A child holds a ball of mass m a distance h above the ground. Check all of the following statements that describe potential energy correctly in this case. (Assume potential energy is zero when the ball is on the ground.)
1. The ball alone has potential energy mgh.
2. The system of the earth and the ball together have potential energy mgh

The purpose of a lab is to do your "expirements" the importance of the topic is so you can now what the story is about and the last one is because no one is me with my question ( what is 3 over 4 x - 9 = 27 maybe you can )

Ibelieve the answer is b

Iassume the answer is 75 feet. inwards to outwards rather than outwards to inwards. probably be 75.hachures are stokes drawn in direction of the steepest slope. a series of short parallel lines drawn on a map to indicate topographic relief. it is actually called hachures on contour lines. the small marks in the center of the feature are called hachures.observe the picture attached

Did you ever figure out the right answers since you asked?