Lydia proposes to send an interstellar probe off in stages. The first stage, traveling radially outward at 0.500 c relative to Earth, will send off a second stage traveling in the same direction as the first stage at a speed of 0.500 c relative to the first stage. Finally, the second stage will send off a third stage traveling in the same direction at 0.500 c relative to the second stage. Relative to Earth, the speed of the third stage will have a magnitude of
a. 0.500 c. b. 0.800 c. c. 0.929 c. d. 0.972 c. e. 1.500 c.
Question 2
Two spaceships traveling in opposite directions along parallel lines measure their own and the other spaceship's length while passing one another. The crew on spaceship A says that their ship is 1 000 m long and that ship B is 800 m long. The crew on ship B says that their ship is 1 000 m long and that ship A is 800 m long. At what speed does each crew say that the other ship is traveling relative to their own ship?
a. 0.36 c
b. 0.60 c
c. 0.64 c
d. 0.80 c
e. 1.25 c
The nucleus of Halley's Comet, taken by the Giotto probe in 1986
The five stages of viral infection.
The three stages of respiration
Human civilization developed during the most recent interglacial stage
Polyps, or abnormal growths, on the lining of the large intestine may indicate early stages of colon
Stages of Oocyte Development