Why doesn't your car radio work when you go through a tunnel under a river?

Question

Question

Answer 1

Answer #1

Because radio waves do not travel well through good electrical conductors like salt water.

answered by: Spring

Answer 2

Similar Homework Help Questions

quastion 5 Q5. A radio station transmits with wavelength of 740 m. You are listening to the radio in your car when you enter a tunnel. The depth of the tunnel below the surface of the Earth slowly...

quastion 5 Q5. A radio station transmits with wavelength of 740 m. You are listening to the radio in your car when you enter a tunnel. The depth of the tunnel below the surface of the Earth slowly increases. At what depth will you no longer be able to hear the radio? The ground has a resistivity of 100 ohm-m. Reception ceases when the signal is reduced to 0.1% of the surface value. (Hint! Penetration depth in MT survey Q6....
Why does the signal on an FM radio station often fade out as you go under...

Why does the signal on an FM radio station often fade out as you go under a metal underpass on the freeway, but an AM station does not?
(Electromagnetics) An AM radio in an automobile cannot receive any signal when the car is inside...

(Electromagnetics) An AM radio in an automobile cannot receive any signal when the car is inside a tunnel. Consider the tunnel a rectangular metallic waveguide of dimensions 6.55 * 4.19 meters. A) Given the range of frequencies for which only the dominant mode, TE10 will propagate . B)Explain why AM broadcast band signals (540 - 1600 KHz) cannot be received in the tunnel. (How far into the tunnel will a 1MHz signal travel before its signal intensity drops by 20...

When you take your 1200-kg car out for a spin, you go around a comer of...

When you take your 1200-kg car out for a spin, you go around a comer of radius 50 m with a speed of 20 m/s. The coefficient of static friction between the car and the road is 0.88. Assuming your car doesn't skid, what is the force exerted on it by static friction? Express your answer using two significant figures.
Under what energy circumstances does an electron tunnel through a potential barrier? A when the potential...

Under what energy circumstances does an electron tunnel through a potential barrier? A when the potential energy is greater than the total energy B when the potential energy is less than the total energy C when the kinetic energy is greater than the potential energ
You are listening to the FM radio in your car. As you come to astop at...

You are listening to the FM radio in your car. As you come to a stop at a traffic light, you notice that the radio signal is fuzzy. By pulling up a short distance, you can make the reception clear again. In this problem, we work through a simple model of what is happening.Our model is that the radio waves are taking two paths to your radio antenna:the direct route from the transmitteran indirect route via reflection off a buildingBecause...

when you take your 1100kg car out for a spin, you go around a corner of...

when you take your 1100kg car out for a spin, you go around a corner of radius 55m with a speed of 15m/s what is your acceleration
Please show all work and derivations! The ability of a proton to tunnel through a barrier...

Please show all work and derivations! The ability of a proton to tunnel through a barrier contributes to the rapidity of proton transfer reactions in solution and therefore to the properties of acids and bases. Estimate relative probabilities that a proton and a deuteron (Md=3.342e-27 kg) can tunnel through the same barrier of height 1.0 eV (1.6e-19 J) and length 100 pm when their energy is 0.9 eV.
Explain how soap acts as a cleansing agent? 7. 8. Why doesn't soap work well under...

Explain how soap acts as a cleansing agent? 7. 8. Why doesn't soap work well under acidic conditions?

List and Describe the steps that you would go through when redesigning your organisation's structure

List and Describe the steps that you would go through when redesigning your organisation's structure