How to make space mean speed become speed (kph)?

Q: A rectangular billboard in space has the dimensions 10 meters by 20 meters. How fast and in what…

A: Length contraction occurs only along the direction of motion. It needs 20 m side to appear as the 10…

Q: lighthouse sweeps its beam of light around in a circle once every 7.6 s. To an observer in a…

A: Given, Time interval, ∆t=7.6s ∆t'=16s

Q: Imagine two civilizations from different planets that have started an intergalactic war. During a…

A: Relative Velocity is a term that refers to the speed at which something is moving This is the speed…

Q: What is second postulate of special relativity?

A: Relativity is a theorem, formulated by Albert Einstein, which states that space and time are…

Q: Which of the following is not proof of the theory of relativity? O Muons reaching the earth's…

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Q: A rocket is being launched. After a while, it rises at a constant velocity of 5 miles per second. An…

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Q: Which runs slower, a clock at the top of the tallest skyscraper in Chicago or a clock on the shore…

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

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Q: The idea that force causes acceleration doesn’t seem strange. This and other ideas of Newtonian…

A: The idea of relativity seems odd since the effects of relativity will be observed when the motion is…

Q: Discuss space-like and time-like intervals giving examples. oont by snace.time

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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: kinetic energy

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Q: Which one of these statements about spacetime is false? Waves can travel through spacetime. They are…

A: Time is considered as forth dimension in space time coordinates.

Q: and your friend both start your trips in Chicago. Driving nonstop, you reach Los Angeles — a…

A: Speed = distance travelled /time taken  1day = 24 hrs  1hours = 60 min  1 min = 60 sec

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: What do you mean by time dilation?

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Q: You are now in 20 years old. You are disappointed with the current situation. So, you decide to…

A: Present age = 20 years New age on earth when you return to earth = 25 years

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

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Q: treatment

A: In the Newtonian mechanics any physical quantity was described as a three dimensional and lies in…

Q: Does Einstein’s theory of gravitation invalidate Newton’s theory of gravitation? Explain.

A: No, Einstein's theory of gravitation does not in validate newton's theory of gravitation.

Q: What do you understand by time-like interval?

A: There are different types of intervals based on the space-time intervals between the events such as…

Q: Choose the BEST answer to the following: To say thatE=mc2 is to say that energy (a) increases as the…

A: As per the energy mass equivalence equation, the mass of the object can be converted into energy and…

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: What is Newtonian principle of relativity?

A: Newtonian principle of relativity: Newton describes the motion of object with respect to a frame.…

Q: James covers a distance of 8 meters in the first second of a 100 meter race. Then, he sprints at a…

A: Data provided:  Distance covered in first second = 8 m Total length of race = 100 m Total time = 9 s…

Q: How do we define the time interval of one "second" now, and keep track of elapsed time accurately…

A: One second is the time that elapses during 9,192,631,770 cycles of the radiation produced  by the…

Q: Why the height of an object increases and then decreases as time passes ?

A: This is possible for motion under gravity

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: A severely injured Peter can only live for the next 3.5 hours. Before dying, he wants to go back to…

A: Speed is the distance traveled per unit time. Its SI unit is m/s. The SI unit of distance is meter.…

Q: You are now in 20 years old. You are disappointed with the current situation. So, you decide to…

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Q: What is faster than the speed of light?

A: According to the Einstein theory nothing can travel faster than the speed of light in a vacuum.

Q: What do Newton’s and einstein description of gravity have in common

A: Gravity and gravitational is a natural phenomenon by which all things with mass or energy including…

Q: Einstein's theory of relativity tells us that travelers who make a high-speed trip to a distant stat…

A: The twin paradox is a concept based on Einstein's theory of relativity. According to his theory,…

Q: How can travel distances be shortened or avoided?

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Q: Choose the BEST answer to the following: When we speak of time dilation, we mean that time (a)…

A: The time dilation can be expressed as,

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.