Object A is moving past earth 80% the speed of light (0.8c). Object B is moving past earth 99% the speed of light (0.99c). What is the speed of object B relative to object A?
Please show your work, I need help setting up the problem.
Object A is moving past earth 80% the speed of light (0.8c). Object B is moving...
A spaceship is moving past Earth at 0.99c. The spaceship fires two lasers. Laser A is in the same direction it is traveling, and Laser B is in the opposite direction. How fast will the light from each laser be traveling according to an observer on Earth? Select one: a. The light from Laser A will be traveling at 1.99c, the light from Laser B at 0.010 b. The light from Laser A will be traveling at c, the light...
A cube of proper edge length ( and mass m is moving past you at speed 0.8c. Determine the volume for the object that you observe if the velocity is directed (a) along an edge, (b) along a face diagonal, and (c) along the body diagonal of the cube. Note: The body diagonal is difficult. What density do you observe the cube to have in each situation How do these densities compare to nuclear densities? At what speed wll the...
Consider a spiral galaxy that is moving directly away from Earth with a speed V=3.24*10^5 at its center. The galaxy is also rotating about its center such that points in the spiral arms are moving with a soeed V=5.750*10^5m/s relative to the center. If light with a frequency of 7.308*10^14Hz is emitted in both arms of the galaxy, what frequency is detected by astronomers observing the arm that is moving (a) toward and (b) away from Earth? Please break down...
3. A hot object is approaching the earth at 60% of the speed of light and appears to be 8 m long along the approach axis and emitting a peak frequency of 400 GHz. What is the actual frequency emitted by the object in its own frame, and how long is it in that same frame?
Practice Problem 27.3 SOLUTION A spaceship flies past earth with a speed of 0.980c (about 2.97 x 10 m/s) relative to earth. A crew member on the spaceship measures its length, obtaining the value 400 m. What is the length measured by observers on earth? SET UP The length of the spaceship in the frame in which it is at rest (400 m) is a proper length in this frame, corresponding to lo in We want to find the length...
You are standing on the ground observing the sky. Two spaceships A and B fly past you. Spaceship A is moving at a constant speed of 1000 m/s relative to the ground. Spaceship B is moving opposite to A at speed of 1000 m/s relative to the ground. Spaceship A fires a strobe light that sends out a pulse of light opposite to where it is heading. a) What is the velocity of spaceship A relative to spaceship B? b) What is...
The Hydra galaxy is moving away from Earth at 6.0 x 107 m/s. What fraction of the speed of light is this? Please show work and the equation used.
Problem 5: A meter-stick is moving with a speed of 0.7 c relative to the Earth. What is the stick's length as measured by an observer on Earth if the stick is parallel to its velocity v? What is the stick's length as measured by the observer on Earth if the stick is making an angle of 50° with its velocity v?
question number 3 please show all steps so i can break it down for practice. thank you multiple of the speed of light, c. You may ignore the effects of acceleration.) (b) How long would that trip take according to an observer that remained on Earth? 3. How fast must an object move before its length appears to be contracted to one-quarter its proper length? 4. According to an observer on Earth, a space-ship that travels past at 0.8c is...
Rocket A passes Earth at a speed of 0.76 c. At the same time, rocket B passes Earth moving 0.93 c relative to Earth in the same direction as A. Part A How fast is B moving relative to A when it passes A? Express your answer using two significant figures.