KGON Classic Rock & 105.9 The Brew are local FM radio stations that broadcast on a frequency of 92.3 and 105.9 megahertz respectively, what is the difference in wavelengths of the radio waves emitted by thesetwo stations? (*Note a megahertz = 1x106 hertz or 1 million hertz or 1 million cycles/sec)

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

A-4.60 μc charge is moving at a constant speed of 6.80×105 m/s in the +x−direction relative to a reference frame. at the instant when the point charge is at the origin, what is the magnetic-field vector it produces at the following points.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?