An observer on Earth sees a rocket and a saucer flying away from Earth. The observer sees the saucer moving away from Earth at a speed of 0.500c in the positive x-direction the rocket moving away from Earth at a speed of 0.600c in the negative x-direction.  a. What is the velocity of the rocket as seen by the saucer?  b. For some unknown reason, the saucer fires a cube at 0.700c in a direction 60 degrees above the negative x-direction. What are the speed and direction of the cube as seen by the observer on Earth?

Q: Two electrons

A: The questions is answered below

Q: An unstable particle is created in the upper atmosphere from a cosmic ray and travels straight down…

A: Length contraction (l) is the shortening of the measured length of an object moving relative to the…

Q: A particle known as a pion lives for a short time before breaking apart into other particles.…

A: Given that speed of pion and also given the lifetime of pion.Then We have to determine the value of…

Q: Protons in a particle accelerator receive energy from electric fields to be accelerated to…

A: The first postulate of relativity states that the laws of physics are the same in all inertial…

Q: A particle known as a pion lives for a short time before breaking apart into other particles.…

A: Given data as per question speed = 0.990c t = 3.5* 108

Q: Ediz is 20 years old when he begins his journey at a speed of 0.8c towards a distant star 20 light…

A: Let us calculate the time taken for Ediz to reach the star. Ediz's time (proper time) and the time…

Q: a. A rocket is traveling at 0.25c. How fast must it go in order to increase its momentum by a factor…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: 3. A relativistic muon is travelling through space at a speed of 0.95c. An observer on Earth tracks…

A: Speed of muon: v= 0.95c  Time interval in Earth frame of reference: ∆t'= 1.0 ms= 1.0 x 10-3 s.

Q: A spaceship of rest length 130 m races past a timing station at a speed of 0.740c. (a) What is the…

A:

Q: An astronaut wishes to visit the Andromeda galaxy, making a one - way trip that will take 30.0 years…

A: (a).The relativistic time for trip in frame of Earth reference is

Q: A meterstick moving at 0.879c relative to the Earth's surface approaches an observer at rest with…

A: Given:           Velocity of the meter stick is v = 0.879 c length  L = 1 m Now using the length…

Q: An electron moves with speed 0.95c. (a) what is the momentum of the electron according to Newton’s…

A:

Q: Q37.1 You are standing on a train platform watching a high-speed train pass by. A light inside one…

A: In each case we need to refer to the proper reference frame. Some times it may be the person on…

Q: (a) How long would the muon as shown have lived as observed on the Earth if its velocity was 0.0500c…

A:

Q: Suppose you are going to space travel in a rocket with a speed of 0.940c. You return to Earth at the…

A: The time recorded from a lab frame for an object moving with a velocity v wrt to this lab frame…

Q: Problem D In a nuclear reaction two identical particles are created, traveling in opposite…

A:

Q: A moving hydrogen atom (rest mass = 939 MeV/c², where c is the speed of light in vacuum) has a…

A: Given: Rest mass, m =939 MeV/c2 Kinetic energy, K = 313 MeV a) The total energy is the sum of…

Q: A 26  year old astronaut travels in a space craft in the outer space for 2 years in a 0.8c speed of…

A:

Q: Two identical spaceships with proper lengths of 175 m are launched from Earth. Spaceship A is…

A: a)Speed of spaceship B with respect to spaceship A is,

Q: An observer moving toward Earth with a speed of 0.86 c notices that it takes 4.8 min for a person to…

A: v1 = 0.86 c towards the earth t1 = 4.8 min v2 = 0.91 c , away from earth Let to by the time measured…

Q: (a) All but the closest galaxies are receding from our own Milky Way Galaxy. If a galaxy 12.0×109 ly…

A: (a)   The velocity by which the spaceship should be launched to approach the galaxy at 0.990c can be…

Q: A meterstick moving at 0.900 c relative to the Earth’s surface approaches an observer at rest with…

A:

Q: ii) Two Rockets, each 10000 cm long when they are measured at rest, move toward each other with…

A: Relative motion is the comparison between motion same or different frames of reference. In relative…

Q: a) What is the kinetic energy of a 1.0 g particle with a speed of 0.800c? b) What is the rest…

A: Given data *The given mass of the particle is m = 1.0 g = 1.0 × 10-3 kg *The speed of the particle…

Q: A spaceship is heading directly toward the Earth at a velocity of 0.800c . The astronaut on board…

A:

Q: The average lifetime of a pi meson in its own frame of reference (i.e., the proper lifetime) is 2.6…

A: Meson Particles Meson Particles are the hadronic subatomic particles that have an equal number of…

Q: A meterstick moving at 0.900c relative to the Earth’s surface approaches an observer at rest with…

A: Assume the length of the meter stick to be 1m.

Q: A spaceship flies past Mars with a speed of 0.985c relative to the surface of the planet. When the…

A: a) The proper time is the time measured by the observer on the surface of the Mars.

Q: 1.a. A meter stick is held at an angle of 45° with respect to the direction of motion of a…

A:

Q: A garage is a box 3m wide (x-direction) by 2m high (y-direction) and 8m deep (z-direction). You…

A:

Q: An elementary particle produced in a laboratory experiment travels 0.230 mm through the lab at a…

A:

Q: Consider a cosmic ray colliding with a nucleus in the Earth's upper atmosphere that produces a muon…

A:

Q: An astronaut is traveling in a space vehicle moving at 0.500c relative to the Earth. The astronaut…

A: Speed of the astronaut is v = 0.500c Pulse rate of the astronaut is p = 75 beats per minute

Q: An observer moving at a speed of 0.995c relative to a rod (Fig. P26.49) measures its length to be…

A: Consider the observer to be moving in the x-direction. The x-component of the length is contracted…

Q: A proton is accelerated to 0.999c.a. What is the proton’s momentum?b. By what factor does the…

A: (a) The proton's speed is comparable to the speed of light. Thus, the proton's momentum will be…

Q: (ii) Two Rockets, each 10000 cm long when they are measured at rest, move toward each other with…

A: Given: Length of the rocket L = 10000 cm. The speed of each rocket v = 0.9c.

Q: A particle known as a pion lives for a short time before breaking apart into other particles.…

A: According to the theory of relativity, the time dilates for a body moving with speed comparable to…