A space satellite weighs 100,000 newtons on Earth. When orbiting at a height of 6000 km [one Earth-radius] above Earth, its weight is
A) zero.
B) 25,000 newtons.
C) 50,000 newtons.
D) 400,000 newtons.
E) 100,000 newtons.
B
Physics & Space Science
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A) atmosphere. B) oceans. C) mantle. D) all of the above E) none of the above
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As a spaceship approaches the event horizon of a black hole, its radio transmissions would
A) be sucked into the black hole. B) shifted to infrared or even visible light. C) shifted to longer wavelength. D) increase in amplitude. E) be unchanged.
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In space, a 4.0 kg metal ball moving 30. m/s has a head-on collision with a stationary 1.0 kg second ball. After the elastic collision, what are the velocities of the balls?
What will be an ideal response?
Physics & Space Science
Briefly describe how a star forms
What will be an ideal response?
Physics & Space Science