Recent questions in Special Relativity

+17 votes

0 answers

Two particles are moving along a straight line towards each other with uniform velocity of 0.8c and 0.5c. What is the relative velocity of approach between them?

asked Feb 10, 2023 in Special Relativity by Cocorita

+23 votes

0 answers

What are the effects of acceleration on a spaceship travelling at the speed of light?

asked Feb 10, 2023 in Special Relativity by Kevin Keelan

+72 votes

0 answers

On what factors does time dilation depend (excluding speed and gravity)?

asked Feb 10, 2023 in Special Relativity by luna19

+6 votes

0 answers

If two astronauts are traveling at speeds close to the speed of light in opposite directions, will they be able to see each other age slowly as they pass by one another on their ships (but not outside)?

asked Feb 10, 2023 in Special Relativity by Corvus93

+20 votes

0 answers

Car A is moving at a speed of 55 km/hr towards car B, which is moving towards car A at a speed of 45 km/h. If the two cars were separated at a distance of 150 m, what's the time it will take for the two cars to meet?

asked Feb 10, 2023 in Special Relativity by Steviescreamer

+26 votes

0 answers

How does the speed of light change depending on direction and location?

asked Feb 10, 2023 in Special Relativity by Trapper T

+22 votes

0 answers

How long would it take to get to each planet at the speed of light?

asked Feb 10, 2023 in Special Relativity by Jacqui ONeill

+26 votes

0 answers

How long would it take a ship travelling at nearly the speed of light to reach another star system (of similar size)?

asked Jan 20, 2023 in Special Relativity by Gregg McCarthy

+14 votes

0 answers

What are the effects of time dilation from special relativity? How fast does one have to go in order for these effects to be noticeable (on earth)?

asked Jan 20, 2023 in Special Relativity by roc27

+16 votes

0 answers

If 2 spaceships, each traveling .6C from the Earth’s perspective, fly toward each other, what are the dynamics of their situation relative to each other? How does that work out if nothing can travel faster than 1C?

asked Jan 20, 2023 in Special Relativity by Ion Transient

+60 votes

0 answers

What was the reason scientists had difficulty calculating the value of the speed of light (c)? Why didn't they use the statement, “The distance traveled by light in one second” as the definition?

asked Jan 19, 2023 in Special Relativity by hacktoad

+26 votes

0 answers

What is the physical meaning of four-velocity and what is its difference with normal velocity and proper velocity? How do observers experience these?

asked Jan 19, 2023 in Special Relativity by potty painter

+195 votes

0 answers

What are some objects that can travel faster than the speed of sound?

asked Jan 19, 2023 in Special Relativity by soabar

+19 votes

0 answers

What is the Lorentz factor?

asked Jan 19, 2023 in Special Relativity by apl

+1 vote

0 answers

What happens when an object gains velocity?

asked Jan 19, 2023 in Special Relativity by prosparks

+8 votes

0 answers

Does gravity cause relativistic effects like time dilation?

asked Jan 19, 2023 in Special Relativity by LuminousCharm

+72 votes

0 answers

If things could move at the speed of light, how much energy would be needed to increase their speed by half again?

asked Jan 19, 2023 in Special Relativity by technoloops

+10 votes

0 answers

How would time work if you were to go near the speed of light and then turn around and go back towards Earth?

asked Jan 19, 2023 in Special Relativity by sub7even75 (3.3k points)

+95 votes

0 answers

What would occur if the speed of light were equal to the rate of expansion of the universe?

asked Jan 19, 2023 in Special Relativity by PlanMan

+245 votes

0 answers

If no matter can travel faster than the speed of light, how could any intelligent civilization possibly ever visit Earth? How could humans do so thousands or millions of years in the future?

asked Jan 18, 2023 in Special Relativity by CrystalCharm

Page:

« prev
1
...
13
14
15
16
17
18
19
...
36
next »

Recent questions in Special Relativity

...