Consider an Earth satellite in an elliptical orbit. Its centripetal acceleration is
A) zero.
B) > g at the satellite.
C) < g at the satellite.
D) constant.
E) g at the satellite.
E
Physics & Space Science
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The theory of special relativity
A) is based on a complex mathematical analysis. B) does not agree with electromagnetic theory. C) does not agree with Newtonian mechanics. D) has not been verified by experiment.
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Briefly explain T Tauri stars
Indicate whether the statement is true or false
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A star can remain in the giant-star stage for about 90 percent of its total lifetime before it dies
Indicate whether the statement is true or false
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What must be the diameter of a cylindrical 120-m long metal wire if its resistance is to be 6.0 ?? The resistivity of this metal is 1.68 × 10-8 ? ? m
A) 0.065 mm B) 0.65 mm C) 0.65 cm D) 0.325 mm E) 0.0325 mm
Physics & Space Science