from the relation
v = u+u'/1+uu'/c^2
here u = -0.74 c
u' = 0.9c
v = -0.74c+0.9c/1-0.74*0.9 = 0.16c/0.334 = 0.479 c
Spaceships of the future may be powered by ion-propulsion engines in which ions are ejected from...
miro photons Problem #2 Photon propulsion. Star Trek Enterprise impulse propulsion is powered by nuclear fusion. As we have seen, only about 1% of the fusion fuel mass is converted into energy. A more efficient engine for sub-luminal travel is under development, which uses matter-antimatter annihilation with 100% mass-to-energy conversion. The diagram below illustrates the principle of the new photon propulsion engine. Assume that the mirror system is perfect and sends all photons in one direction. annihilation a) What is...