A circular test track for cars has a circumference of 4.5km. A car travels around the track from the southernmost point to the northernmost point. -What distance does the car travel? (In km)

-What is the car's displacement from its original position? (In km)

Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?

Imagine you are standing in the antarctic during the southern hemisphere summer. the sky is clear and blue. there are no clouds in the sky. your shadow is cast on the icy ground. what is the color of the shadow?

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?