Step-by-step explanation:
To calculate the potential energy (PE) of the apple, you can use the formula PE = weight x height, where:
PE is the potential energy (in joules).
Weight is the weight of the apple (in newtons).
Height is the height above the reference point (in meters).
You mentioned that the weight of the apple is 0.98 N, and the apple is hanging 7 meters off the ground. So, you can plug these values into the formula:
PE = 0.98 N x 7 m
PE = 6.86 joules
Therefore, the potential energy of the apple is 6.86 joules when it's hanging 7 meters off the ground.