Concept explainers
A satellite in Earth orbit is above Earth's
(a) atmosphere.
(b) gravitational field.
(c) Both of these.
(d) Neither of these.
To determine:The correct option for the statement "A satellite in Earth orbit is above Earth's".
Answer:
The correct option for the statement "A satellite in Earth orbit is above Earth's" is option (c).
Explanation:
Satellites are kept above the atmosphere because they are locked into a speed that is fast enough to break downward pull of gravity.
A satellite has the ability that it can maintain its orbit by balancing the two factor-velocity and gravitational pull. A satellite moving closer to Earth requires more velocity to resist it from pulling it down by stronger gravitational pull.
Satellite placed in Earth orbit is above the atmosphere and gravitational field, because of this, the only satellite can move continuously in its orbit.
Conclusion:
Therefore, the correct option for the statement "A satellite in Earth orbit is above Earth's" is option (c).
Chapter 7 Solutions
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