A spaceship has been gone from the Earth for a total time of 5 years ship time.The people on the Earth have measured the time for the ship to be a way to be 25years. How fast was the ship traveling? Which one the following is the answer?? A. 0.979C B. 0.96C C. Other answer (pls write the solution if ever) Relativistic Energy and Momentum

8. Adam and Avani are twins. On their 19th birthday, Avani leaves on a spaceship and travels at 0.80 c. Avani returns to Earth on the day that Adam is celebrating his 35th birthday. How old does Avani believe she is?

Why do we not observe relativistic effects in our daily lives? O Because motion is relative. O Because you can't go back in time. Because the math is too hard. O We do observe relativistic effects in our daily lives. This is why time sometimes appears to pass more quickly than usual. O Because relativity only effects particles such as electrons & protons. O Because the speeds we move at are much less than the speed of light.

A muon is created at an accelerator experiment. It moves with a spe0.95c. The muon mass is1.90×10−28 kg. What is its momentum? A.1.20×10−19 kg m/s B.1.73×10−19 kg m/s C.2.88×10−19 kg m/s D.3.59×10−19 kg m/s       ( Please type answer note write by hend )

multiple choice question As the velocity of an inertial frame of reference increases with respect to a stationary observer, Einstein's theory of special relativity predicts that the length of an object, measured in the dimension parallel to the motion of the reference frame, will A decrease. B. remain unchanged. Jump to 1 2 3 4 5 6 7 8 9 10 increase. D. increase at first but start to decrease when the speed of the reference frame equals half the speed of light. E. decrease at first but start to increase when the speed of the reference frame equals half the speed of light.

2. Please help me answer these questions, well explained. A spacecraft travelling at a speed of 0.95 c goesfrom the planet Jupiter to the planet Pluto. A. If an observer on planet Jupiter mesures thelength of the vessel as 55 m, how long is it when it is stationary? B. A monkey inside the ship has a pulse of 116beats/min when he is on the earth. What is his pulse inside the ship?

What is the total energy of an electron moving with a speed of 0.950 c? a. 2.6 x 10-13 J b. 1.1 × 10-13J c. 1.2 x 10-14 J d. 8.2 × 10-14 J

6. An unknown ship is traveling at 0.8 c to the left as measured by someone on the Earth. Earth sends space ship traveling to the right at 0.9 c to intercept the ship. Eanh a) What is the velocity of the alien space ship as measured by the ship from Earth? b) If the Earth ship fired a laser at the alien ship, what would be the velocity of the laser according to someone on the alien ship?

these are all incorrect