Acardiac defibrillator stores 1275 j of energy when it is charged to 5.6kv what is the capacitance? o 11.3 pf 96.1 pf o 813 f

Explanation:

The answer is not among the given options. However, this is a good example of the relation between the energy stored in a capacitor and its capacitance , which is given by the following equation:

  (1)

Where:

is the voltage

is the capacitance in Farads, the value we want to find

Isolating from (1):

  (2)

  (3)

Finally:

This is the capacitance of the cardiac defibrillator

the box does not move because you need to use a force greater than 300 n. you are only using 50 n. it needs to at least be 301 n for the box to move because then it is an unbalanced force and it will move the way that the greater force is pushing it. if you use only 300 n it will be a balanced force and will not move because the force you are exerting on the   box is the same as its force.

hope this !

im sorry if i went too in depth, i am going to include a link to a video on khan academy that will explain this.   hope that you like the video and that it explains more in detail to you.

that is the link.