A dog runs 5m north, then 3m south ,then 20 m east, then 6m west then 2m north, then 4m north, then 6m east, 10m south, then 2m west, then 4m north
a. What distance did the dog travel?
b. What is his displacement from his starting place?

Explain why you think this diagram shows what happened to the carbon in the biodome.

Atriangle with equal sides of length 10 cm has -2.5-nc charged objects at each corner. part a determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. determine the direction of the electrical force exerted on the object at the top corner due to the two objects at the horizontal base of the triangle. horizontally rightward vertically downward vertically upward horizontally leftward

During cooling, the kinetic energy of the molecules falls. why does this happen? a.the motion of the molecules increases. b. the motion of the molecules slows down. c.the van der waals forces between molecules decrease d. the forces of attraction between the molecules are overcome.