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What are short radio waves used for?
Shortwave radio is used for broadcasting of voice and music to shortwave listeners, and long-distance communication to ships and aircraft, or to remote areas out of reach of wired communication or other radio services. Additionally, it is used for two-way international communication by amateur radio enthusiasts for hobby, educational and emergency purposes.
What is an Americans average commute distance to work each day?
Average one-way commute time is 26 minutes (over an average distance of 16 miles)
What is 3 advantages about the radio?
Advantage #1 Radio is a great way to reach many listeners at one time Advantage #2 Radio for the most part is free to listen to Advantage #3 Radio is always available 24/7
How do you calculate the average speed of a swimmer?
The same way you calculate the average speed of any object. You divide distance by time.
Fireside chats?
Roosevelt's radio broadcasts to the nation. His way of reassuring the American public
How do very long radio waves reach stations beyond the curvature of the Earth?
Radio waves, like all forms of electro magnetic radiation are affected by gravity, so the Earth's mass helps to bend the radio waves to an extent. Beyond that, radio waves can be reflected naturally by atmospheric conditions, but generally, when a radio signal needs to be transmitted a significant distance, it is done by a series of radio towers in relay.AnswerThe condition is called 'skip'. The waves bounce off the ionisphere and back to earth way past the curvature.
How long would it take to contact home from Saturn?
Here is a rough calculation, using rough numbers, to give you a rough idea:Earth's average distance from the sun: 93 million milesSaturn's average distance from the sun: 890.8 million milesMinimum distance between earth and Saturn: (890.8 - 93) = 797.8 million milesMaximum distance between earth and Saturn: (890.8 + 93) = 983.8 million milesSpeed of light/radio = 186,282 miles per second.Time for radio to travel minimum distance = (797.8 / 186,282) = 4,282.8 seconds = 1hour11.4minutesTime for radio to travel maximum distance = (983.8 / 186,282) = 5,281.2 seconds = 1hour28minutesNote: These are the one-way times, for a radio signal to cover the distance from Saturn to Earth.If you want a response, then double the times, plus add some time for the folks on earth to thinkabout their response and then send it.
What are the best tools for performing radio frequency identification?
The tools for performing Radio Frequency Identification (RFID) would be a two-way radio transmitter-receiver and a magnetic field that powers and reads RFID's at a short distance.
Why is it harder to receive FM radio signals in some places?
waves spread out as distance gets farther. So at certain places there is no radio. Also if big concrete buildings or bridges in way, radio waves cant get through it because FM signals go in a straight lines while on the other hand am signals scatter so more people can use it Radio broadcasts bounce off of the ionized layer of the atmosphere, the ionosphere, in order to reach more distant receivers, but the state of the ionosphere can vary, and it does not always reflect the way we want it to.
What is the distance between katra phagwara?
The road distance between katra to Phagwara is 298 km.The convenient and fastest way to reach from Phagwara to Katra is travel by bus.
How long would it take radio signals to travel from Earth to Venus and back if Venus were at its farthest distance from Earth?
Practical Answer If the distance between Earth and Venus is to be maximum, then the two planets would have to be on opposite sides of the Sun. There would be no way to send radio waves to Venus in this situation as the waves cannot travel through the Sun. So, in reality, this question has no answer.Theoretical Answer For the sake of curiosity, lets assume the waves travel through the Sun in a straight line.: Earth's average distance from the sun = 93,000,000 miles Venus' average distance from the sun = 67,200,000 miles Max separation (opposite directions from the sun) = 160,200,000 miles Speed of radio (light) = 186,282 mi/sec Time for a radio or radar return = 2 x (160,200,000 / 186,282) = 1,720 seconds = 28-2/3 minutes(rounded)
How do you compute the average speed of an athlete?
To compute the average speed of an athlete, you need to divide the total distance they covered by the total time taken to cover that distance. The formula is: average speed = total distance / total time.
