The average distance from Earth to the Sun is

a. 1 ly.
b. 1 million km.
c. 1 million miles.
d. 1 billion km.
e. 150 million km.


e

Physics & Space Science

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Despite its thick cloud cover, astronomers can observe the surface of Venus with

A. ultraviolet light. B. visible light. C. infrared light. D. radar.

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An uncharged pith ball is suspended by a nylon fiber. When a positively-charged rubber rod is brought nearby, the pith ball

A) moves toward the rod. B) is unaffected. C) moves away from the rod. D) none of the above

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Almost all of our atmospheric gases lie in the

A) ozone layer. B) mesosphere. C) ionosphere. D) troposphere. E) stratosphere.

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Would increasing the load factor for air travel reduce per passenger energy use? Explain

What will be an ideal response?

Physics & Space Science