Physics, 28.01.2020 19:47 rirnj005

Public television station kqed in san francisco broadcasts a sinusoidal radio signal at a power of 316 kw. assume that the wave spreads out uniformly into a hemisphere above the ground.

(a) at a home 5.50 km away from the antenna, what average pressure does this wave exert on a totally reflecting surface?

(b) at a home 5.50 km away from the antenna, what are the amplitudes of the electric and magnetic fields of the wave?

(c) at a home 5.50 km away from the antenna, what is the average density of the energy this wave carries?

(d) for the energy density in part (c), what percentage is due to the electric field?

(e) for the energy density in part (c), what percentage is due to the magnetic field?

Answers: 1

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 09:00, alisonnn101

A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?

Answers: 1

continue

Physics, 22.06.2019 10:20, brandon1888

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)

Answers: 2

continue

Physics, 23.06.2019 00:30, sarahsteelman

Define the terms moral development and moral reasoning.

Answers: 1

continue

Physics, 23.06.2019 02:10, naomicervero

What is the quantity which is measured by the area occupied below the velocity- time graph?

Answers: 2

continue

You know the right answer?

Public television station kqed in san francisco broadcasts a sinusoidal radio signal at a power of 3...