A spaceship, moving away from Earth at a speed of 0.980c, reports back by transmitting at a frequency (measured in the spaceship frame) of 130 MHz. To what frequency must Earth receivers be tuned to receive the report? Number Units
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- A star is 16.6 light-years from Earth. Part A How long would it take a spacecraft traveling 0.950c to reach that star as measured by observer on Earth? tEarth 17.5 years Submit ✓ Part B Correct How long would it take a spacecraft traveling 0.950c to reach that star as measured by observer on the spacecraft? t = 5.46 years Submit ✓ Previous Answers Part C Correct Submit What is the distance traveled according to observers on the spacecraft? 15.18 light-years Previous Answers Part D Correct Previous Answers v= 5.18 What will the spacecraft occupants compute their speed to be from the results of part B and part C? IT| ΑΣΦ Submit Previous Answers Request Answer ? X Incorrect; Try Again; 3 attempts remaining .CA 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 UnitsGeorge 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
- 18 Part 2 of 2 + eBook Hint Print References A spaceship is moving away from Earth with a constant velocity of 0.840c with respect to Earth. The spaceship and an Earth station synchronize their clocks, setting both to zero, at an instant when the ship is near Earth. By prearrangement, when the clock on Earth reaches a reading of 1.00×104 S, the Earth station sends out a light signal to the spaceship. According to an Earth observer, what is the reading of the clock on Earth when the signal is received?An electron is moving with a kinetic energy of 0.923 MeV.What is its speed?