How do we establish a standard time interval in physics and the standard unit of time, the  second?     By the natural frequencies in an atom of the element cesium.     From the mechanical spin of a standard metal cylinder     From the duration of the year, the orbital period of Earth around the Sun     From the rotation rate of the Earth on its axis

Q: Explore the duality of time in philosophy and physics, considering concepts like the arrow of time,…

A: The duality of time is a fascinating concept that has been explored in both philosophy and physics,…

Q: The moon is 1.3 light-seconds away. Imagine you are standing at the Canadian Space Agency…

A:

Q: A. In Earth orbit B. on Earth's surface, at sea level C. on Earth's surface, in the mountains D.…

A: Clock run more slowly  Option b) correct On earth surface ,at sea level

Q: The Hawaiian chain of islands extends beyond what we typically think of as Hawaii. The extinct…

A: Given: The basalts on Midway can be radio metrically dated, and are 27 million years old. Midway is…

Q: Two trains are 9.82km apart. They travel in opposite directions, to each other. Train A has a speed…

A: distance between two trains=9.82 kmspeed of train A=5.87 kmh=1.63msAcceleration of trainA=aA=0.29…

Q: (8) The clock on the Big Ben Tower in London reads 12 noon. If you travel away from the clock at a…

A: 8) In spacetime, the four dimensions are length, height, width, and time. If you are at rest with…

Q: How many seconds are there in one light-year? 1 year = 365 days 3.15 x 105 seconds 3.15 x 106…

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Q: 6. How much time will it take for a bug to travel 5 meters across the floor if it is traveling at 1…

A: Given,      Distance to travel =5meters     Travelling speed is 1m/S   Let time T taken by bug to…

Q: How long does it take light to travel from the Earth to the Moon? The speed of light is 2.998×105…

A: given that  the speed of light is 2.998×105 km/s and the Moon is 3.844×105 km away from Earth.

Q: throws a rock straight up into the air on Planet A.  Jim throws a rock straight up into the air on…

A: Given h is function of t4 .

Q: Which of the following is a key difference between Newton's Law of Gravity and Einstein's equations…

A: Einstein’s theory of general relativity explained some interesting properties of gravity not covered…

Q: Ignoring air resistance, how long will it take a rock that falls off a 50 meter cliff to hit the…

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Q: Which of the following statements about time are true? Pick all that apply. There is an…

A: 1. There is an "absolute" time that would be seen with the same value everywhere in the universe.…

Q: 4. The scatter plot shows the number of passengers at a major airport over a 15-year period from the…

A: At t=0 , P=55 million At t=11 , P=65 million  passangers in 11 years = area under graph  =…

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: Student Height (in feet and inches) Physics Student Mass (in kg) Stair height (in m) Time (in s) #1…

A: yeh, you have done correctly F=mg and work done W= Fd

Q: what are the conversions in order to convert lightyears into meters? What are the conversions needed…

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Q: 3Which of the following best describes a frame of reference?   an experiment that proved that Earth…

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Q: What are the two postulates of Einstein's special theory of relativity?

A: The special theory of relativity was published in 1905 by Albert Einstein. It explained how speed…

Q: A square with an edge 8 cm long has an area of (8cm)(8cm) = 64 cm2. What is this area in square…

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Q: Is it possible to estimate data while looking at the larger picture? Is it possible for a student to…

A: Yes, it possible to estimate data while looking at the larger picture.Often done in statics and data…

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

A: The Second is defined as the time the elapses during the 91926317770 period of radiation produces by…

Q: Speed of light is just a theoretical concept: it cannot actually be measured in practice because…

A: Light is electromagnetic radiation comprises of small bundles of energy.  Range of visible light…

Q: The star Alpha Centauri is 4.367 light years from earth. What velocity do you need to travel at to…

A: The distance of Alpha centauri from earth is 4.367 light years1 light year=9.461×1015 m4.367 light…

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.