A navigational beacon in deep space broadcasts at a radio frequency of 44 MHz. A spaceship approaches the beacon with a relative velocity of 0.46c. What is the frequency in Megahertz of the beacon radio signal that is detected on the ship?

If a m = 87.5 kg person were traveling at v = 0.992c, where e 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:

The nearest star to Earth is Proxima Centauri, which is 4.3 light years away. The spacecraft Potemkin is sent to this star at a constant velocity of 0.73c, and the craft carries a light beacon that flashes once a day to signal the earth that all is well. While traveling to the star the Potemkin passes a similar ship returning from the star at the same speed. How long does the trip take according to the space travelers inside the Potemkin? (b) (a) How long does the trip take according to Earth observers? (c) According to the space travelers inside the Potemkin, what is the distance to Proxima Centauri? (d) What is the speed of the returning craft as seen from the Potemkin What is the rate at which flashes are seen on Earth from the Potemkin? (e) (f) What is the rate of flashes sent by the returning craft as seen by the Earth observers?

What is the kinetic energy of an electron if its speed is 0.992c?

How far from the earth would you be able to travel in a lifetime of 88 years if you were able to travel at a constant speed of 0.67c?

Someone in Earth's rest frame says that a spaceship's trip between two planets took 10.0 years, while an astronaut on the space ship says that the trip took 6.27 years. Find the speed of the spaceship (as measured by someone in Earth's rest frame) in terms of the speed of light. 0.959c 0.687c 0.489c 0.684c 0.779c

Suppose a space probe moves away from the Earth at a speed 0.350c . It sends a radio wave message back to the Earth at a frequency of 1.50 GHz. At what frequency is the message received on the Earth?

Harry is on board a spaceship approaching the earth at speed 0.87c. Maria is in a laboratory on the earth. Determine the gamma factor relating the frames of reference of the two observers. 0.50 2.0 6.4 0.87 1.6

The half-life of a muon at rest is 1.5 micro secs. Muons that have been accelerated to a very high speed and are then held in a circular storage ring have a half-life of 6.2 micro secs. What is the total energy of a muon in the storage ring? The mass of a muon is 207 times the mass of an electron. 0.97c

A spaceship is moving away from Earth at speed 0.20c. A source on the rear of the ship emits light at wavelength 450 nm according to someone on the ship. What (a) wavelength and (b) color (blue, green, yellow, or red) are detected by someone on Earth watching the ship?