Two starships are moving away from each other at 8800 km/s when starship A emits a navigation signal. Starship B detects this signal to have wavelength 716 nm.
What was the original wavelength?
Two starships are moving away from each other at 8800 km/s when starship A emits a...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula isv Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per second?...
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km/s/Mly. The formula is v Hod where Ho is the Hubble constant and d is the distance between the galaxies. A galaxy is 22 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers per...
A telescope is used to observe two objects that are 10 km away from the telescope, and these two objects are 0.12m apart from each other. The wavelength of the light used for observation is 600 nm. Calculate the diameter of the objective lens of the telescope if it can just resolve the two objects. 0.12 m 10 km
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 is the wavelength of the light observed by someone on the Earth?
The rate at which two galaxies are moving away from each other can be determined from Hubble's law. This speed can be estimated by multiplying the distance between the galaxies by the Hubble constant of 20 km'sMlly. The formula is v = Hod where H0 is the Hubble constant and d is the distance between the galaxies. A galaxy is 10 Mly away from the Milky Way. How fast is this galaxy moving away from the Milky Way in kilometers...
5. Two cars initially separated by 1000 m are traveling away from each other. Car A is moving at 20 m/s and is accelerating at 4 m/s'. Car B is moving at 10 m/s and is accelerating at 6 m/s. About how far (in meters) will Car A have traveled when the cars are 4000 meters apart? 6. A sailboat leaves a harbor and sails 1.8 km in the direction 65° south of east, where the captain stops for lunch....
two trains are moving away from each other. The First train travels at 180kph while the second 195kph. The first train emits a sound of frequency 970 hz. What is the frequency of the sound perceived by a passenger in the second train?
Most of the galaxies in the universe are observed to be moving away from Earth. Suppose a particular galaxy emits orange light with a frequency of 5.000×1014Hz. If the galaxy is receding from Earth with a speed of 4875 km/s, what is the frequency of the light when it reaches Earth?
A starship moving at 0.85c travels from Earth to the Wolf-359 system, 7.9 light years away. How long will the trip take according to a) Earth’s clocks? b) the starship’s clocks? c) How far is it from Earth to the star according to the starship’s crew? d) What do they compute their speed to be?
When the source of a wave and an observer move either towards or away from each other the observed frequency of the wave will be different from the frequency at which the wave is emitted. For example, if you are standing by the side of the road and a police car with a siren passes by, the frequency of the sound you hear will be higher when the car is moving towards you and lower when it is moving away...