If during strenuous exercise your heart rate is 155 beats per minute, determine the following. (a) the frequency of your heartbeat Hz (b) the period of your heartbeat Submit Answer [-/2 Points] DETAILS OSCOLPHYS1 16.P.022.WA. MY NOTES (b) Determine if the mass is moving in the positive or negative x direction at t = 4.84 s? O positive x direction O negative x direction ASK YOUR TEACHER A mass attached to the end of a spring is oscillating with a period of 2.25 s on a horizontal frictionless surface. The mass was released from rest at t = 0 from the position x = 0.0440 m. (a) Determine the location of the mass at t = 4.84 s?