physics

Forum discussion tagged with physics.
  1. imakevideogames

    Question Energy of a Low Earth Orbit collision - is this calculation correct?

    Hello, could someone kindly double check my math? Alternatively: is there a better place to post the request? My calculation: 50 gram mass (0.05 kg) Low Earth Orbit (~8 km/sec) Head on collision (relative velocity 16 km/sec) Kinetic Energy = 1/2 * mass * velocity_squared Kinetic energy...
  2. Trithinium

    186,000

    Is it true that a craft traveling at the speed of light can no longer see light or dark from outside?