Use the following picture to answer question 30: 30. the picture above shows 3 sets of balloons, all with a particular charge. which of the picture(s) is true? explain. then explain why the other 2 pictures are incorrect. make sure to explain all 3 sets. use the following picture to answer question 31: 31. the bars in the drawing above are magnets. according to chapter 21, which of the following picture(s) is true? explain. then explain why the other 2 pictures are incorrect. make sure to explain all 3 sets. 32. based on how the book describes a heat pump in sec 16.3, how does a heat pump prove the law of conservation of energy? hint: think about a refrigerator. 33. a bird flies from the south pole to the north pole. part of the journey is 1000 miles that takes 2 weeks. what is the bird’s velocity in that time? show work for credit and include final units.