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John and Kevin are taking a road trip along the607 from Ottawa to Kingston. They are listening to thelatest hit song “Hello” by James Young on the radio...

Question

John and Kevin are taking a road trip along the607 from Ottawa to Kingston. They are listening to thelatest hit song “Hello” by James Young on the radio, whichuses two transmission towers near each other to send out radiosignals. They notice that the signal fades in and out as theydrive. Explain why this occurs.

John and Kevin are taking a road trip along the 607 from Ottawa to Kingston. They are listening to the latest hit song “Hello” by James Young on the radio, which uses two transmission towers near each other to send out radio signals. They notice that the signal fades in and out as they drive. Explain why this occurs.



Answers

A search plane takes off from an airport at 6: 00 A.M. and travels due north at 200 miles per hour. A second plane leaves that airport at the same time and travels due east at 170 miles per hour. The planes carry radios with a maximum range of 500 miles. When (to the nearest minute) will these planes no longer be able to communicate with each other?

For this problem, on the topic of alternating current circuits were told that a certain place in Wisconsin, there are a large number of radio broadcasting towers. Now the radio reception there is not good because unwanted stations can often interfere with the station that is tuned in. So if we are to suppose that a car radio, tuna tuna is a resonant oscillator and its resonant frequency is adjusted to that of the desired station. We want to explain this phenomenon that is known as cross talk. Now the response of the tuna at any frequency is related to the amplitude of the input signal and how close to resonance the input signal is. So by design, the response should be dominated by the signal that is at resonance. However, if the signal at some other non resonant frequency is large and somewhat close to the resonant frequency, this can cause cross talk to occur occur.

These questions. We have Mary and needed driving on the freeway in the same direction. Okay. Truck noon. The cars are side by side. Then Mary is troubling. A constancy needed speeding up. No need to explain why. Uh huh. How this can happen. Explain how this could happen. So I'm going to draw situation. I'm going to draw freeway. Freeway. Really? Yeah. So, uh, so we have needed driving up freeway that you never in 68 year, then at 11. 58 AM Yes. Well, Mary is here company. Okay, So, uh, son Aidan is traveling at slow speed, but exile already and then a child. Noone, uh, Chuck Norris both Mary and made the meat it because I said I say, Hey, so Mary has to travel, maybe it around 100 meters per second. Uh, but as needn't drive up the freeway at this point. So Mary is traveling at a uniform speed. So this is how many suspects I can at this point in Medan. Could be traveling at maybe 40 meters per second, but speeding up. Yeah. Yeah. So So this is this narrow? Uh, so say at 11. 58 pm need any string out the freeway. Mary is already driving along every way in a trap. Noon? Uh, do you mean, uh, really, At this point? Yeah. And at this point, married. What kind of would take Nathan?

All right, so we have Kathleen and we have Cade and we have a walkie talkie. Um, so the Kathleen and the Kate are going to do the walkie talkie distance of Kathleen. Looks like she's Viking. Four miles per hour. And then Kate is hiking five miles an hour and they leave simultaneously. And the walkie talkies have a 20 mile radius. So we have four miles an hour, plus five miles an hour. Makes 20. That's a nine miles an hour. Yeah, to combine speed and nine, divide by nine goes in there two times with the remainder, too. And that's how long weakened walk. So it looks like we're gonna have, ah, 2.2 hours. That's how long they can talk.

You know this problem? We're told that we have one convoy that heads north at 50 miles an hour. So after T hours, they've gone 50 t miles. We got another convoy that had south at 40 miles an hour. So after T hours, they have gone 40 t miles. And so the total distance they are a part is 90 t. Now we want to know when there are 100 35 miles apart. So we set this equal to 135 then divided by 90. We get t is 1.5 means you'll take him an hour and 1/2 before they are 135 miles apart. They left it to so an hour and 1/2 after two would put it at 3 30


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