When a force of 19 n is applied to a spring, it elongates 0. 085 m. Determine the period of oscillation of a 4. 0-kg object suspended from this spring.

Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?