An ant carries food at a speed of 1 cm/s. how long will it take the ant to carry a cookie crumb from the kitchen table to the ant hill, a distance of 50 m? express your answer in seconds, minutes and hours.

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.