What is the difference in gravitation potential energy when a 3.5 kg box is raised from a height of 1.2m to height of 4.0m?

96.138 J

Explanation:

Ep= mGh (on 1.2 m high)

Ep= 3.5kg*9.81*1.2

Ep1=41.202 J

Ep=mGh (on 4m high)

Ep=3.5*9.81*4

Ep2=137.34J

Ep= Ep2-Ep1

Ep=96.138J

the answer is a. hope this .

the total distance that martina travels that day is

(distance from home to mom's office) plus (distance from mom's office to school)

plus (distance from school to library) plus (distance from library to friend's house)

plus (distance from friend's house to martina's house).

(we don't know what any of these distance actually is.)