A radio antenna broadcasts a 1.0 MHz radio wave with 25 kW

Last updated: 7/5/2022

A radio antenna broadcasts a 1.0 MHz radio wave with 25 kW of power. Assume that the radiation is emitted uniformly in all directions. (= 8.85 × 10^-12 C²/ N.m², c = 3.00 × 108 m/s) What is the wave's intensity 35 km from the antenna? (Express your answer in watts per meter squared to two significant figures.) What is the electric field amplitude at this distance? (Express your answer in volts per meter to two significant figures.)