7) A) Will a cannonball hit the ground at approximately the same location if it is fired in the same direction at an angle of 20 degrees and then at
an angle of 50 degrees?
B) What angle should one fire a cannon to achieve maximum range?

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.

Answer(b) 60 miles per hour;