On a cruise ship traveling 20° southwest (a bearing of
250°) at a speed of 6.0 m/s, a passenger jogs at 2.5 m/s
east. What is the magnitude of the passenger's resultant
velocity relative to Earth.

Which of the following best describes internal energy? a. the difference between the kinetic and potential energies of the particles in a system b. the sum of the kinetic and potential energies of the particles in a system c. the sum of the kinetic and thermal energies of the particles in a system d. the difference between the kinetic and thermal energies of the particles in a system