The awe-inspiring Great Pyramid of Cheops, shown belown, was built more that 4500 years ago. Its base was 230 m on each side, it was 146 m high. and had a mass of 7.00e + 09 kg. (These numbers are slightly different today due to quarrying and some sagging). Historians estimate that in total 20000 workers spent 20 years to construct it, each working 12 hours per day, 330 days per year. (a) Which of the following is the gravitational potential energy, relative to the ground, stored in the pyramid (which we can treat as if its entire mass is located at a single point above the ground at a height of 1/4 of the pyramid's height)? OA. 3.75e + 012J OB. 2.50e + 012 J C. 2.00e + 012J OD. 1.00e +012 J OE. 4.75e + 012 J admn 7 admn

The awe-inspiring Great Pyramid of Cheops, shown belown, was built more that 4500 years ago. Its base was 230 m on each side, it was 146 m high. and had a mass of 7.00e + 09 kg. (These numbers are slightly different today due to quarrying and some sagging). Historians estimate that in total 20000 workers spent 20 years to construct it, each working 12 hours per day, 330 days per year. (a) Which of the following is the gravitational potential energy, relative to the ground, stored in the pyramid (which we can treat as if its entire mass is located at a single point above the ground at a height of 1/4 of the pyramid's height)? OA. 3.75e + 012J OB. 2.50e + 012 J C. 2.00e + 012J OD. 1.00e +012 J OE. 4.75e + 012 J admn 7 admn