What do we mean by time dilation in relativity?
A) It is the idea that time really runs slower in reference frames moving relative to you.
B) It is the idea that time seems to run slower in reference frames moving relative to you, but time really is the same for everyone.
C) It is the idea that relativity makes time dilate, or expand, for people who study it.
D) It is a hallucinogenic effect experienced by people who take too much of something.
A) It is the idea that time really runs slower in reference frames moving relative to you.
You might also like to view...
Which of the following is NOT a vector?
A. Acceleration B. Velocity C. Mass D. Weight E. All of these choices are correct
An electron, moving south, enters a magnetic field. Because of this field, the electron curves upward. We may conclude that the magnetic field must have a component
A) downward. B) towards the east. C) towards the north. D) upward. E) towards the west.
How many moles of He would 3.01 × 10^23 helium atoms be?
a. 2.00 b. 4.00 c. 0.50 d. 1.00 e. None of these
A design requires a material that must operate up to temperature of 200°C (392°F), have a high resistance to deformation, a high strength, a high resistance to fracture, and a low density. Highest performance is the most important design criteria. Which of the following materials is most likely to best satisfy the design requirements?
(a) Alumina ceramic (b) Low-carbon steel (c) Polyethylene (d) Graphite-reinforced epoxy