A star is observed to move away from us at a speed of 2.8km/s. How far is the star ? Express your answer in light years. And the answer is NOT 1.24
Q: lighthouse sweeps its beam of light around in a circle once every 7.6 s. To an observer in a…
A: Given, Time interval, ∆t=7.6s ∆t'=16s
Q: The special theory of relativity has what effect on measurements done today? (a) None whatsoever,…
A: Given: The effect of measurements on the special theory of relativity.
Q: The kinetic energy of the ejecta from a supernova explosion is about 10^44 joules. Use the formula…
A: We are given the kinetic energy of a mass which is ejected from supernova explosion. We are also…
Q: 10. Sirius is about 9.00 ly from Earth. To reach the star by spaceship in 15.0 y (ship time), how…
A:
Q: A particle maintains a circular orbit around a black hole of mass 10 Solar masses at a distance…
A: Given Data The mass of the black hole is:M=10×1.989×1030=1.989×1031 kg The distance is:…
Q: (a) How much time passes on the astronauts' clocks? | years (b) What is the distance to Alpha…
A: Refer attachment (a) = 1.791 (b) = 1.646
Q: A star is 80 light years from Earth. How fast does a spacecraft have to be for the journey to last…
A: The objective of the question is to find out the speed of a spacecraft that would allow an astronaut…
Q: Assuming a constant velocity of v=0.87c, how long would the trip to Alpha Centauri take as observed…
A:
Q: A light year (LY) is the distance that light travels in one year. 1 LY = 9.46x1015 m. Suppose we…
A:
Q: A spaceship is moving away from Earth at 0.892c when it fires a small rocket in the forward…
A:
Q: Rigel, which is in the constellation of Orion, is 770 ly away. You plan a sight-seeing vacation for…
A: Given d = 770 ly Light year (ly) is definined as distance travelled by light in a year . Speed of…
Q: I don't understand how to do this question.
A:
Q: A galaxy is observed to recede from Earth with an approximate speed of 0.81c. Approximately how…
A:
Q: If astronauts could travel at v = 0.902c, we on Earth would say it takes (4.20/0.902) = 4.66 years…
A: Here we will apply Time dilation formulae
Q: Galaxy B moves away from galaxy A at 0.5010.501 times the speed of light. Galaxy C moves away from…
A:
Q: Galaxies at the furthest reaches of the universe are moving away from us at speeds greater than…
A: About speed of light .
Q: Nighly Sloped Worldline. Make a spacetime diagram on yhich the time axis is marked in seconds and…
A: Consider the known data as below. A slope. θ=30° Velocity of light, c=3×108 ms Let any instance…
Q: In 2030, the Australian Space Agency launches a spaceship to our nearest neighbour Alpha Centauri (4…
A: Given: Distance between Australian space agency and Alph Centauri, d=4 ly Speed of spaces according…
Q: II. You have been hired as a space weather forecaster. At 11:30:00 UT on your first day, November…
A: Distance from earth to sun = 149.6 million km = 149.6 x 106 km
Q: a rocket ship traveling near the speed of light appears to a stationary observer to shorten with…
A: Rocket with a length of L0= 200 meters. Rocket is A traveling at a speed of 99% of the speed of…
Q: 13. Sirius is the brightest star in the sky. It is 9 light years away. If you were to travel there…
A: The distance between the earth and the Sirius is 9 light-years. We know that 1Ly=9.461×1015m The…
Q: A spaceship is moving away from Earth at 0.842c when it fires a small rocket in the forward…
A: Spaceship is moving away from earth at speed u=.842cSmall rocket move forward with speed relative to…
Q: Q 2 Within a certain distance of a black hole, not even light can escape. This distance is called…
A: According to the question the black hole has same mass as the sun Mb = 2.0 x 1030kg since the…
Q: A meter stick moves past you, with its motion relative to you parallel to its long axis. If you…
A:
Q: 19. A body moves 5 meters north and 4 meters south. The offset is: a. 1 meter south at zero degrees…
A:
Q: If astronauts could travel at v = 0.932c, we on Earth would say it takes (4.20/0.932) = 4.51 years…
A:
Q: 10. Sirius is about 9.00 ly from Earth. To reach the star by spaceship in 15.0 y (ship time), how…
A: Distance from Sirius to the Earth is The required time or proper time is Find:The speed of…
Q: Gravitational waves weré first detected in 2015, using the LIGO detectors at Livingston, Louisiana,…
A: Required : The location of the Gravitational wave source.
