中国大学MOOC: Two spaceships move with same speed 0.80c relative to the Earth, but in opposite directions. What is the speed of one ship relative to the other? (c is the speed of light in vacuum)
举一反三
- Two spaceships move with same speed 0.80c relative to the Earth, but in opposite directions. What is the speed of one ship relative to the other? (c is the speed of light in vacuum) A: 0.80c B: 0.976c C: 0.994c D: 1.60c
- s ________：to happen at the same time or to move at the same speed as something
- The two balls move _______ the opposite directions _______ the same stress.
- The speed of light is greater than ______ of sound.
- Which shallow water effect will increase dramatically if you increase your ship’s speed past its critical speed?