A meter stick moves past you at great speed. Its motion relative to you is parallel to its long axis. If you measure the length of the moving meter stick to be 1.00 ft (1 ft = 0.3048 m)—for example, by comparing it to a 1-foot ruler that is at rest relative to you—at what speed is the meter stick moving relative to you?
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A meter stick moves past you at great speed. Its motion
relative to you is parallel to its long axis. If you measure the length
of the moving meter stick to be 1.00 ft (1 ft = 0.3048 m)—for
example, by comparing it to a 1-foot ruler that is at rest relative to
you—at what speed is the meter stick moving relative to you?
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- The spaceship Lilac, based on the Purple Planet, is779 m long when measured at rest. When the Lilac passes Earth, observers there measure its length to be 724 m. At what speed v is the Lilac moving with respect to Earth? Express your answer as a multiple of the speed of light ?.A spaceship departs from a space station and achieves a constant speed of 0.80cwith respect to thes tation, moving directly away from it. The spaceship fires a torpedo forward (in the same direction). The torpedo’s speed with respect to the spaceship is 0.40c. How fast is the torpedo moving with respect to the station?An astronaut floating in the International Space Station moves at 0.40 m/s to the right. After 5.0sec have passed they are now moving at 1.30 m/s to the left. What was their acceleration duringthis time, stating both the magnitude and direction?
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- 11. . A meterstick moves past you at great speed. Its motion rela- tive to you is parallel to its long axis. If you measure the length of the moving meterstick to be 1.00 ft (1 ft = 0.3048 m)-for example, by comparing it with a 1-foot ruler that is at rest rel- ative to you, at what speed is the meterstick moving relative to you?An astronomer on Earth observes red light at 680 nm from a distant galaxy. The astronomy knows that the red light that was emitted from the galaxy source was 656 nm. The speed of light is 3E[8] m/s. Pretend that the Earth is stationary. What is the velocity of the galaxy as measured from Earth and is it approaching or receding?In frame o an object moves in the x-direction with velocity u = 0.82c. Find the magnitude of the x-component of the velocity in frame o' which moves at velocity v =-.75c in the x-direction relative to frame o. Give your answer in units of c (e.g. 0.703 if the answer is 0.703c). Round your answer to 3 decimal places. Add your answer
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