Q: Ingii is craft is 20.0 m long and that the identically constructed craft you are sitting s 19.0 m…
A: Given:- A friend passes by you in a spacecraft traveling at a high speed. He tells you thathis craft…
Q: Jek Porkins is passing a small but suspicious-looking moon traveling at 0.490c. If the spherical…
A:
Q: Pretend you are on a spaceship that is traveling at 90% the speed of light. If you are going to…
A: Earth is reference frame and the spaceship is the primed reference frame moving a speed of 0.90c.…
Q: Millennium Falcon is approximately
A:
Q: What is the speed of light (c=3.0∗10^8m/s) in kilometers per hour?
A:
Q: If you were traveling away from a planet at 99% the speed of light, and turned on a flash light…
A: A flash light is turned on by observer moving at speed 0.99 c
Q: The Millennium Falcon is approximately 35.2 m long. There are conflicting reports, but the Falcon…
A: Length of Falcon = 35.2 m The Falcon made the kessel run in approximately 12.27 parsecs Velocity of…
Q: rocket ship traveling near the speed of light appears to a stationary observer to shorten with…
A: Given :) Actual length=200 m Required:) apparent length if it is travelling with v=0.99 c
Q: 11. A star is 40.0 light-years from Earth (1 light-year is the distance that light travels in 1…
A: (a) To calculate the distance you would measure when traveling to the star at a high speed, we need…
A star is observed to move away from us at a speed of 2.8km/s.
How far is the star ? Express your answer in light years.
And the answer is NOT 1.24
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- One year (yr) is 365.24 days. One light-year (lyr) is 9.467 × 10^15 m. Convertthe speed of light (3.00 × 10^8 m/s) to lyr/yr.A spacecraft moves at a constant speed between Earth and the center of the Milky Way, 26,000 light years away. According to the ship's passengers, the journey takes 30 years. What is the speed of the ship? Use the formula for gamma γ and express the answer in c.I rewrote the question to get z=(1+z)v/c, plugged in z and got 0.8603. Is this the correct approach?
- The star Epsilon Eridani is 10.4 light-years from Earth. Imagine a spaceship that travels from Earth to Epsilon Eridani at a constant speed of 0.921c. On Earth, we would measure the time it takes for the ship to reach the star to be (10.4ly/0.921c)= 11.2 years. (a) How much time (in years) would it take the ship to travel from the Earth to the star as measured by a passenger aboard the ship? years (b) What is the distance to the star (in light years) as measured by a passenger aboard the ship?30 3 $ 1.. 4 1 23| 1. Preparations are under way for a spacecraft visit to the Alpha Centauri star system, 4.30 lightyears away. Provisions are placed on board to allow for a trip of 8 years. a. What minimum speed must the spacecraft travel relative to earth if the provisions are to last? 000 000 F4 stv % b. What would be the distance between Earth and Alpha Centauri according to the astronauts at this minimum speed? c. How much time would the trip take according to someone on earth at this minimum speed? 5 F5 < CO 6 F6 4 & 7 ILI F7 * II 8 00 5 6 DII F8 ( 9 DD F9 F100 How long does it take (in seconds) for light to travel from the Sun to Saturn if the Sun is roughly 1.5 10^9 km away and the speed of light is 3*10^8 m/s? (Only write the number; your answer is assumed to be calculated in seconds) hp & #3 2$ backs 4 5 7 9. e r y d f h j k
- The star Alpha Centauri is 4.367 light vears from earth. What velocity do you need to travel at to reach this star in 1,447 years. Give your answer as a fraction of the speed of light (e.g. 0.406 for 0.406c) Round your answer to 3 decimal places. Add your answer Question 8 An electron is accelerated accross a voltage of 344kV. What is the momentuum of the electron? Use a value for the electron masss of 511 kevic. Give your answer in units of keWc (eg if the answer is 350 kevic write 350I Round your answer to 0 decimal places. Add your answersirius is the brightest star in the sky. it is 9 light years away. if you were to travel there and back at .95C how much would you age?The remaining lifetime of the Sun in seconds is 1.5 x 10¹7 sec. Convert this value into years. 0000000000000000 PLS HELP!
- I am so confused on relative length and proper length. is it 7.07 or 70.7?How many meters are there in 3.2 light year (s), if the speed of light is 3 x 108 m/s. This number may be very large so do not round or truncate your number. Answer:A healthy astronaut’s heart rate is 60 beats /min Flightdoctors on Earth can monitor an astronaut’s vital signsremotely while in flight. How fast would an astronaut beflying away from Earth if the doctor measured her havinga heart rate of 25 beats/min ?