The velocity of a car traveling in a straight line increases from 0 meters/second to 30meters/second in 8 seconds. what is the average acceleration of the car?