Final answer:
The gravitational potential energy of a 0.5-kilogram mass dropped from a height of 150 meters is 735 joules, calculated with the formula PE = mgh using gravity 9.8 m/s^2.
Step-by-step explanation:
The question is focused on calculating the gravitational potential energy of a mass that is dropped from a certain height. To calculate this, you can use the formula for gravitational potential energy which is PE = mgh, where PE is the potential energy in joules, m is the mass in kilograms, g is the acceleration due to gravity (approximately 9.8 m/s2), and h is the height in meters. Using this formula:
PE = 0.5 kg × 9.8 m/s2 × 150 m
PE = 735 joules
Therefore, the gravitational potential energy of the 0.5-kilogram mass dropped from a height of 150 meters is 735 joules.