a person jogs 4.5 km east in 20 minutes and then turns around and jog 1.5 km west in 8 minutes. what is the average speed calculation and the average velocity calculation

What will a positive and a negative charge do if they are separated from each other?

Which lists the organs in the correct order as food passes from the mouth to anus?

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v