Consider the position vs. time graph for a person running that is shown below. What can you conclude
about this person's displacement and average velocity
using the graph? Explain your answer.
image uploaded by user
25
© 20
15
Position (m)
10
5
0
0 1 2 3 4 5 6 7 8 9 10
Time (s)

You are traveling in a car going at a constant speed of 100km/h down a long, straight highway. you pass another car going in the same direction which is traveling at a constant speed of 80km/h. as measured from your car's reference frame this other car is traveling at −20km/h. what is the acceleration of your car as measured from the other car's reference frame? what is the acceleration of the other car as measured from your car's reference frame?

Where do magnetic lines of force enter earth?

You charge a parallel-plate capacitor, remove it from the battery, and prevent the wires connected to the plates from touching each other. when you increase the plate separation, what happens to the following quantities?