Acircular wire loop has a radius of 7.50 cm. a sinusoidal electromagnetic plane wave traveling in air passes throughthe loop, with the direction of the magnetic field of the wave perpendicular to the plane of the loop. the intensity of the wave atthe location of the loop is 0.0275 w> m2, and the wavelength of thewave is 6.90 m. what is the maximum emf induced in the loop

Intensity of electromagnetic wave is given as

given that

here we know that

now we have

now we will have

frequency of wave is given as

now the induced EMF is given as

i think it would be 5

the moving of the box is a result of centripetal force. think of that  as a car or a truck in this case creates a turn, the force of friction performing upon the turned wheels of the car runs centripetal force obligatory for circular motion for the things inside it.