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If you were moving at the speed of light how long would it take to get to proxima centauri from the sun?
About 4 light years.==========================Sorry. "Light year" is an answer to "how far", not "how long".Alpha Centauri is about 4 light years away from our solar system and everything in it,which means that it takes light, radio, and TV from us about 4 years to get there.
Does a satellite travel at its greatest speed when it is closest to or farthest from the earth?
A satellite travels at its greatest speed when it is closest to the Earth (perigee) due to the stronger gravitational pull. When a satellite is at its farthest point from Earth (apogee), its speed is slower.
The moon blocks radio signals sent from earth?
The moon does not block radio signals sent from Earth, but it can cause disruptions in the signals due to its influence on the Earth's ionosphere. Radio waves can still reach the moon and be reflected back to Earth. NASA and other organizations have successfully sent signals to spacecraft on the moon and beyond.
How do you communicate with others on the moon and earth?
Radio. If you can't talk to them directly by hearing their voices, then it is transmitted by radio.
How long ago has Earth been broadcasting radio signals into outer space?
Earth has been broadcasting radio signals into outer space since the late 1800's.
The nearest star beyond the sun is Alpha Centauri which is 4.21016 meters away If you were to receive a radio message from this star today how long ago would it have been seen?
Actually the nearest star (except for the sun) is Proxima Centauri is next at 4.3 light-years from the Earth. It would take 3.4 years at one light-year/year for radio waves to reach Earth from there. This is because the radio waves are travelling in a vacuum and all electromagnetic wave in a vacuum travel at "C" AKA the speed of light.
What does A stand for in radio code?
Alpha
How can you hear radio transmission in hilly areas?
radio transmission can be heard in hilly areas because of diffraction
What type of ionizing radiation causes radio dermatitis?
alpha
What is meant by ground wave propagation?
Ground wave propagation refers to the transmission of radio waves along the surface of the Earth. This type of propagation is commonly utilized for medium and long-distance communication, particularly in the AM radio band. Ground wave signals can follow the curvature of the Earth, allowing for extended coverage compared to line-of-sight transmission.
What material blocks radio waves and prevents their transmission?
Metal is the material that blocks radio waves and prevents their transmission.
If you were moving at the speed of light how long would it take to get to proxima centauri from the sun?
About 4 light years.==========================Sorry. "Light year" is an answer to "how far", not "how long".Alpha Centauri is about 4 light years away from our solar system and everything in it,which means that it takes light, radio, and TV from us about 4 years to get there.
What is the international radio code word for the letter A?
I think it's Alpha, isn't it?
Are 21 cm radio waves forbidden from transmission on Earth?
By international agreement, nobody on earth legally transmits anything on any wavelength unless he and his equipment are expressly authorized (licensed or otherwise permitted) to do the transmitting, and the transmission is confined to a wavelength (frequency) where that type of transmission and output power are specifically authorized. The frequency band (wavelengths) between 1420 and 1427 MHz (21.000 to 21.112 cm) is legally reserved for radio astronomy and space research.
What does a wireless network use as its transmission media?
radio waves or radio frequency
What level of atmosphere bounces off radio waves off of the earth?
Radio waves are in all parts of the atmosphere. Some, but not all, radio waves are reflected from the ionosphere, permitting transmission over greater distances.
Which layer in the atmosphere can reflect radio waves?
The layer of the atmosphere that can reflect radio waves is the ionosphere. Located approximately 30 miles to 600 miles above the Earth's surface, the ionosphere contains charged particles that can reflect certain frequencies of radio waves back to Earth, allowing for long-distance radio communication. This property makes it essential for various forms of radio transmission, especially in the HF (high frequency) band.
