Example, cont.

vq = rw ar = rw2

f = w/2p and T = 1/f .

r = 93 million miles = 1.49 x 1011 m;

T = 365 days = 3.15 x 107 sec.

Using T = 1/f , we can find f:

f = 1/T = 1/ 3.15 x 107 sec = 3.17 x 10-8 Hz.

Using f = w/2p, we can find w: w = 2pf = 2*3.14* 3.17 x 10-8 Hz = 1.99 x 10-7rad/sec

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