Suppose a space vehicle with a rest mass of 150 000 kg travels past the International Space Station at a constant speed of 2.6 × 108 m/s with respect to the I.S.S. When an observer on the I.S.S. measures the moving vehicle, her measurement of the space vehicle length is 25.0 m. a. Determine the relativistic mass of the space vehicle. b. Determine the length of the space vehicle as measured by an astronaut on the space vehicle.

A neutron lives 900 s when at rest relative to an observer.  How fast (as a fraction of the speed of light, c) is the neutron moving relative to an observer who measures its lifespan to be 2065 s? A. 0.938 c B. 0.965 c C. 0.982 c D. 0.910 c

14. An astronaut is flying in a spaceship with a speed of 0.8 c with respect to Earth. The astronaut observes an event on Earth and determines that the time interval for the event to be completed is 33 hours. a) If the astronaut had a speed of 0.93 c with respect to Earth, what would she observe the time interval to be for that same event? b) Would the astronaut measure the proper time interval or the dilated time interval? Justify your response.

A car roles off the assembly line with a mass of 2000kg.  A very special rocket booster, with mass 500kg, is then attached to the vehicle.  This allows the car to reach a speed of 0.6c.  To an observer standing outside the auto plant as the car goes by at maximum speed, what mass will the vehicle appear to have??   a. 3953kg b. 900kg c. 3125kg d. 1601kg   Which of the following is not proof of the theory of relativity?   a. Gravitational lensing around stars. b. Muons reaching the earth’s surface c. Twin Paradox d. Flight tests around the world using atomic clocks

A tau particle has a rest mass of 3.18x10-"kg. Suppose a tau particle is traveling at 1.25 x10 " in the lab's inertial frame. a. What is y, in the lab's frame? b. What is the magnitude of the momentum of the tau particle in the lab's frame?

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

An elementary particle has an average lifetime of 2.60*10^-8s. In a high-energy particle accelerator, these particles reach a very high speed and are found to have a lifetime of 2.60*10^-7s. What speed are the particles moving at in this experiment? a) 10.0 c   b) .999c   c) .995c   d) .955c   e) .880c   f) .5c

A particle is moving at a speed of 0.925c and travels from one end of a 50 m long Physics lab to the other. How long is the lab if measured when moving with the particle?   A.    132 m   B.    19 m   C.    16 m   D.    50 m   E.    149 m

If a m = 81.1 kg person were traveling at v = 0.980c, where c is the speed of light, what would be the ratio of the person's relativistic kinetic energy to the person's classical kinetic energy? kinetic energy ratio: What is the ratio of the person's relativistic momentum to the person's classical momentum? momentum ratio:

1. Two cars are traveling at constant speed along a road in the same direction. Car A moves at 60 km/h and car B moves at 40 km/h, each measured relative to an observer on the ground. What is the speed of car A relative to car B? 2. A supersonic plane moves away from you, and in the +x direction, at a speed of 1000 m/s relative to you. A second plane, traveling in the same direction and ahead of the first plane, moves away from you, and away from the first plane, at a speed of 500 m/s relative to the first plane. How fast is the second plane moving relative to you? 3. Astronauts in a spaceship traveling at v = 0.6c relative to Earth sign off from space control, saying that they are going to nap for 1.00 h and then call back. How long does their nap last as measured on Earth? 4. A stick that has a proper length of 1 m moves in a direction parallel to its length with speed v relative to you. The length of the stick as measured by you is 0.914 m. What is the speed v? T 5. Muons are…