A communications satellite is to be placed in a geostationary orbit. (a) What must the period...
A communications satellite is to be placed in a geostationary orbit. (a) What must the period and orientation of the orbit be? (b) What is the radius of the orbit? (c) If a radio signal is sent to the satellite from a transmitter at latitude 45N, what is the shortest time taken for its re ection to reach the Earth? problem 6 from the book
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A communications satellite is to be placed in a geostationary
orbit. (a) What must the period...
A geostationary orbit is one in which a satellite orbits the Earth (in a circular orbit)...
A geostationary orbit is one in which a satellite orbits the Earth (in a circular orbit) in the same time as it takes the Earth to make one full rotation with respect to the stars. a) Given the mass of the Earth, calculate the distance of a geostationary satellite from the center of the Earth. b) If you were standing on the equator with the geostationary satellite at your zenith, how long would it take to receive a radio signal?...
For communications purposes, satellites are typically placed in a circular geosynchronous orbit. If the orbit is...
For communications purposes, satellites are typically placed in a circular geosynchronous orbit. If the orbit is in the equatorial plane of the Earth, it is called geostationary. A satellite’s orbital speed in a geostationary orbit is set to match the angular velocity Ωe of the rotating Earth (with mass M), so that as seen from the Earth the satellite is stationary above a fixed point on the Equator. For a satellite of mass m in a geostationary circular orbit then...
A geostationary satellite is a satellite located in an orbit such that it remains above the...
A geostationary satellite is a satellite located in an orbit such that it remains above the same point on the Earth’s surface. [Assume it takes 23 hours 56 minutes 4.09 seconds for the Earth to spin around once.] a) What is the angular velocity of such a satellite? b) What is the altitude of such a satellite? c) Calculate the period of a satellite orbiting 200km above the Earth.
A geostationary communications satellite orbits the earth directly above the equator at an altitude of 34800...
A geostationary communications satellite orbits the earth directly above the equator at an altitude of 34800 km .Calculate the time it would take a cell phone signal to travel from a point on the equator to the satellite and back.Would this delay be noticeable in a conversation?
Many communication satellites are placed in a circular orbit around the Earth at a radius where...
Many communication satellites are placed in a circular orbit around the Earth at a radius where the period (the time to go around the Earth once) is 24 hours. If the satellite is above some point on the equator, it stays above that point as the Earth rotates, so that as viewed from the rotating Earth the satellite appears to be motionless. That is why you see dish antennas pointing at a "fixed" point in space. (a) Calculate the radius...
7. An antenna on the Earth's surface sends a signal as a plane-wave to a satellite orbiting the Earth at the geostationary orbit. Assume the antenna on the satellite is A m2 across. Assuming (...
7. An antenna on the Earth's surface sends a signal as a plane-wave to a satellite orbiting the Earth at the geostationary orbit. Assume the antenna on the satellite is A m2 across. Assuming (though incorrect) the Earth's atmosphere and outer space both to be a lossless media, what is the expression of the ratio of the power transmitted versus power received in dB? Assuming the Earth's atmosphere and outer space together present an average attenuation, what does the ratio...
A satellite in geostationary orbit appears to remain stationary in the sky as seen from any...
A satellite in geostationary orbit appears to remain stationary in the sky as seen from any particular location on Earth. a. At what altitude would such a satellite need to be above the Earth? Use 4pi^2r/T^2 where T is the period. Use the 2nd equation and mathematial insight 4.5 on p. 131 ro find r for T=1 day (The Cosmic Perspective)
Incorrect Question 1 0/0.3 pts Communications satellites are usually placed in geosynchronous orbits, a distance of...
Incorrect Question 1 0/0.3 pts Communications satellites are usually placed in geosynchronous orbits, a distance of 4.43 x 107 m from the center of Earth. What is the time lag for a signal sent from one point on Earth's surface to another via such a satellite? (The radius of Earth RE 6.370 x 10 m.) 0.13s 0.25 s 0.51s 0.29 s 0.15 s Section: 31-1 Topic: The Speed of Light Type: Numerical
A 1740-kg communications satellite is released from a space shuttle to initially orbit the Earth at...
A 1740-kg communications satellite is released from a space shuttle to initially orbit the Earth at a radius of 9. 106 m. After being deployed, the satellite's rockets are fired to put it into a higher altitude orbit of radius 4. 107 m. What is the minimum mechanical energy supplied by the rockets to effect this change in orbit?
A satellite is placed in an elliptic equatorial orbit and orbits Earth in the opposite direction ...
A satellite is placed in an elliptic equatorial orbit and orbits Earth in the opposite direction to Earth’s rotation. The altitude of perigee point is 2,000 km while the altitude of the apogee point is 30,000 km. Given that radius of Earth is 6378 km, find: The semi-major and semi-minor axis of the orbit. In one orbit, the satellite had its perigee over longitude 30° E, over which longitude will it have its next apogee? If the satellite transmits a...
7. An antenna on the Earth's surface sends a signal as a plane-wave to a satellite orbiting the Earth at the geostationary orbit. Assume the antenna on the satellite is A m2 across. Assuming (though incorrect) the Earth's atmosphere and outer space both to be a lossless media, what is the expression of the ratio of the power transmitted versus power received in dB? Assuming the Earth's atmosphere and outer space together present an average attenuation, what does the ratio...
Incorrect Question 1 0/0.3 pts Communications satellites are usually placed in geosynchronous orbits, a distance of 4.43 x 107 m from the center of Earth. What is the time lag for a signal sent from one point on Earth's surface to another via such a satellite? (The radius of Earth RE 6.370 x 10 m.) 0.13s 0.25 s 0.51s 0.29 s 0.15 s Section: 31-1 Topic: The Speed of Light Type: Numerical
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