What is the speed of light pulses coming out of the mast of the spaceship by the observer shown in the sketch? who Speed of light pulses Speed of the ship measured by measured from the ship is c observer is 0.8c An observer is at rest on the ground 1.8c 0.2c 0.1c None in the list
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A: Special Theory of relativity.
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- A spaceship, moving away from Earth at a speed of 0.929c, reports back by transmitting at a frequency (measured in the spaceship frame) of 129 MHz. To what frequency must Earth receivers be tuned to receive the report? Number Units4. Bob is moving away from Alice with speed of 0.5c. Carlos is moving away from Alice and to Bob with speed of 0.8c. What is the speed of Carlos as measured by perpendicular Bob?George is in a spaceship, speeding away from planet Earth at , where is the speed of light in a vacuum. Anna is on George's ground crew, and she sends out a communication signal to George. Since Anna's communication signal is a radio wave, it is electromagnetic and travels at a speed of relative to Anna. From George's perspective, Anna's signal is approaching him at a speed of? c 0.5c 2c 0
- As measured by the crew, a spaceship takes 8.1 years to fly from Earth to a distant star. If the ship traveled at 0.95c, which of the following is the distance between Earth and the star as measured by observers on Earth? 22.3 light years O 24.6 light years O 29.2 light years O 20.9 light yearsA particle travels at 0.60c. Determine the ratio of its kinetic energy to its rest energy.A) 0.25B) 0.50C) 0.60D) 0.64E) 0.80A spaceship carrying a light clock moves at a speed of 0.6c relative to an observer on Earth. If the clock on the ship advances by 1.00 s as measured by the space travelers aboard the ship, how long did that advance take as measured by the observer on Earth? O 1.15 s O 1.25 s O 3.6 s O 2.6 s O 0.96 s