A DVD rotates in a player at a constant speed of \(800 \mathrm{rpm}\). What are the DVD's

(a) frequency and

(b) period of revolution?
THINKING IT THROUGH. The relationships for the frequency \((f)\), the period \((T)\), and the angular frequency \((\omega)\) are expressed in Equations 7.7 and 7.8, so these equations can be used.
Equation (7.7):Equation (7.8):

Transcribed Image Text:

(relationship of frequency and period) SI unit of frequency: hertz (Hz, l/s or s) (7.7)