How large would a coin be with diameter of 3/4 in appear through a 5x lens

  h ’= 3.75 inch

Explanation:

For this exercise we use the definition of magnification which is the height of the image over the height of the object

                 m = h ’/ h

                  h’= m h

Let's calculate

               h ’= 5  3/4

              h ’= 3.75 inch

potential energy is directly proportional to height.

more height = more potential energy.

greatest increase in height = greatest increase in potential energy

where are the points with the greatest increase in height ?

has to be c-e or d-e .

it takes about 30 days for it to break down