1) Suppose an astronaut travels so fast that γ = 35. She tra…
1) Suppose an astronaut travels so fast that γ = 35. She travels from the Earth to a star 4.8 light years (ly) away as measured by an Earth-bound observer. How far apart are the Earth and the star as measured by the astronaut? (5 points) 2) How much energy is emitted during the transition of an electron that makes the fourth line of Balmer series? (5 points) 3) What is the wavelength of the 5th line in the Lyman series? (5 points) 4) Suppose a spaceship heading straight towards the Earth at 0.850 c can shoot a canister at 0.550 c relative to the ship. What is the velocity of the canister relative to the Earth, if it is shot directly at the Earth? (5 points)
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