Choose the BEST answer to the following: Clocks on a fast-moving spaceship whizzing past Earth appear to run slow when viewed from (a) inside the spaceship. (b) Earth. (c) Both of these. (d) Neither of these.

Q: Due to length contraction, you see people in a spaceship passing by you as being slightly narrower…

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Q: Explain the term observer in relativity.

A: The frame of reference is the inertial reference, in which one object is observed relative to other…

Q: the fact that the clocks read differently when each is in a different realm of spacetime is a…

A: Theory of special relativity :  According to special theory of relativity in time , If there are…

Q: Would we notice a slowing down or speeding up of a clock if we carried it to the bottom of a very…

A: According to Einstein'd general theory f relativity, gravitation will slows down the time. If…

Q: What is the difference of special relativity and general relativity? Give also the similarities

A: Special relativity given by Einstein is a theory made for relativistic particles to see how they…

Q: In a spaceship far from the reaches of gravity, under what conditions could you feel as if the…

A: It can be felt as if the spaceship were stationary in Earth’s surface if the spaceship accelerates…

Q: . If you were on a spaceship traveling at 0.6c away from astar, at what speed would the starlight…

A: speed = 0.6 c

Q: What classical idea about space and time was rejected by Einstein?

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Q: A woman living in galaxy X is about to deliver her first baby. The nearest hospital is in galaxy Y,…

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Q: Consider the following figure. If you are traveling at 25% the speed of light (0.25c), what would…

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Q: a person puts in a 8.9 hr shift while traveling on a spaceship. an observer on earth determines that…

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Q: What is the principal difference between the theory of special relativity and the theory of general…

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Q: Does special relativity allow anything to travel faster than light? Discuss.

A: Given: Does special relativity allow anything to travel faster than light? Discuss.

Q: A woman living in galaxy X is about to deliver her first baby. The nearest hospital is in galaxy Y,…

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Q: If you were on Earth monitoring a person in a rocket ship traveling away from Earth at a speed close…

A: Given: If you were on Earth monitoring a person in a rocket ship traveling away from Earth at a…

Q: Why our mass changes when we travel in elevator?

A: Mass is quantity of matter , it remains the same .Weight the person measured in a accelerating…

Q: What do you mean by time dilation?

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Q: The most significant validation of Einstein’s Theory of General Relativity required the observation…

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Q: As you pilot your space utility vehicle at a constant speed toward the moon, a race pilot flies past…

A: Reading on the pilot's timer is, ∆t0=∆t1-v2c2

Q: > A spaceship is travelling at 0.9c of light speed. If the pilot measured his distance to Earth is…

A: Given Velocity of spaceship = 0.9c Concept Length contraction:- Moving object appears smaller than…

Q: The beam of light from a laser on a rotating turntable casts into space. At some distance, the beam…

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Q: What effect does mass have on spacetime?

A: The general theory of relativity gives the idea of geometry of curvature which implies the four…

Q: How can we travel to the past?

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Q: How do measurements of time differ for events in a frame of reference that moves at 50% the speed of…

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Q: Does special relativity allow anything to travel faster than light? Explain.

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Q: What is constant in Einstein’s second postulate?

A: The second postulate of special relativity is “Speed of light is same in every inertia frame of…

Q: Under what condition will you and a friend share the same realm of spacetime? When will you not…

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Q: Nothing on the different consequences of General Relativity Theory ,What is its contribution to…

A: solution as

Q: If you are in a spaceship, traveling at 90% the speed of light, how much time will pass for you? A:…

A: Find the time of the person will pass to the spaceship.

Q: spaceship according to pilot? > A ship is travelling to Alpha Centuari at 0.95c and takes 4.5 years…

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Q: State the two postulates of Einstein’s special theory of relativity and explain its consequence on…

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Q: Imagine yourself as an astronaut being paid according to the time you spend traveling in space. You…

A: Required : Which clock to chose.

Q: Is it possible in principle for a human being who has a life expectancy of 70 years to make a…

A: Life span = 70 years  distance of universe = thousand light years

Q: Is the statement by the philosopher Kierkegaard that “Life can only be understood backwards; bur it…

A: The statement given by the Kierkegaard that “life can only be understood backward, but it must be…

Q: It is possible to time travel? Support your answer using consequences of Special Relativity.

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Q: In your own words (no plagiarism) state the two postulates of Albert Einstein's special theory of…

A: Special theory of relativity deals with the problem in which one frame of reference moves with a…

Frame of reference

In physics, a frame of reference is a coordinate system used to specify either the position or the orientation or velocity of a body. The origin of the coordinate acts as a reference point for measuring the position or relative motion of a body. The coordinate system can be a cartesian coordinate, cylindrical coordinate, or a polar coordinate.