A communications satellite is to be placed in a geo- stationary 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 latitute 45°N, what is the shortest time taken for its reflection to reach the Earth?

A communications satellite is to be placed in a geo- stationary 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 latitute 45°N, what is the shortest time taken for its reflection to reach the Earth?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.

Question

A communications satellite is to be placed in a geo-
stationary 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 latitute 45°N, what is the shortest
time taken for its reflection to reach the Earth?

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