7. an oil tanker heading due west, straight into a strong
wind, reaches a speed of 5 m/s and then shuts down
its engines to drift. the forward-facing flat surfaces
of the tanker catch a total of 60,000 n of force from
the wind. this wind force is pointing backwards, to
the east. the tanker's mass is 100,000 metric tons. if
the wind blows at the same strength for 5 minutes,
then how much has the wind changed the tanker's
speed? (5 points)

Identify the correct relation showing that the radius r of the orbit of a moon of a given planet can be determined from the radius r of the planet, the acceleration of gravity at the surface of the planet, and the time τ required by the moon to complete one full revolution about the planet. determine the acceleration of gravity at the surface of the planet jupiter knowing that r = 71 492 km and that t= 3.551 days and r= 670.9 × 10^3 km for its moon europa.