In Example 6.11, we compared the gravitational potential energy of a 20-W light bulb to the electrical energy consumed when it is turned on. Repeat that calculation, but now assume the light bulb is turned on for one day. Find the height h through which the light bulb would have to fall for the change in gravitational potential energy to equal the electrical energy consumed by the light bulb. Compare this answer to the height of Mount Everest. Assume you can use the relation PE_grav = mgh.