a 2.2 kilogram mass is pulled by a horizontal 30 newton force to the right through a distance of 5 meters. what is the amount of work done on the object's mass?

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?