A radio station broadcasts with a carrier frequency of 920 kHz. What is the wavelength of the radio waves? a. 276 m
b. 175 m
c. 22.6 m
d. 326 m
e. 226 m

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.