Answer Happy

B = B= = Atobserver yAtmoving , Lobserver L moving 7 C=3.0 x 108 m/sec, V1 - B2 V1 + V2 B| А = UBIC + UCLA , W = 1+ U102 E = hf hc , df = c, KEmax = eV, = hf – 0, X - to = h (1 mec cose), 1 EO ph m , c = 3.0 x 108 m/sec , me = 9.11 x 10-31 kg, Eph + KE, KE zmev?, 1 nm = 1 x 10 h = 4.14 x 10-15 eV · sec , h = 6.63 x 10 2 -34 J · sec 1 eV = 1.60 x 107 -19 J, 1 keV - 1000 eV 7
Problem 2: A spaceship is travelling towards the Earth at a speed of 0.4 c (relative to the Earth). The spaceship fires a rocket towards the Earth. The speed of the rocket, relative to the spaceship, is 0.5 c. What is the speed of the rocket, relative to the Earth?