1. Luis is studying motion. He is using two balls-Ball
1 and Ball 2. The picture shows the equipment he
is using. To shoot each ball, Luis pulls back on the
stick (5), which compresses the spring (4). When
he releases the stick, the ball shoots forward.
Suppose Ball 1 and Ball 2 are shot from the table
with the same force. How does the potential and
kinetic energy of Ball 1 compare to that of Ball 2?

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

Inelastic is the answer your looking for.