The special theory of relativity predicts that there is an upper limit to the speed of an object. It therefore follows that there is also an upper limit on which of the following properties of the object?
(There could be more than one correct choice.)
A) The kinetic energy of the object.
B) The total energy of the object.
C) The linear momentum of the object.
D) None of the above.
D
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Why are optical fibers important for communication?
a. They can carry thousands of times the information that wires can. b. Light goes faster than electricity. c. They carry digital information. Wires can't carry digital information. d. all of the above
Gravitational lensing
a. occurs when light passes near a massive object and is deflected by the object's gravitational field. b. can be used to determine the luminosity of a galaxy. c. occurs when the mass of a galaxy is greater than expected from the luminosity of the galaxy. d. occurs when the mass of a galaxy is less than expected from the luminosity of the galaxy. e. can be used to determine the recessional velocity of a galaxy.
Consider the following statement: "Rocky asteroids are found primarily in the asteroid belt and Kuiper belt, while icy comets are found primarily in the Oort cloud." What's wrong with this statement?
A) The Kuiper belt contains icy comets, not rocky asteroids. B) Asteroids are not really made of rock. C) Comets are not really icy. D) The Oort cloud has nothing to do with comets. E) The statement is accurate as written.
What do we mean by "ice geology"? Give an example illustrating why it is important in the outer solar system.
What will be an ideal response?