linear freq problems?

Question

2. Given f = 255 Hz, what is ω?
________________ [rad s-1]
Answer with Five Sig Figs or N/A if appropriate.

I GOT 1602.2, IS THAT RIGHT???

ALSO:

6. Given ω = 690 [rad s-1], what is the linear frequency?
____________ [Hz]
Use Three Sig figs.

HOW WOULD YOU DO THIS ONE?? PLEASE EXPLAIN, THANKS

Answer 1

Jeez, man, you're doing these problems and nobody told you about the 2pi relationship between freq (Hz) and rad/s? I suspect some classes were missed or homeork undone. Get tutoring.
For the record, ω = 2pi*f
pi = 3.1415926536 (to enough sig figs to last you a lifetime).