Textbook Question(II) A spaceship moving toward Earth at 0.65c transmits radio signals at 95.0 MHz. At what frequency should Earth receivers be tuned?40views
Textbook Question(II) A certain galaxy has a Doppler shift given by ƒ₀ - ƒ = 0.1015 ƒ₀ . Estimate how fast it is moving away from us.31views