Aten loop coil of area 0.23 m2 is in a 0.047 t uniform magnetic field oriented so that the maximum flux goes through the coil. the coil is then rotated so that the flux through it goes to zero in 0.34 s. the average emf induced in the coil during the 0.34 s is:

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.