Physics, 21.08.2019 17:10 berniceallonce22

List and explain brietfly two bits of experimental evidence that support the special theory of relativity.

Answers: 2

Show answers

Answers

Numerous experiments have been performed since the formulation of theory of relativity which establish the theory of special relativity, however we shall consider only 2 experiments mentioned below.

1) Michelson Morley experiment:- Since the basic premise of Newtonian mechanics is that motion of two bodies is always relative and there is no absolute speed of an object, the space was thought to be filled with a special material termed as ether that was supposedly present everywhere and since light was supposed to be as a wave, the speed of light was thought to be measured with respect to this imaginary substance that was thought to be invisible. By measuring the difference in the speeds of light when moving in the direction of ether and while moving against the direction of ether would establish the existence of this invisible substance that was thought to be absolute frame of reference of the universe. Michelson Morley used an instrument known as interferometer to measure this difference of speed of light when moving in 2 different directions by making interference patterns of the light when superimposed. The results of the experiment were shocking as no interference patterns were observed thus demolishing the existence of ether and establishing the fact that speed of light is same in all reference frames, a very basic postulate of special theory of relativity.

2) Decay of muons: A basic result that follows from special theory of relativity is that as a object moves faster the time it observes is slower a concept known as time dilatation. This was established by the presence of muons which are elementary particles which are unstable in the lower layer's of atmosphere. Classically the muons should not reach the lower layer's of atmosphere and should decay earlier but as they are observed in the lower layer's of atmosphere because they travel at speeds comparable to speed of light thus the time from a frame attached to muons runs at a slower rate thus giving them time to reach lower region's of atmosphere.

3) GPS systems have been designed taking into effect the calculations predicted by special; theory of relativity.

Answer from: Quest

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

Answer from: Quest

reserve is the answer

Another question on Physics

Physics, 21.06.2019 22:40

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. a) what is the block's initial mechanical energy? b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Answers: 3

Answer

Physics, 22.06.2019 02:00

Jasmine is diving off a 3-meter springboard. her height in meters above the water when she is x meters horizontally from the end of the board is approximated by the equation h=-x^2+3x+3. what is the maximum height jasmine will reach on her dive?

Answers: 3

Answer

Physics, 22.06.2019 08:30

Hey student studies gravity using objects that have the same mass which two objects have the greatest gravitational force acting between them a. 100kg 1.0m 100kg b. 100kg 2.0m 100kg c. 100kg 2.0m 100kg big d. 100kg big 3.0m 100kg big

Answers: 1

Answer

Physics, 22.06.2019 09:10

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

Answers: 1

Answer

You know the right answer?

List and explain brietfly two bits of experimental evidence that support the special theory of relat...

Questions