A running back practices for his upcoming football game by running drills. He runs forward 62.4 yards, and runs backward for 18.5 yards, then runs forward again for 18.3 yards. What is the magnitude of the athlete's displacement?

Which feature of a heating curve indicates a change ofn state

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?

Two 2.0-cm-diameter disks face each other, 1.0 mm apart. they are charged to ±10 nc. what is the electric field strength between the disks? a proton is shot from the negative disk toward the positive disk. what launch speed must the proton have to just barely reach the positive disk?