UFO streaks across a football field at 0.90c relative to the goal posts. Standing on the field, you measure the length of the UFO to be 228 m. The UFO later lands, allowing you to measure it with a meter stick. What length do you now obtain?

Q: A 500 ft long spaceship with a mass of  slugs is traveling at .8 c towards a distant star system 4…

A: (a) Time t° = 3years (b) length L= 833 ft

Q: A futuristic spaceship flies past MARS with a speed of 0.65c relative to the surface of MARS. Inside…

A:

Q: A particle has a lifetime, as measured in its own reference frame, of 0.42 µs. It propagates at a…

A:

Q: earth's frame of reference, i

A:

Q: A spaceship flies over Earth at a speed of 0.845c. A scientist measured the length of the moving…

A: Given spaceship speed v=0.845c And its length while it's moving L=160m Let's assume at rest on earth…

Q: Spaceship A moves away from Earth at a speed of 0.800c (Fig. P26.19). Spaceship B pursues at a speed…

A: the velocity of the spaceship B relative to Earth is 0.900c. the velocity of the spaceship a…

Q: An alien spaceship passes earth at velocity v = 0.74c. The spaceship is headed to the moon, which is…

A:

Q: A spaceship is traveling with constant velocity +0.4câ relative to Earth. At t = () a missile is…

A: Step 1:  Data provided in the problem Speed of the spaceship: v1 = 0.4 c in positive x…

Q: How much time did Carl spend on his calculation?

A:

Q: As the drawing shows, a carpenter on a space station has constructed a 30.0° ramp. A rocket moves…

A:

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: Two spaceships are moving along the line connecting them. One of the spaceships shoots a missile…

A: We will answer the question using the relativistic velocity addition formula. The detailed steps are…

Q: Suppose a particle called a kaon is created by cosmic radiation striking the atmosphere. It moves by…

A: Given data:Speed of particle is, .Actual life of particle is, .

Q: A very fast-moving train car passes you, moving to the right at 0.50c�. You measure its length to be…

A:

Q: A spaceship, 190 m long as seen on board, moves by the earth at 0.930c. What is its length (in m) as…

A:

Q: Two particles in a high-energy accelerator experiment are approaching each other head-on, each with…

A: Given that:In a high energy accelerator experiment, two particles are approaching each other head-on…

Q: Samir is standing on the ground as Maria flies past him in her spaceship at 0.800c in the +x…

A: Length of the stick is L Velocity of the spaceship is 0.8c (Here c  is the speed of light)

Q: You are on a spacecraft traveling away from the earth at 0.75 c�. A beacon on earth flashes exactly…

A: Step 1: spacecraft would travel distance of 0.75c before receiving the next flash.  Step 2: Light…

Q: Two spaceships A and B are travelling in opposite directions and pass each other. A passenger in…

A:

Q: As a spaceship is moving toward Earth, an Earthling measures its length to be 325 m, while the…

A:

Q: A supertrain of proper length 210 m travels at a speed of 0.85c as it passes through a tunnel having…

A: According to the special theory of relativity, if a body moves with a velocity v , which is nearly…

Q: Suppose a particle called a kaon is created by cosmic radiation striking the atmosphere. It moves…

A:

Q: If you were on a spaceship moving away from the Earth at 0.85c would you observe any change in your…

A: Solution: Given data, a spaceship moving away from the Earth at 0.85c

Q: These questions refer to identical spaceships that you and your friend are using. The ships are…

A: The solution of the problems is given below

Q: A car has length 4.40 m when it is at rest relative to you. If it moves past you at a speed of…

A: Given data:  Length of car at rest (L0) = 4.40 m Speed of car (v) = 0.88c Required: Measured length

Q: An electron is moving at a speed of 0.81c nust its kinetic energy increase to raise its s

A: When objects get closer to the speed of light their mass will vary. Thus many classical properties…

Q: A Martian leaves Mars in a spaceship that is heading to Venus. On the way, the spaceship passes…

A:

Q: Two spaceships A and B are travelling in opposite directions and pass each other. A passenger in…

A: Given,  There are 2 spaceships A and B. The length of ship A measured by a passenger traveling in…

Q: A particle has a lifetime of 91 nanoseconds (as measured in its own moving reference frame. It…

A:

Q: An alien spaceship has a mass ofm= 3.2×109kg, and according to the crew, onboard the bow-to-stern…

A: mass of spaceship (m) = 3.2×109 kg Length measured onboard (Lo) = 680 m Length measured by…

Q: Two spaceships are moving along the line connecting them. One of the spaceships shoots a missile…

A: The expression for the relativistic velocity addition is given as  u=v+u'1+vu'c2 where v is the…

Q: A proton moves at .25c. What is it's momentum? Choose the best answer.   Question 16 options:…

A: "A proton is a subatomic particle that is found in the nucleus of an atom. It is one of the three…