A spaceship carrying a light clock moves at a speed of 0.96 c relative to an observer on Earth. Relative to a frame of reference that is fixed with respect to the earth, how long does it take the clock to advance 1 s?
A) 5.83 s
B) 3.57 s
C) 0.96 s
D) 1.22 s
E) 2.59 s
B
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One of the most important mechanical properties of metals is their capacity for ______________deformation.
Fill in the blank(s) with the appropriate word(s).
The rings of Neptune contain lots of dust as indicated by forward-scattering light
a. True b. False Indicate whether the statement is true or false
Geological evidence points to a history of extended ice ages in Earth's history. How did Earth recover from this snowball phase?
A) The increased ice coverage on Earth's surface absorbed more sunlight than water and rocks, thus gradually heating Earth until the ice melted. B) Life vanished, leading to an increase in CO2, and increased global warming, eventually melting the ice. C) Volcanoes continued to inject CO2 into Earth's atmosphere, increasing the greenhouse effect to the point where ice melted. D) Plate tectonics gradually subducted all the ice below Earth's surface. E) As the Sun aged, it grew brighter and increased Earth's temperature, melting the ice.
When light enters glass from air, which of these properties of the light change?
a. frequency b. wavelength c. speed d. all of the above