Question

how do i find w of this 97.6 +32.5 sin(wt)

The heart pumps blood at a regular rate of about 65 pulses per minute. The heart volume is about 130 ml, and it pushes out about 1/2 its volume (65 ml) with each beat. Use a model of the following form to simulate the volume of blood, B(t), in the heart at any time t:
B(t) = a + b\sin(\omega t),