Moira is drawing the electric field lines around a pair of charges. one charge is positive, and the other charge is negative. how should she draw the field lines? a) away from each charge and meeting in the middle b) away from each charge and curving away from one another c) away from the positive charge and toward the negative charge d) away from the negative charge and toward the positive charge

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?